The presence of bacteria, viruses, and fungi in the soil. This term is not restricted to pathogenic organisms.
The unconsolidated mineral or organic matter on the surface of the earth that serves as a natural medium for the growth of land plants.
The study of microorganisms such as fungi, bacteria, algae, archaea, and viruses.
Substances which pollute the soil. Use for soil pollutants in general or for which there is no specific heading.
Techniques used in microbiology.
One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophy (via chemical reaction) or PHOTOTROPHY (via light reaction); for chemotrophs by their source of chemical energy: CHEMOLITHOTROPHY (from inorganic compounds) or chemoorganotrophy (from organic compounds); and by their source for CARBON; NITROGEN; etc.; HETEROTROPHY (from organic sources) or AUTOTROPHY (from CARBON DIOXIDE). They can also be classified by whether or not they stain (based on the structure of their CELL WALLS) with CRYSTAL VIOLET dye: gram-negative or gram-positive.
The study of the structure, growth, function, genetics, and reproduction of bacteria, and BACTERIAL INFECTIONS.
Hospital facilities equipped to carry out investigative procedures.
Facilities equipped to carry out investigative procedures.
Techniques used in studying bacteria.
Constituent of 30S subunit prokaryotic ribosomes containing 1600 nucleotides and 21 proteins. 16S rRNA is involved in initiation of polypeptide synthesis.
Infections by bacteria, general or unspecified.
Pollutants, present in soil, which exhibit radioactivity.
Substances that reduce the growth or reproduction of BACTERIA.
A kingdom of eukaryotic, heterotrophic organisms that live parasitically as saprobes, including MUSHROOMS; YEASTS; smuts, molds, etc. They reproduce either sexually or asexually, and have life cycles that range from simple to complex. Filamentous fungi, commonly known as molds, refer to those that grow as multicellular colonies.
Accidentally acquired infection in laboratory workers.
Deoxyribonucleic acid that makes up the genetic material of bacteria.
The study of microorganisms living in a variety of environments (air, soil, water, etc.) and their pathogenic relationship to other organisms including man.
Elimination of ENVIRONMENTAL POLLUTANTS; PESTICIDES and other waste using living organisms, usually involving intervention of environmental or sanitation engineers.
DNA sequences encoding RIBOSOMAL RNA and the segments of DNA separating the individual ribosomal RNA genes, referred to as RIBOSOMAL SPACER DNA.
A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)
Techniques used to carry out clinical investigative procedures in the diagnosis and therapy of disease.
The presence of bacteria, viruses, and fungi in food and food products. This term is not restricted to pathogenic organisms: the presence of various non-pathogenic bacteria and fungi in cheeses and wines, for example, is included in this concept.
Bacteria which lose crystal violet stain but are stained pink when treated by Gram's method.
The relationships of groups of organisms as reflected by their genetic makeup.
A multistage process that includes cloning, physical mapping, subcloning, determination of the DNA SEQUENCE, and information analysis.
Woody, usually tall, perennial higher plants (Angiosperms, Gymnosperms, and some Pterophyta) having usually a main stem and numerous branches.
Any liquid or solid preparation made specifically for the growth, storage, or transport of microorganisms or other types of cells. The variety of media that exist allow for the culturing of specific microorganisms and cell types, such as differential media, selective media, test media, and defined media. Solid media consist of liquid media that have been solidified with an agent such as AGAR or GELATIN.
Procedures for identifying types and strains of bacteria. The most frequently employed typing systems are BACTERIOPHAGE TYPING and SEROTYPING as well as bacteriocin typing and biotyping.
Substances or mixtures that are added to the soil to supply nutrients or to make available nutrients already present in the soil, in order to increase plant growth and productivity.
Any tests that demonstrate the relative efficacy of different chemotherapeutic agents against specific microorganisms (i.e., bacteria, fungi, viruses).
Process that is gone through in order for a device to receive approval by a government regulatory agency. This includes any required preclinical or clinical testing, review, submission, and evaluation of the applications and test results, and post-marketing surveillance. It is not restricted to FDA.
The presence of bacteria, viruses, and fungi in water. This term is not restricted to pathogenic organisms.
The science, art or practice of cultivating soil, producing crops, and raising livestock.
The usually underground portions of a plant that serve as support, store food, and through which water and mineral nutrients enter the plant. (From American Heritage Dictionary, 1982; Concise Dictionary of Biology, 1990)
Freedom of equipment from actual or potential hazards.
The study of the structure, growth, function, genetics, and reproduction of fungi, and MYCOSES.
The variety of all native living organisms and their various forms and interrelationships.
Controlled operation of an apparatus, process, or system by mechanical or electronic devices that take the place of human organs of observation, effort, and decision. (From Webster's Collegiate Dictionary, 1993)
Infections caused by bacteria that show up as pink (negative) when treated by the gram-staining method.
Bacteria which retain the crystal violet stain when treated by Gram's method.
Total mass of all the organisms of a given type and/or in a given area. (From Concise Dictionary of Biology, 1990) It includes the yield of vegetative mass produced from any given crop.
A family of gram-negative, facultatively anaerobic, rod-shaped bacteria that do not form endospores. Its organisms are distributed worldwide with some being saprophytes and others being plant and animal parasites. Many species are of considerable economic importance due to their pathogenic effects on agriculture and livestock.
In vitro method for producing large amounts of specific DNA or RNA fragments of defined length and sequence from small amounts of short oligonucleotide flanking sequences (primers). The essential steps include thermal denaturation of the double-stranded target molecules, annealing of the primers to their complementary sequences, and extension of the annealed primers by enzymatic synthesis with DNA polymerase. The reaction is efficient, specific, and extremely sensitive. Uses for the reaction include disease diagnosis, detection of difficult-to-isolate pathogens, mutation analysis, genetic testing, DNA sequencing, and analyzing evolutionary relationships.
Genes, found in both prokaryotes and eukaryotes, which are transcribed to produce the RNA which is incorporated into RIBOSOMES. Prokaryotic rRNA genes are usually found in OPERONS dispersed throughout the GENOME, whereas eukaryotic rRNA genes are clustered, multicistronic transcriptional units.
Studies determining the effectiveness or value of processes, personnel, and equipment, or the material on conducting such studies. For drugs and devices, CLINICAL TRIALS AS TOPIC; DRUG EVALUATION; and DRUG EVALUATION, PRECLINICAL are available.
Information systems, usually computer-assisted, designed to store, manipulate, and retrieve information for planning, organizing, directing, and controlling administrative and clinical activities associated with the provision and utilization of clinical laboratory services.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
A genus of gram-positive, facultatively anaerobic, coccoid bacteria. Its organisms occur singly, in pairs, and in tetrads and characteristically divide in more than one plane to form irregular clusters. Natural populations of Staphylococcus are found on the skin and mucous membranes of warm-blooded animals. Some species are opportunistic pathogens of humans and animals.
Health care professionals, technicians, and assistants staffing LABORATORIES in research or health care facilities.
Enumeration by direct count of viable, isolated bacterial, archaeal, or fungal CELLS or SPORES capable of growth on solid CULTURE MEDIA. The method is used routinely by environmental microbiologists for quantifying organisms in AIR; FOOD; and WATER; by clinicians for measuring patients' microbial load; and in antimicrobial drug testing.
Time period from 1901 through 2000 of the common era.
The presence of viable bacteria circulating in the blood. Fever, chills, tachycardia, and tachypnea are common acute manifestations of bacteremia. The majority of cases are seen in already hospitalized patients, most of whom have underlying diseases or procedures which render their bloodstreams susceptible to invasion.
The ability of bacteria to resist or to become tolerant to chemotherapeutic agents, antimicrobial agents, or antibiotics. This resistance may be acquired through gene mutation or foreign DNA in transmissible plasmids (R FACTORS).
Infections with bacteria of the genus STAPHYLOCOCCUS.
One of the three domains of life (the others being BACTERIA and Eukarya), formerly called Archaebacteria under the taxon Bacteria, but now considered separate and distinct. They are characterized by: (1) the presence of characteristic tRNAs and ribosomal RNAs; (2) the absence of peptidoglycan cell walls; (3) the presence of ether-linked lipids built from branched-chain subunits; and (4) their occurrence in unusual habitats. While archaea resemble bacteria in morphology and genomic organization, they resemble eukarya in their method of genomic replication. The domain contains at least four kingdoms: CRENARCHAEOTA; EURYARCHAEOTA; NANOARCHAEOTA; and KORARCHAEOTA.
A nonmetallic element with atomic symbol C, atomic number 6, and atomic weight [12.0096; 12.0116]. It may occur as several different allotropes including DIAMOND; CHARCOAL; and GRAPHITE; and as SOOT from incompletely burned fuel.
Any infection which a patient contracts in a health-care institution.
A genus of gram-negative, anaerobic, nonsporeforming, nonmotile rods or coccobacilli. Organisms in this genus had originally been classified as members of the BACTEROIDES genus but overwhelming biochemical and chemical findings indicated the need to separate them from other Bacteroides species, and hence, this new genus was created.
An element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up about 78% of the earth's atmosphere by volume. It is a constituent of proteins and nucleic acids and found in all living cells.
A system for verifying and maintaining a desired level of quality in a product or process by careful planning, use of proper equipment, continued inspection, and corrective action as required. (Random House Unabridged Dictionary, 2d ed)
Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)
A dye that is a mixture of violet rosanilinis with antibacterial, antifungal, and anthelmintic properties.
Hospitals controlled by agencies and departments of the U.S. federal government.
Accumulation of purulent material in tissues, organs, or circumscribed spaces, usually associated with signs of infection.
Invasion of the site of trauma by pathogenic microorganisms.
The monitoring of the level of toxins, chemical pollutants, microbial contaminants, or other harmful substances in the environment (soil, air, and water), workplace, or in the bodies of people and animals present in that environment.
Accumulations of solid or liquid animal excreta usually from stables and barnyards with or without litter material. Its chief application is as a fertilizer. (From Webster's 3d ed)
Procedures for collecting, preserving, and transporting of specimens sufficiently stable to provide accurate and precise results suitable for clinical interpretation.
The spectrum of different living organisms inhabiting a particular region, habitat, or biotope.
Inflammation of the NASAL MUCOSA in the ETHMOID SINUS. It may present itself as an acute (infectious) or chronic (allergic) condition.
A group of different species of microorganisms that act together as a community.
Time period from 1801 through 1900 of the common era.
The specialty related to the performance of techniques in clinical pathology such as those in hematology, microbiology, and other general clinical laboratory applications.
Inflammation of the NASAL MUCOSA in the MAXILLARY SINUS. In many cases, it is caused by an infection of the bacteria HAEMOPHILUS INFLUENZAE; STREPTOCOCCUS PNEUMONIAE; or STAPHYLOCOCCUS AUREUS.
The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species.
Commercially prepared reagent sets, with accessory devices, containing all of the major components and literature necessary to perform one or more designated diagnostic tests or procedures. They may be for laboratory or personal use.
The study of serum, especially of antigen-antibody reactions in vitro.
The body fluid that circulates in the vascular system (BLOOD VESSELS). Whole blood includes PLASMA and BLOOD CELLS.
Removal of ENVIRONMENTAL POLLUTANTS or contaminants for the general protection of the environment. This is accomplished by various chemical, biological, and bulk movement methods, in conjunction with ENVIRONMENTAL MONITORING.
A complex sulfated polymer of galactose units, extracted from Gelidium cartilagineum, Gracilaria confervoides, and related red algae. It is used as a gel in the preparation of solid culture media for microorganisms, as a bulk laxative, in making emulsions, and as a supporting medium for immunodiffusion and immunoelectrophoresis.
Potentially pathogenic bacteria found in nasal membranes, skin, hair follicles, and perineum of warm-blooded animals. They may cause a wide range of infections and intoxications.
MOLECULAR BIOLOGY techniques used in the diagnosis of disease.
A genus of gram-positive, anaerobic, coccoid bacteria that is part of the normal flora of humans. Its organisms are opportunistic pathogens causing bacteremias and soft tissue infections.
Ribonucleic acid in bacteria having regulatory and catalytic roles as well as involvement in protein synthesis.
Infections caused by bacteria that retain the crystal violet stain (positive) when treated by the gram-staining method.
A type of climate characterized by insufficient moisture to support appreciable plant life. It is a climate of extreme aridity, usually of extreme heat, and of negligible rainfall. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
A collective genome representative of the many organisms, primarily microorganisms, existing in a community.
Metals with high specific gravity, typically larger than 5. They have complex spectra, form colored salts and double salts, have a low electrode potential, are mainly amphoteric, yield weak bases and weak acids, and are oxidizing or reducing agents (From Grant & Hackh's Chemical Dictionary, 5th ed)
Physiological processes and properties of BACTERIA.
Excrement from the INTESTINES, containing unabsorbed solids, waste products, secretions, and BACTERIA of the DIGESTIVE SYSTEM.
Enzymes that cause coagulation in plasma by forming a complex with human PROTHROMBIN. Coagulases are produced by certain STAPHYLOCOCCUS and YERSINIA PESTIS. Staphylococci produce two types of coagulase: Staphylocoagulase, a free coagulase that produces true clotting of plasma, and Staphylococcal clumping factor, a bound coagulase in the cell wall that induces clumping of cells in the presence of fibrinogen.
Organic matter in a state of advanced decay, after passing through the stages of COMPOST and PEAT and before becoming lignite (COAL). It is composed of a heterogenous mixture of compounds including phenolic radicals and acids that polymerize and are not easily separated nor analyzed. (E.A. Ghabbour & G. Davies, eds. Humic Substances, 2001).
A large family of narrow-leaved herbaceous grasses of the order Cyperales, subclass Commelinidae, class Liliopsida (monocotyledons). Food grains (EDIBLE GRAIN) come from members of this family. RHINITIS, ALLERGIC, SEASONAL can be induced by POLLEN of many of the grasses.
Cultivated plants or agricultural produce such as grain, vegetables, or fruit. (From American Heritage Dictionary, 1982)
The destroying of all forms of life, especially microorganisms, by heat, chemical, or other means.
A process facilitated by specialized bacteria involving the oxidation of ammonium to nitrite and nitrate.
Hospital department which administers and provides pathology services.
A genus of gram-negative, aerobic, rod-shaped bacteria widely distributed in nature. Some species are pathogenic for humans, animals, and plants.
Material coughed up from the lungs and expectorated via the mouth. It contains MUCUS, cellular debris, and microorganisms. It may also contain blood or pus.
A genus of gram-negative, aerobic, coccoid bacteria whose organisms are part of the normal flora of the oropharynx, nasopharynx, and genitourinary tract. Some species are primary pathogens for humans.
The ability of microorganisms, especially bacteria, to resist or to become tolerant to chemotherapeutic agents, antimicrobial agents, or antibiotics. This resistance may be acquired through gene mutation or foreign DNA in transmissible plasmids (R FACTORS).
A class of annelid worms with few setae per segment. It includes the earthworms such as Lumbricus and Eisenia.
A set of statistical methods used to group variables or observations into strongly inter-related subgroups. In epidemiology, it may be used to analyze a closely grouped series of events or cases of disease or other health-related phenomenon with well-defined distribution patterns in relation to time or place or both.
A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Proteins found in any species of bacterium.
A pathologic process consisting in the formation of pus.
Incorrect diagnoses after clinical examination or technical diagnostic procedures.
A large group of aerobic bacteria which show up as pink (negative) when treated by the gram-staining method. This is because the cell walls of gram-negative bacteria are low in peptidoglycan and thus have low affinity for violet stain and high affinity for the pink dye safranine.
The study, utilization, and manipulation of those microorganisms capable of economically producing desirable substances or changes in substances, and the control of undesirable microorganisms.
An agency of the PUBLIC HEALTH SERVICE concerned with the overall planning, promoting, and administering of programs pertaining to maintaining standards of quality of foods, drugs, therapeutic devices, etc.
Liquid by-product of excretion produced in the kidneys, temporarily stored in the bladder until discharge through the URETHRA.
Refuse liquid or waste matter carried off by sewers.
An order of gram-positive, primarily aerobic BACTERIA that tend to form branching filaments.
A genus of yeast-like mitosporic Saccharomycetales fungi characterized by producing yeast cells, mycelia, pseudomycelia, and blastophores. It is commonly part of the normal flora of the skin, mouth, intestinal tract, and vagina, but can cause a variety of infections, including CANDIDIASIS; ONYCHOMYCOSIS; vulvovaginal candidiasis (CANDIDIASIS, VULVOVAGINAL), and thrush (see CANDIDIASIS, ORAL). (From Dorland, 28th ed)
An autosomal recessive genetic disease of the EXOCRINE GLANDS. It is caused by mutations in the gene encoding the CYSTIC FIBROSIS TRANSMEMBRANE CONDUCTANCE REGULATOR expressed in several organs including the LUNG, the PANCREAS, the BILIARY SYSTEM, and the SWEAT GLANDS. Cystic fibrosis is characterized by epithelial secretory dysfunction associated with ductal obstruction resulting in AIRWAY OBSTRUCTION; chronic RESPIRATORY INFECTIONS; PANCREATIC INSUFFICIENCY; maldigestion; salt depletion; and HEAT PROSTRATION.
The routing of water to open or closed areas where it is used for agricultural purposes.
The intergenic DNA segments that are between the ribosomal RNA genes (internal transcribed spacers) and between the tandemly repeated units of rDNA (external transcribed spacers and nontranscribed spacers).
The presence of an infectious agent on instruments, prostheses, or other inanimate articles.
The circulation of nitrogen in nature, consisting of a cycle of biochemical reactions in which atmospheric nitrogen is compounded, dissolved in rain, and deposited in the soil, where it is assimilated and metabolized by bacteria and plants, eventually returning to the atmosphere by bacterial decomposition of organic matter.
Time period from 2001 through 2100 of the common era.
The oval-shaped oral cavity located at the apex of the digestive tract and consisting of two parts: the vestibule and the oral cavity proper.
The genomic analysis of assemblages of organisms.
Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.
Anaerobic degradation of GLUCOSE or other organic nutrients to gain energy in the form of ATP. End products vary depending on organisms, substrates, and enzymatic pathways. Common fermentation products include ETHANOL and LACTIC ACID.
The cycle by which the element carbon is exchanged between organic matter and the earth's physical environment.
A species of gram-negative, aerobic, rod-shaped bacteria commonly isolated from clinical specimens (wound, burn, and urinary tract infections). It is also found widely distributed in soil and water. P. aeruginosa is a major agent of nosocomial infection.
Elements of limited time intervals, contributing to particular results or situations.
A genus of gram-positive, coccoid bacteria consisting of organisms causing variable hemolysis that are normal flora of the intestinal tract. Previously thought to be a member of the genus STREPTOCOCCUS, it is now recognized as a separate genus.
The presence of bacteria in the urine which is normally bacteria-free. These bacteria are from the URINARY TRACT and are not contaminants of the surrounding tissues. Bacteriuria can be symptomatic or asymptomatic. Significant bacteriuria is an indicator of urinary tract infection.
A climate which is typical of equatorial and tropical regions, i.e., one with continually high temperatures with considerable precipitation, at least during part of the year. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
The construction or arrangement of a task so that it may be done with the greatest possible efficiency.
A species of gram-negative, anaerobic, rod-shaped bacteria originally classified within the BACTEROIDES genus. This bacterium is a common commensal in the gingival crevice and is often isolated from cases of gingivitis and other purulent lesions related to the mouth.
INFLAMMATION of the PERITONEUM lining the ABDOMINAL CAVITY as the result of infectious, autoimmune, or chemical processes. Primary peritonitis is due to infection of the PERITONEAL CAVITY via hematogenous or lymphatic spread and without intra-abdominal source. Secondary peritonitis arises from the ABDOMINAL CAVITY itself through RUPTURE or ABSCESS of intra-abdominal organs.
The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms.
The branch of science concerned with the interrelationship of organisms and their ENVIRONMENT, especially as manifested by natural cycles and rhythms, community development and structure, interactions between different kinds of organisms, geographic distributions, and population alterations. (Webster's, 3d ed)
Minute infectious agents whose genomes are composed of DNA or RNA, but not both. They are characterized by a lack of independent metabolism and the inability to replicate outside living host cells.
Physiological processes and properties of microorganisms, including ARCHAEA; BACTERIA; RICKETTSIA; VIRUSES; FUNGI; and others.
The full collection of microbes (bacteria, fungi, virus, etc.) that naturally exist within a particular biological niche such as an organism, soil, a body of water, etc.
Invasion of the host organism by microorganisms that can cause pathological conditions or diseases.
Life or metabolic reactions occurring in an environment containing oxygen.
Procedures for identifying types and strains of fungi.
Divisions of the year according to some regularly recurrent phenomena usually astronomical or climatic. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Sudden increase in the incidence of a disease. The concept includes EPIDEMICS and PANDEMICS.
Electrophoresis in which various denaturant gradients are used to induce nucleic acids to melt at various stages resulting in separation of molecules based on small sequence differences including SNPs. The denaturants used include heat, formamide, and urea.
The functional hereditary units of BACTERIA.
Nitrate reduction process generally mediated by anaerobic bacteria by which nitrogen available to plants is converted to a gaseous form and lost from the soil or water column. It is a part of the nitrogen cycle.
Variation occurring within a species in the presence or length of DNA fragment generated by a specific endonuclease at a specific site in the genome. Such variations are generated by mutations that create or abolish recognition sites for these enzymes or change the length of the fragment.
The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH = log 1/2[1/(H+)], where (H+) is the hydrogen ion concentration in gram equivalents per liter of solution. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The genetic complement of a BACTERIA as represented in its DNA.
A technique for identifying individuals of a species that is based on the uniqueness of their DNA sequence. Uniqueness is determined by identifying which combination of allelic variations occur in the individual at a statistically relevant number of different loci. In forensic studies, RESTRICTION FRAGMENT LENGTH POLYMORPHISM of multiple, highly polymorphic VNTR LOCI or MICROSATELLITE REPEAT loci are analyzed. The number of loci used for the profile depends on the ALLELE FREQUENCY in the population.
The functions, behavior, and activities of bacteria.
A medical specialty concerned with the hypersensitivity of the individual to foreign substances and protection from the resultant infection or disorder.
A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc.
Provision of physical and biological barriers to the dissemination of potentially hazardous biologically active agents (bacteria, viruses, recombinant DNA, etc.). Physical containment involves the use of special equipment, facilities, and procedures to prevent the escape of the agent. Biological containment includes use of immune personnel and the selection of agents and hosts that will minimize the risk should the agent escape the containment facility.
The complete absence, or (loosely) the paucity, of gaseous or dissolved elemental oxygen in a given place or environment. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed)
Infections with bacteria of the family ENTEROBACTERIACEAE.
The inanimate matter of Earth, the structures and properties of this matter, and the processes that affect it.
A method where a culturing surface inoculated with microbe is exposed to small disks containing known amounts of a chemical agent resulting in a zone of inhibition (usually in millimeters) of growth of the microbe corresponding to the susceptibility of the strain to the agent.
A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria whose organisms arrange singly, in pairs, or short chains. This genus is commonly found in the intestinal tract and is an opportunistic pathogen that can give rise to bacteremia, pneumonia, urinary tract and several other types of human infection.
A genus of gram-positive, coccoid bacteria whose organisms occur in pairs or chains. No endospores are produced. Many species exist as commensals or parasites on man or animals with some being highly pathogenic. A few species are saprophytes and occur in the natural environment.
Contamination of the air, bodies of water, or land with substances that are harmful to human health and the environment.
Infections in the inner or external eye caused by microorganisms belonging to several families of bacteria. Some of the more common genera found are Haemophilus, Neisseria, Staphylococcus, Streptococcus, and Chlamydia.
Water particles that fall from the ATMOSPHERE.
Assessments aimed at determining agreement in diagnostic test results among laboratories. Identical survey samples are distributed to participating laboratories, with results stratified according to testing methodologies.
Measurable quantity of bacteria in an object, organism, or organism compartment.
Invasion of the host RESPIRATORY SYSTEM by microorganisms, usually leading to pathological processes or diseases.
Time period from 1701 through 1800 of the common era.
Infections with bacteria of the genus STREPTOCOCCUS.
The simplest saturated hydrocarbon. It is a colorless, flammable gas, slightly soluble in water. It is one of the chief constituents of natural gas and is formed in the decomposition of organic matter. (Grant & Hackh's Chemical Dictionary, 5th ed)
The use of biological agents in TERRORISM. This includes the malevolent use of BACTERIA; VIRUSES; or other BIOLOGICAL TOXINS against people, ANIMALS; or PLANTS.
The persistent eating of nonnutritive substances for a period of at least one month. (DSM-IV)
The relative amounts of the PURINES and PYRIMIDINES in a nucleic acid.
An herbicide with irritant effects on the eye and the gastrointestinal system.
A mass of organic or inorganic solid fragmented material, or the solid fragment itself, that comes from the weathering of rock and is carried by, suspended in, or dropped by air, water, or ice. It refers also to a mass that is accumulated by any other natural agent and that forms in layers on the earth's surface, such as sand, gravel, silt, mud, fill, or loess. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1689)
A general term for single-celled rounded fungi that reproduce by budding. Brewers' and bakers' yeasts are SACCHAROMYCES CEREVISIAE; therapeutic dried yeast is YEAST, DRIED.
Deoxyribonucleic acid that makes up the genetic material of fungi.
A genus of gram-negative, anaerobic, nonsporeforming, nonmotile rods. Organisms of this genus had originally been classified as members of the BACTEROIDES genus but overwhelming biochemical and chemical findings in 1990 indicated the need to separate them from other Bacteroides species, and hence, this new genus was established.
The study of the structure, growth, function, genetics, and reproduction of viruses, and VIRUS DISEASES.
Environments or habitats at the interface between truly terrestrial ecosystems and truly aquatic systems making them different from each yet highly dependent on both. Adaptations to low soil oxygen characterize many wetland species.
A discipline concerned with studying biological phenomena in terms of the chemical and physical interactions of molecules.
Infections with bacteria of the genus PSEUDOMONAS.
A subset of VIRIDANS STREPTOCOCCI, but the species in this group differ in their hemolytic pattern and diseases caused. These species are often beta-hemolytic and produce pyogenic infections.
Inorganic compounds that contain nitrogen as an integral part of the molecule.
The inter- and intra-relationships between various microorganisms. This can include both positive (like SYMBIOSIS) and negative (like ANTIBIOSIS) interactions. Examples include virus - bacteria and bacteria - bacteria.
Naturally occurring complex liquid hydrocarbons which, after distillation, yield combustible fuels, petrochemicals, and lubricants.
Infections resulting from the implantation of prosthetic devices. The infections may be acquired from intraoperative contamination (early) or hematogenously acquired from other sites (late).
A genus of gram-negative bacteria of the family MORAXELLACEAE, found in soil and water and of uncertain pathogenicity.
Enzymes found in many bacteria which catalyze the hydrolysis of the amide bond in the beta-lactam ring. Well known antibiotics destroyed by these enzymes are penicillins and cephalosporins.
Inflammatory responses of the epithelium of the URINARY TRACT to microbial invasions. They are often bacterial infections with associated BACTERIURIA and PYURIA.
Encrustations, formed from microbes (bacteria, algae, fungi, plankton, or protozoa) embedding in extracellular polymers, that adhere to surfaces such as teeth (DENTAL DEPOSITS); PROSTHESES AND IMPLANTS; and catheters. Biofilms are prevented from forming by treating surfaces with DENTIFRICES; DISINFECTANTS; ANTI-INFECTIVE AGENTS; and antifouling agents.
Water containing no significant amounts of salts, such as water from RIVERS and LAKES.
Narrow pieces of material impregnated or covered with a substance used to produce a chemical reaction. The strips are used in detecting, measuring, producing, etc., other substances. (From Dorland, 28th ed)
Mucus-secreting glands situated on the posterior and lateral aspect of the vestibule of the vagina.
Any of several processes for the permanent or long-term artificial or natural capture or removal and storage of carbon dioxide and other forms of carbon, through biological, chemical or physical processes, in a manner that prevents it from being released into the atmosphere.

Effects of dispersed recreational activities on the microbiological quality of forest surface water. (1/5277)

The microbiological quality of forest surface waters in the Greenwater River watershed was examined to investigate the influence of heavy motorized camping in an area with no sanitary facilities. Indicator densities increased during weekend human-use periods when compared to weekdays. Increases in indicator densities were also noted downstream from heavily used camping areas when compared to upstream sites. Seasonal, weekly, and diurnal fluctuations in indicator densities were observed. This study suggests that potential health hazards exist in this watershed during periods of human use.  (+info)

A case of canine salmonellosis due to Salmonella infantis. (2/5277)

A 7-year-old male dog kept outdoors manifested severe watery diarrhea with generalized weakness. Salmonella Infantis was isolated from a fecal sample and the dog recovered soon after medication with ampicillin, to which the isolate was highly sensitive. The present case was diagnosed as S. Infantis infection. Due to the importance of Salmonella in public health, soil samples were collected from the garden where the dog was kept and were examined for Salmonella, Some of them were positive for S. Infantis, however, no Salmonella was isolated from any soil samples collected after thorough disinfection of the surrounded environment.  (+info)

Diversity of rhizobia associated with Amorpha fruticosa isolated from Chinese soils and description of Mesorhizobium amorphae sp. nov. (3/5277)

Fifty-five Chinese isolates from nodules of Amorpha fruticosa were characterized and compared with the type strains of the species and genera of bacteria which form nitrogen-fixing symbioses with leguminous host plants. A polyphasic approach, which included RFLP of PCR-amplified 16S rRNA genes, multilocus enzyme electrophoresis (MLEE), DNA-DNA hybridization, 16S rRNA gene sequencing, electrophoretic plasmid profiles, cross-nodulation and a phenotypic study, was used in the comparative analysis. The isolates originated from several different sites in China and they varied in their phenotypic and genetic characteristics. The majority of the isolates had moderate to slow growth rates, produced acid on YMA and harboured a 930 kb symbiotic plasmid (pSym). Five different RFLP patterns were identified among the 16S rRNA genes of all the isolates. Isolates grouped by PCR-RFLP of the 16S rRNA genes were also separated into groups by variation in MLEE profiles and by DNA-DNA hybridization. A representative isolate from each of these DNA homology groups had a separate position in a phylogenetic tree as determined from sequencing analysis of the 16S rRNA genes. A new species, Mesorhizobium amorphae, is proposed for the majority of the isolates, which belonged to a moderately slow- to slow-growing, acid-producing group based upon their distinct phylogenetic position, their unique electrophoretic type, their low DNA homology with reference strains representing the species within the genus Mesorhizobium and their distinct phenotypic features. Strain ACCC 19665 was chosen as the type strain for M. amorphae sp. nov.  (+info)

Structure of actinotetraose hexatiglate, a unique glucotetraose from an actinomycete bacterium. (4/5277)

An Actinomycete strain A499 belonging to the genera Amycolatopsis or Amycolata isolated from a Western Australian soil sample produced the cyclic decapeptide antibiotic quinaldopeptin (1), together with the actinotetraose hexatiglate (2), the hexa-ester of a novel non-reducing glucotetraose.  (+info)

Characterization of an insertion sequence element associated with genetically diverse plant pathogenic Streptomyces spp. (5/5277)

Streptomycetes are common soil inhabitants, yet few described species are plant pathogens. While the pathogenicity mechanisms remain unclear, previous work identified a gene, nec1, which encodes a putative pathogenicity or virulence factor. nec1 and a neighboring transposase pseudogene, ORFtnp, are conserved among unrelated plant pathogens and absent from nonpathogens. The atypical GC content of nec1 suggests that it was acquired through horizontal transfer events. Our investigation of the genetic organization of regions adjacent to the 3' end of nec1 in Streptomyces scabies 84.34 identified a new insertion sequence (IS) element, IS1629, with homology to other IS elements from prokaryotic animal pathogens. IS1629 is 1,462 bp with 26-bp terminal inverted repeats and encodes a putative 431-amino-acid (aa) transposase. Transposition of IS1629 generates a 10-bp target site duplication. A 77-nucleotide (nt) sequence encompassing the start codon and upstream region of the transposase was identified which could function in the posttranscritpional regulation of transposase synthesis. A functional copy of IS1629 from S. turgidiscabies 94.09 (Hi-C-13) was selected in the transposon trap pCZA126, through its insertion into the lambda cI857 repressor. IS1629 is present in multiple copies in some S. scabies strains and is present in all S. acidiscabies and S. turgidiscabies strains examined. A second copy of IS1629 was identified between ORFtnp and nec1 in S. acidiscabies strains. The diversity of IS1629 hybridization profiles was greatest within S. scabies. IS1629 was absent from the 27 nonpathogenic Streptomyces strains tested. The genetic organization and nucleotide sequence of the nec1-IS1629 region was conserved and identical among representatives of S. acidiscabies and S. turgidiscabies. These findings support our current model for the unidirectional transfer of the ORFtnp-nec1-IS1629 locus from IS1629-containing S. scabies (type II) to S. acidiscabies and S. turgidiscabies.  (+info)

Complete sequence of a 184-kilobase catabolic plasmid from Sphingomonas aromaticivorans F199. (6/5277)

The complete 184,457-bp sequence of the aromatic catabolic plasmid, pNL1, from Sphingomonas aromaticivorans F199 has been determined. A total of 186 open reading frames (ORFs) are predicted to encode proteins, of which 79 are likely directly associated with catabolism or transport of aromatic compounds. Genes that encode enzymes associated with the degradation of biphenyl, naphthalene, m-xylene, and p-cresol are predicted to be distributed among 15 gene clusters. The unusual coclustering of genes associated with different pathways appears to have evolved in response to similarities in biochemical mechanisms required for the degradation of intermediates in different pathways. A putative efflux pump and several hypothetical membrane-associated proteins were identified and predicted to be involved in the transport of aromatic compounds and/or intermediates in catabolism across the cell wall. Several genes associated with integration and recombination, including two group II intron-associated maturases, were identified in the replication region, suggesting that pNL1 is able to undergo integration and excision events with the chromosome and/or other portions of the plasmid. Conjugative transfer of pNL1 to another Sphingomonas sp. was demonstrated, and genes associated with this function were found in two large clusters. Approximately one-third of the ORFs (59 of them) have no obvious homology to known genes.  (+info)

Role of the Trichoderma harzianum endochitinase gene, ech42, in mycoparasitism. (7/5277)

The role of the Trichoderma harzianum endochitinase (Ech42) in mycoparasitism was studied by genetically manipulating the gene that encodes Ech42, ech42. We constructed several transgenic T. harzianum strains carrying multiple copies of ech42 and the corresponding gene disruptants. The level of extracellular endochitinase activity when T. harzianum was grown under inducing conditions increased up to 42-fold in multicopy strains as compared with the wild type, whereas gene disruptants exhibited practically no activity. The densities of chitin labeling of Rhizoctonia solani cell walls, after interactions with gene disruptants were not statistically significantly different than the density of chitin labeling after interactions with the wild type. Finally, no major differences in the efficacies of the strains generated as biocontrol agents against R. solani or Sclerotium rolfsii were observed in greenhouse experiments.  (+info)

Effect of phenylurea herbicides on soil microbial communities estimated by analysis of 16S rRNA gene fingerprints and community-level physiological profiles. (8/5277)

The effect of three phenyl urea herbicides (diuron, linuron, and chlorotoluron) on soil microbial communities was studied by using soil samples with a 10-year history of treatment. Denaturing gradient gel electrophoresis (DGGE) was used for the analysis of 16S rRNA genes (16S rDNA). The degree of similarity between the 16S rDNA profiles of the communities was quantified by numerically analysing the DGGE band patterns. Similarity dendrograms showed that the microbial community structures of the herbicide-treated and nontreated soils were significantly different. Moreover, the bacterial diversity seemed to decrease in soils treated with urea herbicides, and sequence determination of several DGGE fragments showed that the most affected species in the soils treated with diuron and linuron belonged to an uncultivated bacterial group. As well as the 16S rDNA fingerprints, the substrate utilization patterns of the microbial communities were compared. Principal-component analysis performed on BIOLOG data showed that the functional abilities of the soil microbial communities were altered by the application of the herbicides. In addition, enrichment cultures of the different soils in medium with the urea herbicides as the sole carbon and nitrogen source showed that there was no difference between treated and nontreated soil in the rate of transformation of diuron and chlorotoluron but that there was a strong difference in the case of linuron. In the enrichment cultures with linuron-treated soil, linuron disappeared completely after 1 week whereas no significant transformation was observed in cultures inoculated with nontreated soil even after 4 weeks. In conclusion, this study showed that both the structure and metabolic potential of soil microbial communities were clearly affected by a long-term application of urea herbicides.  (+info)

Tropical forests are vital global reservoirs of biodiversity and carbon (C). Deforestation and degradation of these ecosystems greatly threatens their capacity to provide crucial ecosystem functions and services, by altering complex plant-soil interactions and biogeochemical cycles underpinned by soil microbes. Forest disturbance is accelerating in Southeast Asia, through widespread selective logging (SL) and forest conversion to oil palm plantation (OP). This has major implications for soil microbial communities and functions, although effects of tropical forest disturbance on belowground biodiversity and the resistance and resilience of soil microbial nutrient and C-cycling are unresolved. The potential to restore soil microbial communities and essential functions is also largely unknown. The aim of this thesis was to evaluate impacts of tropical forest modification (degradation, conversion and restoration) on soil microbial community attributes, and implications for ecosystem biogeochemical ...
This project aims to map African soil microbiome and develop predictive toolkits based on soil microbiota and physico-chemical characteristics of soil to assess soil fertility and health. It will determine factors that influence microbial diversity and community structure in continentwide scale. This project will generate important knowledge on African soil microbiome and it will bridge current farming practices with the biotechnology industry, government agencies, and academia, and will fill the gaps between basic research and large-scale agricultural applications. At the same time, it will provide evidence of the economic and environmental benefits of improving predictive tools for assessing soil fertility and develop an index of soil microbiota richness that will improve fertilization recommendation in agroecosystems.. We are seeking highly motivated candidates with metagenomics, bioinformatics and biostatistics background or related fields. As the solution for such complex problem will ...
Sugarcane cultivation plays an important role in Brazilian economy, and it is expanding fast, mainly due to the increasing demand for ethanol production. In order to understand the impact of sugarcane cultivation and management, we studied sugarcane under different management regimes (pre-harvest burn and mechanical, unburnt harvest, or green cane), next to a control treatment with native vegetation. The soil bacterial community structure (including an evaluation of the diversity of the ammonia oxidizing (amoA) and denitrifying (nirK) genes), greenhouse gas flow and several soil physicochemical properties were evaluated. Our results indicate that sugarcane cultivation in this region resulted in changes in several soil properties. Moreover, such changes are reflected in the soil microbiota. No significant influence of soil management on greenhouse gas fluxes was found. However, we did find a relationship between the biological changes and the dynamics of soil nutrients. In particular, the burnt cane and
Previously... Re: [SANET-MG] Beneficial Soil Microbia] The question is how to get information on IM or IMOs, Indigenous Microorganisms. Well, there is a seminar on Indigenous Microorganisms at the Ecological Farming Conference in California, Jan. 22-25. Gil Carandang, a farmer from the Phillipines, will demonstrate some of the special cultures. Concepts and practices on Indigenous Microorganisms, IM or IMO, originate with Han Kyu Cho and the Korean Natural Farming Association, or KNFA, going back 35 to 40 years. Yet, this knowledge has only come into English language in the last few years. There is one book in English, yet it is not available for-sale from any distributor that I can determine. Korean Natural Farming: Indigenous Microorganisms and Vital Power of Crop/Livestock Han Kyu Cho and Atsushi Koyama Korean Natural Farming Association, 1997. 172 p. Here is an address for KNFA: Korean Natural Farming Association (KNFA) 209-2 Woongok-ri, ...
div, The Gemmatimonadetes are a family of bacteria, given their own phylum (Gemmatimonadetes). This bacterium makes up about 2% of soil bacterial communities and has been identified as one of the top nine phyla found in soils; yet, there are currently only six cultured isolates.[1] Gemmatimonadetes have been found in a variety of arid soils, such as grassland, prairie, and pasture soil, as well as eutrophic lake sediments and alpine soils. This wide range of environments where Gemmatimonadetes have been found suggests an adaptation to low soil moisture.[2] A study conducted showed that the distribution of the Gemmatimonadetes in soil tends to be more dependent on the moisture availability than aggregation, reinforcing the belief that the members of this phylum prefer dryer soils.[3] The phylum Gemmatimonadetes is distinct from the phylum Cyanobacteria and may have diverged in early microbial evolution at least 3 billion years ago.[4] The first member of this phylum was discovered in 2003 in ...
The effects of monoterpenes on the degradation of 14C-2,4-dichlorophenol (DCP) were investigated in soils collected from areas surrounding monoterpene and non-monoterpene emitting vegetation. Indigenous microorganisms degraded 14C-2,4-DCP to 14CO2, after 1 d contact time. Degradation was enhanced by prior exposure of the soils to 2,4-DCP for 32 d, increasing mineralization extents up to 60%. Monoterpene amendments further enhanced 2,4-DCP degradation, but only following pre-exposure to both 2,4-DCP and monoterpene, with total 2,4-DCP mineralisation extents of up to 71%. Degradation was greatest at the higher monoterpene concentrations (≥ 1 μg kg-1). Total mineralisation extents were similar between concentrations, but higher than the control and the 0.1 μg kg-1 amendment, indicating that increases in monoterpene concentration has a diminishing enhancing effect. We suggest that monoterpenes can stimulate the biodegradation of 2,4-DCP by indigenous soil microorganisms and that monoterpene ...
Background: Microbial inhabitants of soils are important to ecosystem and planetary functions, yet there are large gaps in our knowledge of their diversity and ecology. The Biomes of Australian Soil Environments (BASE) project has generated a database of microbial diversity with associated metadata across extensive environmental gradients at continental scale. As the characterisation of microbes rapidly expands, the BASE database provides an evolving platform for interrogating and integrating microbial diversity and function.. Findings: BASE currently provides amplicon sequences and associated contextual data for over 900 sites encompassing all Australian states and territories, a wide variety of bioregions, vegetation and land-use types. Amplicons target bacteria, archaea and general and fungal-specific eukaryotes. The growing database will soon include metagenomics data. Data are provided in both raw sequence (FASTQ) and analysed OTU table formats and are accessed via the projects data ...
Novel technologies continue to expand our understanding of microbial diversity and community structure. Metagenomic analysis [10, 45] has previously identified unexpectedly high bacterial phylogenetic and functional diversity. The long-term sustainability of soil contamination requires detailed knowledge of its biodiversity coupled to profound understanding for its functioning. Previous studies with 16S rRNA-based analyses using clone libraries [46-48], microarrays (for example, PhyloChip and GeoChip) [49-52], pyrosequencing [7, 53] and other approaches [54] showed that soil microbial communities are highly diverse and complex.. Here, we took opportunity to explore microbial diversity and its functioning in edible oil contaminated soil using 16S rRNA shotgun sequencing approach. This study provides a comprehensive survey of the microbial richness and composition of long-term oil contaminated soil microbial communities. Upon taxonomic analysis using different approaches (RDP classifier and LCA ...
Soil microbial process tests evaluate the native soil microbial communities exposed to the substance. From the database of cobalt toxicity to micro-organisms, there are 28 individual high quality NOEC/EC10 values evaluating 3 functional parameters (potential nitrification rate, glucose induced respiration and maize residue mineralization) from 10 natural soils collected from sites in Europe and North America. When expressed as added soil Co, these endpoints range from 5.5 mg Co/kg dw for Glucose induced respiration (Salpeteur et al, University of Leuven, 2007) to 4695 mg Co/kg dw for Maize residue respiration (Salpeteur et al, University of Leuven, 2007). Below are the accepted high quality studies for soil microorganisms used for derivation of the HC5 and terrestrial PNEC. Table X. High quality studies for soil microorganisms used for derivation of the HC5 and soil microorganism PNEC ...
This will be 2nd outdoor grow. I was wondering if I could reuse the same soil mix I used last year thats sitting in my grow bags (100 gal) or do I...
Soil microorganisms and their interactions The soil is considered as the land surface of the earth which provides the substratum for plant and animal life. The soil represents a favourable...
Compartmentalization of PDGF on extracellular binding sites dependent on exon-6-encoded sequences. Inclusion of methionine-S35 into liver slices of rats with alloxan diabetes in a medium containing glucose generic cialis or fructose Hence, fluopyram has a harmful effect on overall soil microbial activity, and tadalafil 20 mg rezeptfrei bestellen changed soil microbial community structure and function. Six males with type 2 diabetes mellitus and eight healthy controls were included.. Long sleep duration: a nonconventional indicator of arterial stiffness in Japanese at high risk of cardiovascular disease: side effects of cialis the J-HOP study. How does the number of susceptible cells influence the growth potential of the virus?. The presence of an osseous spur on the dorsoproximal aspect of MtIII in the absence of other radiological abnormalities may be an incidental finding. AfsR recruits tadalafil 5mg RNA polymerase to the afsS promoter: a model for transcriptional activation by SARPs. The ...
SUMMARY: The lipids of soil micro-organisms harvested from simple and complex media varied from 2 to 20% in bacteria, 10 to 20% in fungi, 2·5 to 15% (w/w) in algae. The bulk of the lipid usually consisted of polar compounds; paraffinic hydrocarbons comprised 0·008 to 2·7% in bacteria, 0·04 to 0·7% in fungi, 0·08 to 2·9% (w/w) in algae. Lipid contents of algae were more affected by growth medium composition than were those of the bacteria and fungi. Gas-liquid chromatography showed that the hydrocarbons were paraffins in the range C16-36. The hydrocarbon patterns varied with species and growth medium. A peak in the range C27-31 was usual in bacteria with sometimes a minor peak in the range C18-22. The fungi exhibited slightly more stable hydrocarbon patterns (except Trichoderma viride) than bacteria and most showed major and minor paraffin peaks in similar regions. The algae showed a peak at C17 regardless of the growth medium but Tetraspora gelatinosa showed an increase in C25 and C27 paraffin
Photosynthesis and decomposition are two fundamental and interconnected components of terrestrial biogeochemical cycles, and large variations in Carbon model projections are due to uncertainties surrounding these parameters. Although foliar Nitrogen and soil microbial activities exert key constraints on plant productivity and decomposition, these variables are seldom included in modeling endeavors because we lack robust methodologies to estimate these parameters across ecosystems. This research demonstrates how advances in remote sensing technologies and machine learning analytical approaches can overcome this limitation and help us understand the distribution and controls of foliar Nitrogen and microbial community biomass and exoenzyme activities across large spatial areas. I used airborne imaging spectroscopy data, provided by The National Ecological Observatory Network (NEON), combined with 475 samples collected across the U.S. to develop generalizable models for the prediction of foliar ...
Purchase Interactions Between Non-Pathogenic Soil Microorganisms And Plants - 1st Edition. Print Book & E-Book. ISBN 9780444416384, 9780444601339
TY - JOUR. T1 - Geochemically generated, energy-rich substrates and indigenous microorganisms in deep, ancient groundwater. AU - Kieft, Thomas L.. AU - McCuddy, Sean M.. AU - Onstott, Tullis C.. AU - Davidson, Mark. AU - Lin, Li Hung. AU - Mislowack, Bianca. AU - Pratt, Lisa. AU - Boice, Erik. AU - Lollar, Barbara Sherwood. AU - Lippmann-Pipke, Johanna. AU - Pfiffner, Susan M.. AU - Phelps, Tommy J.. AU - Gihring, Thomas. AU - Moser, Duane. AU - van Heerden, Arnand. N1 - Funding Information: This research was supported by National Science Foundation LExEn program grant EAR-9978267 with supplemental funds from the NASA Astrobiology Institute to Princeton University (T. C. Onstott) and by National Geographic Society grant 6339-98 to T. C. Onstott for travel support. We are grateful to T. Hewitt and J. van Eden of Kloof Mine and R. Wilson of Turgis Technology for logistical support in obtaining samples from Kloof Mine.. PY - 2005/9. Y1 - 2005/9. N2 - Recent studies have shown that the biosphere ...
Fingerprint Dive into the research topics of Measuring respiration profiles of soil microbial communities across Europe using MicroResp™ method. Together they form a unique fingerprint. ...
Methods: The researchers examined 18 different antibiotics ranging from natural, semi-synthetic to synthetic which could target a wide range of bacterial families and included ciprofloxacin, penicillin and kanamycin which are some of the more commonly prescribed antibiotics in medicine. Seventy-five bacterial samples were isolated from 11 diverse soil samples ranging from farm soil (cornfields fertilised with manure from cows fed with antibiotics), urban soil and pristine soil (untouched forest areas). This method ensured that the bacteria were isolated from areas with varying degrees of exposure to human-made antibiotics. More than half of the samples included bacteria from the phylogenetic order of Burkholderiales and Pseudomonadales, both capable of inflicting disease in humans. Two antibiotic concentrations (20 mg/L and 1 g/L) were tested with one concentration (1 g/L) being 50 times greater than standard antibiotic resistance concentrations ...
Getting ready to plant your vegetable garden? Youll want to test your vegetable garden soil for nutrients, soil pH levels and the presence of toxins.
A nitrogen transformation test according to test guideline OECD 216 has been performed to examined soil microorganisms. Test substance concentrations up to 1000 mg/kg sdw has been incorporated into natural soil and the soil microorganisms were exposed for 28 days. After 28 days of exposure, a significant inhibition of the microbial nitrate transformation was observed for the test item concentrations 250, 500 and 1000 mg/kg soil dry weight. The no effect level (NOEC) has been determined to be 125 mg/kg sdw after 28 days exposure. The EC10 value for inhibition of the nitrate-N formation rate in soil has been calculated to 237 mg/kg sdw , the EC25 value has been 361 mg/kg sdw and the EC50 value has been determined to be 528 mg/kg sdw after 28 days. ...
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Paul, E. A. 2015. Soil microbiology, ecology, and biochemistry: An exciting present and great future built on basic knowledge and unifying concepts. Pages 1-14 in E. A. Paul, ed. Soil microbiology, ecology, and biochemistry. Academic Press, San Diego, CA ...
Read Online Principles And Applications Of Soil Microbiology Free eBook or Download Full Principles And Applications Of Soil Microbiology Textbook PDF, EPUB, Tu
Title: Uncultured soil bacterium clone SoilA-18 16S ribosomal RNA gene, partial sequence. Accession Number: DQ906983. Link to Dataset: Repository: GenBank. Data Type(s): Nucleotide Sequence. Experiment Type(s): Genomic DNA. Organism(s): Bacteria. Summary: Uncultured soil bacterium clone SoilA-18 16S ribosomal RNA gene, partial sequence. Publication(s) associated with this dataset: h4.sbrppubs { padding: 0 5px 2px 5px; border-bottom: 1px solid #bfbeb5; margin: 1px 0 10px 0; text-align: left; } .pubs li { padding-bottom: 14px; } .pubs li img { border: 0px; } ...
The quality of your garden soil will contribute 50% to the success of your gardening business. Dont overlook its importance. Find out all you need to know
The taxonomic position of a soil isolate, strain E626, was evaluated using the polyphasic approach. The organism was found to have chemical and morphological features consistent with its assignment to
Addition of plant residue into soils improves soil physiochemical properties and its fertility. Rapeseed residue is an emerging N source to paddy soils via rice-rape double-cropping practice. The objective of this study was to evaluate the effects of rapeseed residue and eggshell waste on chemical changes and enzyme activity in the rice paddy soil. The powdered eggshells at 0, 1, 3, and 5% were ap ...
Can anybody suggest good website for soil microbiology or any experts around??? As I am specializing in biofertilizers I would like to have some information regd the same thanx bye ...
Dirt microorganisms play key tasks in ecosystem functioning and are known to be influenced by biotic and abiotic factors, such as flower cover or edaphic guidelines. large proportion of Ascomycota phylum (fungi), mostly in non-rainforest formations, and Planctomycetes phylum (bacteria) in all formations were observed. Interestingly, such patterns could be indicators of past disturbances that occurred on different time scales. Furthermore, the bacteria and fungi were affected by varied edaphic parameters as well as from the interplay between these two soil areas. Another striking getting was the living of a site effect. Variations in microbial areas between geographical locations may be explained by dispersal limitation in the context of the biogeographical island theory. In conclusion, each plant formation at each site possesses is certainly very own microbial community caused by multiple connections between abiotic and biotic elements. Introduction Garden soil microorganisms play essential jobs ...
Dirt microorganisms play key tasks in ecosystem functioning and are known to be influenced by biotic and abiotic factors, such as flower cover or edaphic guidelines. large proportion of Ascomycota phylum (fungi), mostly in non-rainforest formations, and Planctomycetes phylum (bacteria) in all formations were observed. Interestingly, such patterns could be indicators of past disturbances that occurred on different time scales. Furthermore, the bacteria and fungi were affected by varied edaphic parameters as well as from the interplay between these two soil areas. Another striking getting was the living of a site effect. Variations in microbial areas between geographical locations may be explained by dispersal limitation in the context of the biogeographical island theory. In conclusion, each plant formation at each site possesses is certainly very own microbial community caused by multiple connections between abiotic and biotic elements. Introduction Garden soil microorganisms play essential jobs ...
Iqbal and Ashraf. 2017. Rhizobacteria play an important role in plant defense and could be promising sources of biocontrol agents. Antagonism between soil microorganisms is a common phenomenon.
Understand how subsurface drainage affects crops and your farms soil system. Covers soil water, water balance and other key concepts.
Sigma-Aldrich offers abstracts and full-text articles by [Xu-Hong Gao, Sheng Gao, Yu Zhou, Hui-Lin Guan, Yun-Jiao Zhang, Man Jia, Hua-Wei Huang, Dong-Xu Yang, Wen-Jun Li, Shu-Kun Tang].
Flavonoid compounds produced by the roots of some sorghum plants positively affect soil microorganisms, which may help the crop to be more hardy, according to researchers who suggest the discovery is an early step in developing a frost-resistant line of the valuable crop for North American farmers.
Toxicity data are only available or terrestrial micro-organisms . They showed at the end of an exposure duration of 28 days no significant inhibition of the respiration rate of soil micro-organism. No toxicity data on terrestrial macro-organisms, arthropods and plants are available. However, the substance shows a low adsorptive (log Koc = 0.94 - 1.86) as well as a low bioaccumulative (log Pow = 1.38) potential. Thus, a significant distribution into soil and a considerable exposure of terrestrial organisms is not expected. ...
also a known degrader of PAHs, however, was lower. Weighted and unweighted PCoA with UniFrac indicated that phylotypes were similar in the different treatments at day 0, but changed at day 1. After 14 days, phylotypes in the unamended and acetone-amended soil were similar, but different from those in the anthracene-spiked soil ...
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You are a graduate student working on a followship for a biotech companny .You are part of a group that will perform some scientiific research. You recieve various soil samples shipped to you from.
Its also available on Vimeo, but not on you tube. The guys named Doug Weatherbee. Why is it not on You tube? , I dont know. I hope you like it ...
You and your children will learn the basic principles of composting, build a compost container, and maintain the compost pile for a home-grown supply of free, organic compost to enrich your garden soil.
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Agricultural systems rely on healthy soils and their sustainability requires understanding the long-term impacts of agricultural practices on soils, including microbial communities. We examined the impact of 17 years of land management on soil bacterial communities in a New Zealand randomized-block pasture trial. Significant variation in bacterial community structure related to mowing and plant biomass removal, while nitrogen fertilizer had no effect. Changes in soil chemistry and legume abundance described 52% of the observed variation in the bacterial community structure. Legumes (Trifolium species) were absent in unmanaged plots but increased in abundance with management intensity; 11% of the variation in soil bacterial community structure was attributed to this shift in the plant community. Olsen P explained 10% of the observed heterogeneity, which is likely due to persistent biomass removal resulting in P limitation; Olsen P was significantly lower in plots with biomass removed (14 mg ...
The increasing temperature in Arctic tundra deepens the active layer, which is the upper layer of permafrost soil that experiences repeated thawing and freezing. The increasing of soil temperature and the deepening of active layer seem to affect soil microbial communities. Therefore, information on soil microbial communities at various soil depths is essential to understand their potential responses to climate change in the active layer soil. We investigated the community structure of soil bacteria in the active layer from moist acidic tundra in Council, Alaska. We also interpreted their relationship with some relevant soil physicochemical characteristics along soil depth with a fine scale (5 cm depth interval). The bacterial community structure was found to change along soil depth. The relative abundances of Acidobacteria, Gammaproteobacteria, Planctomycetes, and candidate phylum WPS-2 rapidly decreased with soil depth, while those of Bacteroidetes, Chloroflexi, Gemmatimonadetes, and candidate ...
The aim of this study was to evaluate a measuring technique for determining soil CO2 efflux from large soil samples having undisturbed structure under controlled laboratory conditions. Further objectives were to use the developed measuring method for comparing soil CO2 efflux from samples, collected in three different soil management systems at various soil water content values. The experimental technique was tested and optimised for timing of sampling by taking air samples after 1, 3 and 6 hours of incubation. Based on the results, the incubation time was set to three hours. The CO2 efflux measured for different soil management systems was the highest in the no-till and the lowest in the ploughing treatment, which was in accordance with measurements on accessible organic carbon for microbes. An increase in CO2 efflux with increasing soil water content was found in the studied soil water content range. Our results indicate that soil respiration rates, measured directly after tillage operations, ...
tags) Want more? 14 from Soil Microbiology and Biochemistry Slide Set. Horizon A), the microbial population is very high which decreases with depth of soil Soil microorganisms played a very important role in improving the soil fertility and productivity. Janice E. Thies, in Soil Microbiology, Ecology and Biochemistry (Fourth Edition), 2015. They are responsible for the characteristically earthy smell of freshly turned, healthy soil. In soil microbiology it was realised that simply extracting soils and counting microorganisms is not enough to characterise the soil microbiota and its significance for the functioning of soils e.g., Macura, 1974 . 14 from Soil Microbiology and Biochemistry Slide Set. Get powerful tools for managing your contents. • Dead forms of organic material - mostly dead plant parts (85%) • Living parts of plants - mostly roots (10%) • Living microbes and soil animals • Partly decayed organic matter is called humus Components of Soil Organic Matter. Unformatted text ...
Crop production requires adequate soil nitrogen; therefore a false conclusion may be made from only measuring carbon dioxide as a soil health indicator. In this study, one might conclude that sod was the most productive soil according to the field respiration test. However, soil nitrogen levels were the lowest in the sod treatment. This would result in poor crop performance. Soil health reports are needed that include nutrient levels, especially soil nitrogen. Soil conservation practices such as reduced tillage and cover crops have the ability to improve soil productivity. If farmers can measure these soil health improvements and the measurements correlate to crop production increases, then soil conservation will be practiced. The effect of soil moisture and temperature on soil nitrate, ammonium, and carbon dioxide can determine the accuracy of prediction for nitrogen availability (Clark, 2007). A soil health test conducted by V6 growth stage would be useful in corn production to allow farmers ...
Relationship of microbial activity and abundance to soil properties in Yucatan SDTF.Due to the lower water supply, SDTFs usually have a lower decomposition rate (25), higher soil C and N concentrations (33), and a more open N cycle (characterized by high N inputs and losses) than their wet counterparts (34). These properties can explain why the organic C contents found in these soils are larger than values reported for any other tropical soil (35). These soils also contain variable amounts of organic matter, which are in the same range as those reported for other Yucatan forest soils (27, 31). Furthermore, the experimental plots are found in nutrient-poor areas because of the regions recent geological origin, where karstic substrate dominates the landscape (30). In particular, recent studies have documented that karst soils contain abundant organic matter, which is mainly stored in the soil surface (36, 37). In addition, the karstic soils of the Yucatan have high potential to form aggregates ...
Atmospheric gas scavenging has been implicated as a strategy for microbial survival. Members of the Acidobacteria, along with other diverse soil microorganisms are capable of atmospheric dihydrogen oxidation, which has important implications in atmospheric chemistry, microbial ecology and survival.
How soil microbes assimilate carbon-C, nitrogen-N, phosphorus-P, and sulfur-S is fundamental for understanding nutrient cycling in terrestrial ecosystems. We compiled a global database of C, N, P, and S concentrations in soils and microbes and developed relationships between them by using a power function model. The C:N:P:S was estimated to be 287:17:1:0.8 for soils, and 42:6:1:0.4 for microbes. We found a convergence of the relationships between elements in soils and in soil microbial biomass across C, N, P, and S. The element concentrations in soil microbial biomass follow a homeostatic regulation curve with soil element concentrations across C, N, P and S, implying a unifying mechanism of microbial assimilating soil elements. This correlation explains the well-constrained C:N:P:S stoichiometry with a slightly larger variation in soils than in microbial biomass. Meanwhile, it is estimated that the minimum requirements of soil elements for soil microbes are 0.8 mmol C Kg -1 dry soil, 0.1 mmol N ...
1. Bissett, Andrew, Alan E. Richardson, Geoff Baker, and Peter H. Thrall. Long-ter Land Use Effects on Soil Microbial Community Structure and Function. Applied Sol Ecology 51 (2011): 66-78. Print. 2. Bonkowski, Michael. Protozoa and Plant Growth: The Microbial Loop in Soil Revisited. New Phytologist 162.3 (2004): 617-31. Print. 3. Coleman, D. C. The Microbial Loop Concept as Used in Terrestrial Soil Ecology Studies. Microbial Ecology 28.2 (1994): 245-50. Print. 4. Ingham, Elaine R. Soil Biology. NRCS - Soil Quality / Soil Health. USDA, n.d. Web. 07 Apr. 2013. 5. Krumins, Jennifer A., Dick Van Oevelen, and Martinjn T. Bezemer. Soil and Freshwater and Marine Sediment Food Webs: Their Structure and Function. BioScience 63.1 (2013): 35-42. Print. 6. Powell, Jeff R. Linking Soil Organisms within Food Webs to Ecosystem Functioning and Environmental Change. Advances in Agronomy 96 (2007): 307-50. AGRICOLA. Web. 01 Apr. 2013. ...
1. Bissett, Andrew, Alan E. Richardson, Geoff Baker, and Peter H. Thrall. Long-ter Land Use Effects on Soil Microbial Community Structure and Function. Applied Sol Ecology 51 (2011): 66-78. Print. 2. Bonkowski, Michael. Protozoa and Plant Growth: The Microbial Loop in Soil Revisited. New Phytologist 162.3 (2004): 617-31. Print. 3. Coleman, D. C. The Microbial Loop Concept as Used in Terrestrial Soil Ecology Studies. Microbial Ecology 28.2 (1994): 245-50. Print. 4. Ingham, Elaine R. Soil Biology. NRCS - Soil Quality / Soil Health. USDA, n.d. Web. 07 Apr. 2013. 5. Krumins, Jennifer A., Dick Van Oevelen, and Martinjn T. Bezemer. Soil and Freshwater and Marine Sediment Food Webs: Their Structure and Function. BioScience 63.1 (2013): 35-42. Print. 6. Powell, Jeff R. Linking Soil Organisms within Food Webs to Ecosystem Functioning and Environmental Change. Advances in Agronomy 96 (2007): 307-50. AGRICOLA. Web. 01 Apr. 2013. ...
The plan released today lays out a series of goals for its action teams (or committees) to tackle. Beth Mason, NACDs North Central Region representative and Soil Health Champions Network lead, serves as co-chair on the groups Communications and Education Action Team alongside Ron Nichols, soil health communications coordinator for NRCS.. Each of SHIs goals fall under a general category. For instance, under Research, SHI proposes to enhance agricultural productivity and resilience through improved soil health by optimizing soils water holding capacity, water infiltration, and plant nutrient availability, and suppressing soil-borne diseases through soil health management systems. Its second research goal aims to quantify the environmental and human health benefits that result from improved soil health.. The group has also set out to determine how best to design and conduct large-scale soil health assessments, such as a National Soil Health Assessment. Other goals included quantifying the ...
Introduction. The decline of soil organic matter as a result of agricultural land use was identified for review, with the ultimate aim of developing a soil protection strategy and policy for South Africa. Organic matter is of great importance in soil, because it impacts on the physical, chemical and biological properties of soils. Physically, it promotes aggregate stability and therefore water infiltration, percolation and retention. It impacts on soil chemistry by increasing cation exchange capacity, soil buffer capacity and nutrient supply. Biologically, it stimulates the activity and diversity of organisms in soil.1. The organic matter content of soils is determined mainly by climate (rainfall and temperature), vegetation cover and, to a lesser extent, by topography, parent material and time. Changes in land use, however, can significantly impact on the organic matter content of soils. This impact usually results in the reduction of the organic matter content in soils. The largest of these ...
Soil samples (0-60 cm) were collected from poplar based agro-forestry system varying in age from 2-20 years to study changes in total soil organic C (SOC), available phosphorus (P) and potassium (K). Soil plough layer (0-15 cm) had significantly higher SOC concentration by 34, 61 and 83%, compared with 15-30, 30-45 and 45-60 cm soil depths, respectively. Soil organic C decreased significantly with increasing soil depth, regardless of the age of poplar plantation period. The concentration of available-P and K was significantly higher in the surface soil, and decreased with increasing soil depth. Available-P increased significantly (p|0.05) by 16.3-17.7% and available-K by 36.5-52.4% in soil plough layer (0-15 cm) under agro-forestry for 20-yrs, compared with soils under agro-forestry for 2-yrs. Soils under 20-yrs old agro-forestry system had 39.8% and 50.6% higher SOC in 0-7.5 cm and 7.5-15 cm soil depth, compared with soils under 2-yrs old plantation. These results revealed C and nutrients (P and K)
For this lab sandy soil can be obtained at a nursery. This soil will be labeled potting soil for Succulents, which typically grow in sandier soils. Loamy soil can be substituted with regular potting soil. Clay soil will have to be dug from a local source. If the soil is not a red or orange color, it may still have a lot of clay in it. High clay content soil, when wet, can be squeezed and it will retain the shape without falling apart. It also has a slimy quality when wet. This is the element of soil that makes it really stick to your boots. If you live in an area where you have good soil, digging down below the top soil usually results in a larger clay content as the clay particles tend to move down through the soil over time and compact deeper in the earth (its like the crumbs at the bottom of a bag of potato chips ...
Soils can vary on the same property. An easy way to identify your soil type is to fill a small jar with soil from your yard, shake it, and let the soil settle overnight. The following day you should notice distinct soil layers. Sandy soil tends to settle at the bottom, clay at the top, and silt in the middle.. Why Does Soil Matter?. Soil performs five essential functions; using the wrong type of soil or unhealthy soil can impede tree health by constricting roots from accessing the water and nutrients necessary. Soil helps regulate water, supports biodiversity, filters pollutants, provides physical support, and cycles nutrients. You can understand why attempting to plant a tree that requires less soil saturation may not thrive if its planted in silt or clay soil. Trees show signs of stress, possible signs that the soil isnt healthy include leaf discoloration, brittle limbs, and even stunted tree growth.. Its also important to dig a hole deep enough for tree roots to grow. Planting in shallow ...
Effects of trampling of a wet dairy pasture soil on soil porosity and on mitigation of nitrous oxide emissions by a nitrification inhibitor, ...
Years of measurements have produced a lot of information on soil respiration. We know more or less how the respiration rate is related to changing environmental conditions, as plant respiration and soil respiration follows temperature exponentially. Approximately, respiration rates doubles for every 10°C increase in temperature. Soil water availability (REW) further regulates the respiration.. REW stands for Relative Extractable Water, and it refers to the amount of water in the soil available to plants and soil microfauna. Soil microbes that decompose soil organic matter function in soil water. In drying soil, the microbes have more difficulty accessing soil organic matter and the decomposition process gets slower. Root respiration also declines in very dry soil.. The effects of soil temperature and moisture can be expressed as a simple mathematical equation:. R = Max { 0 , f(REW) * r0 * q10T/10 - cr }. R stands for respiration expressed as the resulting carbon, r0 =1.1 µmol m-2 s-1, ...
First and foremost, we need to disturb soil less. The advent of no-till and reduced tillage methods have allowed us to increase the carbon content of soils.. No-till and direct-seeding methods place the seed directly into the soil, minimizing the disturbance associated with seedbed preparation. The lack of disturbance allows the roots and crop residues from the previous crops to form soil organic matter. It reduces the degradation of the soil organic matter already present in the soil.. In Canada, we are already benefiting from reduced tillage. In the Prairies, no-tillage agriculture has increased from less than five per cent of the land area in the early 1990s to almost 50 per cent in 2006.. The situation is a bit more complex in Eastern Canada. The regions soil type and climate make it less easy to build soil organic matter. At Dalhousies Atlantic Soil Health Lab, we are exploring the potential of various cropping practices to increase soil organic matter content in the soils of Atlantic ...
Soil Analysis: An Interpretation Manual is a practical guide to soil tests. It considers what soil tests are, when they can be used reliably and consistently, and discusses what limits their application. It is the first nationally accepted publication that is appropriate for Australian soils and conditions. The first three chapters review the general principles and concepts of soil testing, factors affecting soil test interpretation and soil sampling and handling procedures. The next two chapters describe morphological indicators of soil and include colour plates of major Australian agricultural soils. These are followed by a series of chapters which present soil test calibration data for individual elements or a related group of tests such as the range of soil tests used to interpret soil acidity. Each of these chapters also summarises the reactions of the particular element or parameter in the soil and describes the tests commonly used in Australia. The final chapter presents a structured ...
As a PhD student in the Department of Plant Pathology, I recently attended the Tilth Conference in Wenatchee, which provided me the opportunity to hear great presentations and spark my thinking on the topic of microbiomes. I am currently working on Brassica seed meal amendments for suppressing apple replant disease under the supervision of Dr. Mark Mazzola. Several presentations, including one by Dr. Mazzola, were inspiring to me at the conference.. Soil is the living thin skin of our planet, said Dr. David Granatstein in his presentation. Farmers care a lot about their soils and they are eager to figure out what factors contribute to a healthy soil. It is not an easy question since there is not a single model that fits everything. Soil health can be related to several factors, such as disease suppression, plant access to the water and access to nutrients. Carbon and organic matter are also important elements in the soil system that contribute to the support of a microbiome that is relatively ...
This study investigated the microbial degradation of C-14-labelled hexadecane, octacosane, phenanthrene and pyrene and considered how degradation might be optimised in three genuinely hydrocarbon-contaminated soils from former petroleum refinery sites. Hydrocarbon mineralisation by the indigenous microbial community was monitored over 23 d. Hydrocarbon mineralisation enhancement by nutrient amendment (biostimulation), hydrocarbon degrader addition (bioaugmentation) and combined nutrient and degrader amendment, was also explored. The ability of indigenous soil microflora to mineralise C-14-target hydrocarbons was appreciable; ,= 16% mineralised in all soils. Generally, addition of nutrients or degraders increased the rates and extents of mineralisation of C-14-hydrocarbons. However, the addition of nutrients and degraders in combination had a negative effect upon C-14-octacosane mineralisation and resulted in lower extents of mineralisation in the three soils. In general, the rates and extents of ...
The population of filamentous acetate-utilizing methanogens in paddy field soils was 2.0×10,SUP,4,/SUP, MPN/g dry soil in the submerged condition. They were able to form colonies in a deep agar medium, but not in a roll tube. Filamentous acetate-utilizing methanogens isolated from Kanagi, Japan (strain K-5) and Tsukuba, Japan (strain T-3) were divided into two types based on length of filaments. One type, strain K-5, formed a short chain which was dispersed easily by weak shaking. The other type, strain T-3, formed a long chain, which formed cotton-like flocs and was not dispersed by weak shaking. They had sheaths composed of a pair of adjacent membranes on the outside of the cell membranes. The 16S rRNA gene similarities of strain T-3 and K-5 to ,I,Methanosaeta concilii,/I, strain Opfikon were 100% and 99.5% respectively. Filamentous acetate-utilizing methanogens were also isolated from paddy field soils in various other regions of Japan. Our results suggest that ,I,Methanosaeta,/I, is ...
The uppermost layer of the earths crust is known as soil. It is a mixture of rock fragments and organic matter which has decomposed into constituent nutrients.Soil formation is influenced by the weathering and erosion processes that are defined by a regions climate. Apart from this, the nature of the parent rock, topography, vegetation cover etc., also determine the type of soil that is formed.Pedogenesis is the process of soil formation under the action of various forces of nature such as wind, flowing water etc.Soil can be classified into three types based on the texture of grains found in it.Sandy soils - if the size of soil grain is in the range of 2 to 0.05 mm.Silt - if the size of soil grain is in the range of 0.05 to 0.002 mm. It is usually found on the river bedsClayey soils - if the size of soil grain is less than 0.002 mmSandy soils have enough gaps between their grains to drain water quickly. Hence, these soils tend to be dry, light in weight, and well aerated.Clayey soils are more ...
Rhizosphere microorganisms play an important role in soil carbon flow, through turnover of root exudates, but there is little information on which organisms are actively involved or on the influence of environmental conditions on active communities. In this study, a 13CO2 pulse labelling field experiment was performed in an upland grassland soil, followed by RNA-stable isotope probing (SIP) analysis, to determine the effect of liming on the structure of the rhizosphere microbial community metabolizing root exudates. The lower limit of detection for SIP was determined in soil samples inoculated with a range of concentrations of 13C-labelled Pseudomonas fluorescens and was found to lie between 105 and 106 cells per gram of soil. The technique was capable of detecting microbial communities actively assimilating root exudates derived from recent photo-assimilate in the field. Denaturing gradient gel electrophoresis (DGGE) profiles of bacteria, archaea and fungi derived from fractions obtained from ...
Inoculation of soil with bacteria (a Gram-negative rod [PD2] and a 4- membered consortium [DC1]) accelerated mineralization of phenanthrene and pyrene (but not naphthalene) added individually to a pristine sand and a pristine organic soil. The half-life of naphthalene was 3.5 days in both soils whether inoculated or non-inoculated. However, the half-life of phenanthrene decreased from 86 days in non-inoculated sand soil and 80 days in the non-inoculated organic soil to 3.6 days in the sand and 3.1 days in organic soil when inoculated with PD2, and to 6.6 days in the sand and 8.7 days in the organic soil when inoculated with DC1. Phenanthrene mineralization ceased after 23 days in DC1-inoculated soil and was 71.3 ± 3.6% (sand) and 63.3 ± 2.8% (organic). This compared with 96.8 ± 3.8% (sand) and 102.8 ± 2.5% (organic) after 8 days in PD2-inoculated soil. Inoculation with DC1 (but not PD2) also accelerated mineralization of pyrene, where the half-life decreased from 155 days to 18 days in the sand soil
This two day Biologically-Based Soil Management Workshop is a cost effective option designed for businesses, schools and other organizations who would like to train groups of 10 people or more. An Earthfort instructor will come to your location and provide an in-depth overview of soil biology, testing, and remediation. Your team will learn about the interrelationships between soil biology and soil nutrient chemistry, so you can better manage the soil system, improving your crops and soil remediation practices.. In this workshop, you will explore the physical, chemical, and biological processes of the soil. Your own soils history, chemistry and biological makeup has unique management implications. Well give you the tools that work with your system rather than against it, saving you time and money. You are encouraged to send in a soil sample to our laboratory to have the soil biology and chemistry tested prior to the workshop so we can take a more in-depth look at a soil biology report. This ...
The research results in recent years have shown an essential microbiological degradation of soils exposed to convenctional agricultural technologies. It was shown that the pedo-microbiological degradation of arable soils is much more advanced compared with humus degradation; the pedo-microbiological parameters were found to be more sensitive (comparing to the soil organic matter content) and, consequently, could be used for tracing and assessing the ecological changes in soil on relatively early stage. Quality and quantity pedo-microbiological criteria were suggested for estimation, monitoring and prediction of arable soil quality.. ...
Carbon sequestration is a process where carbon from the atmosphere is stored in the soil, which helps lessen global warming. Plants, ocean, and the soil all capture and store carbon.. The soil of the Everglades, called peat, is largely made up of waterlogged, decomposing plant and animal materials. The peat soil stores a large amount of carbon compared to other soils across the globe.. When the Everglades Agricultural Area was drained, the soil was exposed to higher levels of oxygen. Decomposition of the plant and animal materials happens much faster with more oxygen. When the carbon in the soil decomposes, it becomes carbon dioxide gas. The mass of the soil decreases, and gas goes into the atmosphere. Its a big chemistry equation.. Its not easy to picture a soil that disappears, says Rodriguez. The most challenging process I have to explain - and the most striking - is how carbon in the soil goes from the soil to the atmosphere.. The process of soil subsidence can release significant ...
In soils and sediments, microbial reduction of iron (hydr)oxides and consequent formation of secondary iron minerals are important factors influencing many biogeochemical cycles and processes that include microbial methanogenesis. Here, we investigated methanogenic activity and microbial community of a paddy soil enrichment in response to different biomineralization pathways of ferrihydrite, which was reduced and transformed to magnetite and vivianite in the absence and presence of phosphate, respectively. For methanogenic degradation of both acetate and propionate, CH4 production rates in the magnetite cultures were significantly enhanced compared with the vivianite cultures. Characterization of 16S rRNA genes from methanogenic soil microbial community indicated that, (i) biomineralization of ferrihydrite was an important factor affecting soil microbial community structure; (ii) Geobacteraceae was only enriched in the vivianite cultures for both acetate- and propionate-fed incubations; and (iii) the
Canadas Boreal forest covers 35% of the landmass, much of which is managed by the natural resources industry. As the largest exporter of wood products globally, the Canadian forestry industry relies on sustainable productivity of the soil. Microbial communities and bioavailability of nutrients are critical components of the sustainability of continuously harvested lands, thus assessing their response to harvesting was the overarching objective of this study. Microbial community biomass and composition was assessed using phospholipid fatty acid (PLFA) analysis and DNA fingerprinting of the bacterial community and ammonia oxidizing bacteria (AOB). In situ nutrient availability and chemical soil parameters were also measured here. Six cutblocks similar to each other except for their age since harvesting were sampled in the summer of 2009 and 2010 in both the forest floor and mineral Ae horizons of Orthic Gray Luvisols of central Alberta in the Boreal Plain ecozone. Microbial communities of these ...
Soil Collection. A total of 98 soil samples that were distinct with respect to soil and site characteristics were collected from a wide array of ecosystem types in North and South America (see Table 3). Only soils unsaturated for the majority of the year were examined. Soils were collected near the height of the plant growing season at each location. To examine whether seasonal variation was important, an additional set of soil samples was collected 6 months after the initial collection at a subset of sites. At each site, the upper 5 cm of mineral soil was collected from 5-10 locations within a given plot of ≈100 m2 and composited into a single bulk sample. All soil samples were shipped to the University of California, Santa Barbara, within a few days of collection, where they were sieved to 4 mm, homogenized, and archived at -80°C.. Site and Soil Description. For sites in the U.S., climate information for each site was estimated from historical average data (1971-2000) provided by the ...
Now that weve established the composition and components of soil, and described a brief history of soil in Virginia, we can expand on what properties in soil promote growth. We can do this while examining different soils from around central grounds. Three areas we will highlight are Observatory Hill Field (Figure 2), Fayerweather Hall (Figure 3), and the Lawn (Figure 4).. Organic matter. Organic matter broadly alludes to the assortment of dead plant and animal material in the soil. This includes everything from ground-up leaves to compost. Organic matter is essential to soil for its wide range of benefits that it provides. These benefits include being able to supply nutrients for plants by providing surfaces where nutrients can be held in reserve in the soil, facilitate better drainage by loosening soil structure, store water in soil, help increase air drainage, and increase the activity and numbers of soil microorganisms (organic matter). The optimal level for organic matter in soil is about ...
Surfactants with solvent and wetting abilities are used in the formulation of herbicides to enhance spraying capabilities. These chemicals eventually enter into the soil and may disrupt different chemical, physical and biological processes. The aim of this study was to examine the effects on nutrient uptake in corn and soil microbial community due to application of surfactants at different rates, herbicides, and surfactant-herbicide combinations in silt loam and silty clay loam soils. Surfactants used were Activator 90, Agri-Dex and Thrust. Herbicides used were glyphosate, atrazine, and bentazon. Corn was planted in fertilized soils and moisture levels maintained. After seven weeks, plant foliage were ground and stored for elemental analyses with Inductively Coupled Plasma Emission Spectrophotometer (ICP). Soil samples were analyzed with Polymerase Chain Reaction (PCR-DGGE) and Phospholipid Fatty Acids analyses (PLFA) to assess microbial diversity. The treatments did not greatly affect nutrient ...
Finding new antimicrobial activities by functional metagenomics has been shown to depend on the heterologous host used to express the foreign DNA Therefore efforts are devoted to developing new tools for constructing metagenomic libraries in shuttle vectors replicatable in phylogenetically distinct hosts Here we evaluated the use of the Escherichia coliBacillus subtilis shuttle vector pHT01 to
The concentration of CO2 in the Earths atmosphere has increased over the last century. Although this increase is unlikely to have direct effects on soil microbial communities, increased atmospheric CO2 may impact soil ecosystems indirectly through plant responses. This study tested the hypothesis that exposure of plants to elevated CO2 would impact soil microorganisms responsible for key nitrogen cycling processes, specifically denitrification and nitrification. We grew trembling aspen (Populus tremuloides) trees in outdoor chambers under ambient (360 ppm) or elevated (720 ppm) levels of CO2 for 5 years and analyzed the microbial communities in the soils below the trees using quantitative polymerase chain reaction and clone library sequencing targeting the nitrite reductase (nirK) and ammonia monooxygenase (amoA) genes. We observed a more than twofold increase in copy numbers of nirK and a decrease in nirK diversity with CO2 enrichment, with an increased predominance of Bradyrhizobia-like nirK ...
Stock farming plays an important role in the agriculture of alpine regions although deleterious effects on the soils are most pronounced here. We investigated the effects of cattle trampling on soil physical, chemical and microbial properties in a Swiss sub-alpine pasture. About 10% of the study site was bare of vegetation as a result of repeated cattle trampling and the bulk density of these bare steps was 20% higher than of the soils unaffected by trampling. In the upper 25 cm, soil organic carbon (SOC) concentrations and total SOC stocks were 35% and 20% respectively lower than on the vegetated slope. As compared with the vegetated slope, topsoils of the bare steps featured narrower C:N-ratios and were more enriched in the 15N isotope, with typical values of deeper soil layers. This indicates that bare soils primarily evolved by erosion and not by a compaction, which might, together with the reduced litter input, explain the lower SOC contents. The abundances of soil microbes, estimated by ...
Second, recognize that when we say healthy soils we are referring not only to oxygenated, aerobic soil structure but also to the abundance of beneficial microorganisms (microbes) that should exist in all productive soils. The famous adage Feed the Soil, Feed the Plant means that whatever we apply to the soil should feed the soil microbes and the plants too. We want our soils to be teaming with beneficial bacteria, fungi, nematodes, protozoans and micro-arthropods. Through the amazing work of Dr. Elaine Ingham, The Soil Foodweb, started in the mid 1990s, we now know of the incredible work that the invisible to the naked eye microbes do to grow and protect plants.. And we now know that plants give up to 80% of their manufactured photosynthesized food through the root system to directly attract and feed the microbes. The plant feeds the soil microbes and the soil microbes help the plants grow and protect them from diseases, pest insects and weeds. So to the soil do no harm. This is easily ...
Designed to provide students with fundamental knowledge of soil and soil composition. Includes study of soil types, formation factors, physical properties, biological properties, and basic soil chemistry. Units covering tillage, conservation, pH, soil management, plant nutrients, and fertilizer sources are also included. Students gain the skills required to interpret soil test reports and soil survey maps and recognize qualities of various soil types. Students perform soil sampling, residue measurements, compaction assessments, and soil loss determinations per crop rotation guidelines.. ...
Soil moisture is of primary importance for predicting the evolution of soil carbon stocks and fluxes, both because it strongly controls organic matter decomposition and because it is predicted to change at global scales in the following decades. However, the soil functions used to model the heterotrophic respiration response to moisture have limited empirical support and introduce an uncertainty of at least 4% in global soil carbon stock predictions by 2100. The necessity of improving the representation of this relationship in models has been highlighted in recent studies. Here we present a data-driven analysis of soil moisture-respiration relations based on 90 soils. With the use of linear models we show how the relationship between soil heterotrophic respiration and different measures of soil moisture is consistently affected by soil properties. The empirical models derived include main effects and moisture interaction effects of soil texture, organic carbon content and bulk density. When compared to
0 ^aThe soil system, by A. Burges.--Bacteria in soil, by F. E. Clark--Fungi in soil, by J. H. Warcup.--The actinomycetes, by E. Küster.--Soil algae, by J. W. G. Lund.--Protozoa, by J. D. Stout and O. W. Heal.--Nematoda, by C. O. Nielsen.--The enchytraeidae, by F. B. OConnor.--Lumbricidae, by J. E. Satchell.--Arthropoda (except acari and collembola) by F. Raw.--Acari, by J. A. Wallwork.--Collembola, by W. G. Hale.--Mollusca, by P. F. Newell.--The importance of antibiotics and inhibiting substances, by D. Park.--Soil micro-organisms and plant roots, by D. Parkinson.--The decomposition of organic matter in the soil, by A. Burges.--Soil micro-organisms and plant protection chemicals, by N. Walker ...
To explore how actively growing bacterial communities responded to the greenhouse treatment across soil depth and time of sampling, we incubated 5 g field moist soil subsamples in 100 ml falcon tubes with bromodeoxyuridine (BrdU). BrdU is a thymidine analog that can be used to analyze the proliferation of cells due to its incorporation into newly synthesized DNA (Borneman, 1999; Goldfarb et al., 2011; McMahon et al., 2011; Evans et al., 2014). Soil manipulations were completed in a 4 °C walk-in to help maintain soil temperatures during processing, and assays were initiated within 48 h of arrival in the lab (within a week of soil collection given transit time from Alaska). Soils were hand homogenized by horizon at the block level, and live coarse roots and rocks were removed. BrdU was added dropwise to soil samples as 1 ml of a 1.7 mM BrdU solution (made in sterile, Mili-Q H2O); the no BrdU control had 1 ml water added instead. Immediately following the BrdU or water-control addition, soils were ...
Abstract: Soil total nitrogen is an important indicator of soil fertility. In order to achieve a general applicability of the soil total nitrogen content detector developed based on the principle of spectroscopy, this paper selects the universal nitrogen-sensitive wavelength of soil suitable for different types of soil and models optimization. Firstly, the spectral characteristic curves of black soil, cinnamon soil and tidal soil were measured, the analysis found that under the same soil total nitrogen content, the absorbance curves of different types of soils are quite different. Then, the Monte Carlo non-information variable elimination (MC-UVE) algorithm was used to screen the soil total nitrogen sensitive wavelengths of the three soil types, the common sensitive spectral regions of different soil types were screened, and the spectral wavelength ranges were 895-911 nm, 1047-1065 nm, 1211-1232 nm, 1468-1482 nm, 1691-1699 nm and 2095-2109 nm. On the basis of the selected spectrum, the ...
TY - JOUR. T1 - Decomposition of soil organic matter as affected by clay types, pedogenic oxides and plant residue addition rates. AU - Singh, Mandeep. AU - Sarkar, Binoy. AU - Bolan, Nanthi S.. AU - Ok, Yong Sik. AU - Churchman, Gordon Jock. PY - 2019/7/15. Y1 - 2019/7/15. N2 - The interactive effects of the types and contents of soil clay fractions (SCFs) and plant-residue addition rates on soil organic carbon (SOC) stabilisation are largely unknown. We conducted incubation experiments by amending a sandy soil sample with kaolinitic-illitic, smectitic and allophanic SCFs and adding wheat residues to the mineral mixtures to compare their C stabilisation capacity. The rate of carbon (C) decomposition was higher in the kaolinitic-illitic SCF followed by smectitic and allophanic clay minerals. The supply of easily degradable C substrate from decomposing residues markedly influenced the SCFs abilities to stabilise SOC. The removal of sesquioxides from the SCFs significantly decreased their C ...
Phosphorus (P) is one of the leading causes of surface water quality decline in the United States, leading to algal blooms and hypoxia in lakes and streams. Decreasing conservation funds dictate that agencies such as the Natural Resources Conservation Service, maximizes its effectiveness and efficiency in implementing practices to address P management and runoff on agricultural lands. Additional information on P behavior in soil is needed to improve P management plans to reduce pollution risk at the watershed, farm, and field scales. This research focuses on the development of total soil P release models, to be included into assessment and management tools to better identify agricultural soils that pose the greatest threat to surface water if eroded, and to improve existing nutrient loss models. Soil P sorption behaviors and relationships with other soil properties were investigated on 313 agricultural surface soils from across the U.S. Different soil grouping schemes were investigated when analyzing
Soils naturally rich in heavy metals, such as serpentine soils, on the other hand do not seem to imprint significant changes on ... doi:10.1111/j.1756-1051.1986.tb00487.x. Dighton, J. "Mycorrhizae." Encyclopedia of Microbiology (2009): 153-162. Giron, David; ... In fact, the levels of fungal diversity in serpentine soils are comparable to those in non-serpentine soils and no serpentine ... Many other biotic and abiotic factors can mediate competition among EcM fungi, such as temperature, soil pH, soil moisture, ...
in Soil and Environmental Microbiology. References[edit]. *^ "Overview". University of Peradeniya. 2008. Retrieved 2011-01-09. ...
in Dry Soils". Applied and Environmental Microbiology. 51 (1): 123-125. doi:10.1128/AEM.51.1.123-125.1986. PMC 238827. PMID ... "SOIL MICROBIOLOGY BIOL/CSES 4684. Archived from the original on 2011-09-27.. ... Azotobacter species are ubiquitous in neutral and weakly basic soils, but not acidic soils.[31] They are also found in the ... and relatively low pH values of these soils.[32] In dry soils, Azotobacter can survive in the form of cysts for up to 24 years. ...
Sláviková E, Vadkertiová R (2003). "The diversity of yeasts in the agricultural soil". Journal of Basic Microbiology. 43 (5): ... Barnett JA (2003). "Beginnings of microbiology and biochemistry: the contribution of yeast research". Microbiology. 149 (3): ... "Microbiology and Molecular Biology Reviews. 64 (1): 34-50. doi:10.1128/MMBR.64.1.34-50.2000. PMC 98985. PMID 10704473.. ... "Microbiology and Molecular Biology Reviews. 69 (4): 565-584. doi:10.1128/MMBR.69.4.565-584.2005. PMC 1306807. PMID 16339736.. ...
... wentii has been isolated from a variety of cultivated and uncultivated soil types including grassland soils, forest soils, clay ... Advances in Applied Microbiology. 100. pp. 161-202. doi:10.1016/bs.aambs.2017.03.001. ISBN 9780128120484. PMID 28732553. Woltz ... As a common soil fungus and endosymbiont, Aspergillus wentii often lives in symbiosis with species in rhizospheres (an area of ... It is a common soil fungus with a cosmopolitan distribution, although it is primarily found in subtropical regions. Found on a ...
Soil Biology. 3. Berlin: Springer. doi:10.1007/b137872. ISBN 978-3-540-26609-9. Paul, Eldor A. (2014-11-14). Soil Microbiology ... p. 3. Evans, J. Heritage; E. G. V.; Killington, R. A. (1999). Microbiology in action (Repr ed.). Cambridge [u.a.]: Cambridge ... A primary example of lithotrophs that contribute to soil formation is Cyanobacteria. This group of bacteria are nitrogen-fixing ... Lithotrophs participate in many geological processes, such as the formation of soil and the biogeochemical cycling of carbon, ...
henonis) rhizosphere soil". International Journal of Systematic and Evolutionary Microbiology. 62 (Pt_11): 2589-2592. doi: ... Catenulispora graminis is a bacterium from the genus of Catenulispora which has been isolated from rizopheric soil from the ...
If the soil is dried by excessive heat, the hyphae of the mycorrhizae as well as the plant root hairs will have far more ... Canadian Journal of Microbiology. 55 (1): 84-94. doi:10.1139/W08-127. hdl:1912/2902. PMID 19190704. NSIDC. "Climate Change in ... The amount of CO2 within the soil is different from the amount that is in the air; the presence of this CO2 is a vital part of ... While vegetation above ground is easier to see and varies less over a larger region, soil contents vary widely within a much ...
Bae HS, Morrison E, Chanton JP, Ogram A (April 2018). "Methanogens Are Major Contributors to Nitrogen Fixation in Soils of the ... Microbiology. 2 (8): 621-31. doi:10.1038/nrmicro954. PMID 15263897. S2CID 29899253. "Diazotroph - Biology-Online Dictionary , ... They live in habitats low in oxygen, such as soils and decaying vegetable matter. Clostridium is an example. Sulphate-reducing ... Zehr JP (April 2011). "Nitrogen fixation by marine cyanobacteria". Trends in Microbiology. 19 (4): 162-73. doi:10.1016/j.tim. ...
isolated from soil, a member of the family Pseudonocardiaceae". International Journal of Systematic and Evolutionary ... Microbiology. 66 (2): 939-945. doi:10.1099/ijsem.0.000814. PMID 26637823.. Taxon identifiers. *Wikidata: Q27438464 ...
Cartwright, C.D. (March 2000). "Biodegradation of diethyl phthalate in soil by a novel pathway". FEMS Microbiology Letters. 186 ... Biodegradation of DEP in soil occurs by sequential hydrolysis of the two diethyl chains of the phthalate to produce monoethyl ... This biodegradation has been observed in several soil bacteria.[10] Some bacteria with these abilities have specific enzymes ... if the soil is also contaminated with methanol, that would produce another three intermediate compounds, ethyl methyl phthalate ...
Sims GK, Dunigan EP (1984). "Diurnal and seasonal variations in nitrogenase activity (C2H2 reduction) of rice roots". Soil ... Rubio LM, Ludden PW (2008). "Biosynthesis of the iron-molybdenum cofactor of nitrogenase". Annual Review of Microbiology. 62 (1 ... Plant and Soil. 321 (1-2): 35-59. doi:10.1007/s11104-008-9833-8. ISSN 0032-079X. Schneider K, Müller A (January 2004). Smith BE ... FEMS Microbiology Reviews. 24 (4): 321-33. doi:10.1111/j.1574-6976.2000.tb00545.x. PMID 10978541. Rivera-Ortiz JM, Burris RH ( ...
"Microbiology and Molecular Biology Reviews. 73 (4): 565-576. doi:10.1128/MMBR.00033-09. PMC 2786576. PMID 19946133.. ... The Acidobacteria (diderm Gram negative) is most abundant bacterial phylum in many soils, but its members are mostly uncultured ... "Applied and Environmental Microbiology. 67 (1): 411-9. doi:10.1128/AEM.67.1.411-419.2001. PMC 92593. PMID 11133473.. ... "Applied and Environmental Microbiology. 70 (6): 3724-32. doi:10.1128/AEM.70.6.3724-3732.2004. PMC 427773. PMID 15184179.. ...
nov., isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 59 (Pt 7): 1685-90. doi:10.1099/ ... nov., isolated from cliff soil". International Journal of Systematic and Evolutionary Microbiology. 59 (Pt 6): 1397-400. doi: ... nov., a gamma-proteobacterium isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 55 (Pt 2 ... International Journal of Systematic and Evolutionary Microbiology. 63 (Pt 9): 3154-7. doi:10.1099/ijs.0.048470-0. PMID 23435246 ...
nov., isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 61 (Pt 1): 65-70. doi:10.1099/ijs ... Gordonia humi is a Gram-positive and non-spore-forming bacterium from the genus of Gordonia which has been isolated from soil ...
nov., isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 60 (Pt 10): 2341-5. doi:10.1099/ ... is a Gram-negative and aerobic bacterium from the genus of Agromyces which has been isolated from hydrocarbon-contaminated soil ...
nov., isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 57 (11): 2493-2497. doi:10.1099/ ... rod-shaped and non-motile bacterium from the genus of Cellulosimicrobium which has been isolated from soil from Dokdo in Korea ...
nov., isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 61 (Pt 5): 1226-9. doi:10.1099/ ... strictly aerobic and motile bacterium from the genus of Nevskia which has been isolated from soil from the Baekryong Island in ...
nov., isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 67 (10): 4189-4194. doi:10.1099/ ... Streptomyces xylanilyticus is a bacterium species from the genus of Streptomyces which has been isolated from soil from the ...
nov., isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 62 (Pt 10): 2480-4. doi:10.1099/ ... aerobic and non-motile bacterium species from the genus of Cryptosporangium which has been isolated from soil from Mongolia. ...
nov., isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 65 (Pt 6): 1860-5. doi:10.1099/ ... nov., isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 65 (Pt 6): 1860-5. doi:10.1099/ ... non-spore-forming and non-motile bacteria from the genus of Chryseobacterium which has been isolated from soil. LPSN lpsn.dsmz. ...
nov., isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 63 (Pt 12): 4402-6. doi:10.1099/ ... Acinetobacter kookii is a gram-negative bacterium from the genus Acinetobacter which has been isolated from soil from Jeonju in ...
nov., isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 61 (2): 259-263. doi:10.1099/ijs. ... rod-shaped and non-spore-forming bacterium from the genus of Novosphingobium which has been isolated from oil-contaminated soil ...
Nov., isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 61 (3): 605-609. doi:10.1099/ijs. ... Nov., isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 60 (10): 2341-2345. doi:10.1099/ ... Nov., isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 58 (6): 1308-1312. doi:10.1099/ ... Agromyces is a genus in the phylum Actinobacteria (Bacteria). The name Agromyces derives from: Greek noun agros, field or soil ...
nov., isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 63 (Pt 1): 60-5. doi:10.1099/ijs. ... oligotrophica is a Gram-positive and motile bacterium from the genus of Cellulomonas which has been isolated from soil from ...
nov., isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 68 (2): 582-588. doi:10.1099/ ... Larkinella knui is a Gram-negative, aerobic and motile bacterium from the genus of Larkinella which has been isolated from soil ...
nov., isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 64 (Pt 5): 1703-1711. doi:10.1099 ... Pseudonocardia hierapolitana is a bacterium from the genus of Pseudonocardia which has been isolated from soil. Parte, A.C. " ...
nov., isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 61 (9): 2227-2230. doi:10.1099/ ... rod-shaped and motile bacterium from the genus of Tistrella which has been isolated from soil from Bozen in Italy. Tistrella ...
nov., isolated from soil". International Journal of Systematic and Evolutionary Microbiology. 58 (Pt 6): 1308-12. doi:10.1099/ ... Agromyces terreus is a Gram-negative and non-motile bacterium from the genus of Agromyces which has been isolated from soil ...
Trends in Microbiology. 17 (8): 378-387. doi:10.1016/j.tim.2009.05.004. PMID 19660952.. [permanent dead link] ... Top Left: A four level trophic pyramid sitting on a layer of soil and its community of decomposers. Top right: A three layer ... FEMS Microbiology Ecology. 55 (2): 311-321. doi:10.1111/j.1574-6941.2005.00019.x.. ... The energy flow continues on its path if the frog is ingested by predators, parasites, or as a decaying carcass in soil. This ...
Sylvia, D.M.; Fuhrmann, J.J.; Hartel, P.G.; Zuberer, D.A. (1999). Principles and Applications of Soil Microbiology. New Jersey ... Tilling over-pumps oxygen to local soil residents, such as bacteria and fungi. As a result, the chemistry of the soil changes. ... Natural farming recognizes soils as a fundamental natural asset. Ancient soils possess physical and chemical attributes that ... This damages their ability to aerate the soil. Living roots drill millions of tiny holes in the soil and thus provide oxygen. ...
... scandium gradually accumulates in soils, which leads to increased concentrations in soil particles, animals and humans. ... Environmental Microbiology. 16 (1): 255-64. doi:10.1111/1462-2920.12249. PMID 24034209.. ...
Research in Microbiology. 160 (9): 687-95. doi:10.1016/j.resmic.2009.09.006. PMID 19781638.. ... and Sinorhizobium meliloti is a soil bacterium that invades, and becomes a symbiont in, plant root nodules that fix nitrogen ...
"Applied and Environmental Microbiology. 76 (3): 769-775. doi:10.1128/AEM.00698-09. PMC 2813020 . PMID 19966019.. ... "Gene-modified tomato revels in salty soils - 31 July 2001". New Scientist. Retrieved 2010-08-23.. ... Monsanto's tomato was engineered with the ACC deaminase gene from the soil bacterium Pseudomonas chlororaphis that lowered ... Indian Journal of Medical Microbiology. 25 (2): 93-102. doi:10.4103/0255-0857.32713. PMID 17582177.. ...
"Beyond the grave: understanding human decomposition" A. A. Vass Microbiology Today 2001 [1] ... beginning with elemental and mineralogical composition of bone and enveloping soil, as well as the local burial environment ( ...
Marise A. Hussey, Anne Zayaitz Endospore Stain Protocol Microbe Library (American Society of Microbiology) ... Endospores are commonly found in soil and water, where they may survive for long periods of time. A variety of different ... Murray, Patrick R.; Ellen Jo Baron (2003). Manual of Clinical Microbiology. 1. Washington, D.C.: ASM.. .mw-parser-output cite. ... Pommerville, Jeffrey C. (2014). Fundamentals of microbiology (10th ed.). Burlington, MA: Jones & Bartlett Learning. ISBN 978- ...
An ecological cascade effect is a series of secondary extinctions that is triggered by the primary extinction of a key species in an ecosystem. Secondary extinctions are likely to occur when the threatened species are: dependent on a few specific food sources, mutualistic (dependent on the key species in some way), or forced to coexist with an invasive species that is introduced to the ecosystem. Species introductions to a foreign ecosystem can often devastate entire communities, and even entire ecosystems. These exotic species monopolize the ecosystem's resources, and since they have no natural predators to decrease their growth, they are able to increase indefinitely. Olsen et al.[1] showed that exotic species have caused lake and estuary ecosystems to go through cascade effects due to loss of algae, crayfish, mollusks, fish, amphibians, and birds. However, the principal cause of cascade effects is the loss of top predators as the key species. As a result of this loss, a dramatic increase ...
"Plant and Soil. 193 (2): 199-208. doi:10.1023/A:1004276311956. ISSN 0032-079X.. ... Microbiology Spectrum. 5 (1). doi:10.1128/microbiolspec.FUNK-0010-2016. PMID 28128071.. ... Plants obtain minerals from the soil, and most of the minerals in our diets come directly from plants or indirectly from animal ... Minerals from plant sources may also vary from place to place, because soil mineral content varies geographically.. ...
American Society for Microbiology. ISBN 1-55581-391-7.. *. Blum P, ed. (2008). Archaea: New Models for Prokaryotic Biology. ... Kostrikina NA; Zvyagintseva IS; Duda VI (1991). "Cytological peculiarities of some extremely halophilic soil archaeobacteria". ... "Nature Reviews Microbiology. 9 (1): 51-61. doi:10.1038/nrmicro2482. PMID 21132019. Retrieved 5 November 2014.. ... Schaechter, M (2009). Archaea (Overview) in The Desk Encyclopedia of Microbiology (2nd ed.). San Diego and London: Elsevier ...
"Applied Microbiology and Biotechnology. 99 (12): 4943-4951. doi:10.1007/s00253-015-6641-y. PMC 4677055. PMID 25957494.. ... and would enhance soil fertility.[88] The selection of land on which to grow the feedstocks is a critical component of the ... deforestation and soil erosion, loss of biodiversity,[77] impact on water resources, the possible modifications necessary to ... an increase in carbon dioxide from the burning of fossil fuels to produce the biofuels as well as nitrous oxide from the soil, ...
"International Journal of Food Microbiology. 132 (2-3): 141-144. doi:10.1016/j.ijfoodmicro.2009.04.011. PMID 19439385.. ... reminiscent of the smell of rich garden soil or an autumn leaf pile, sometimes with roasted or sweet undertones. Because of its ... International Journal of Food Microbiology. 124 (2): 199-203. doi:10.1016/j.ijfoodmicro.2008.03.008. PMID 18455823.. ...
The typical habitat for blow-flies are temperate to tropical areas that provide a layer of loose, damp soil and litter where ... "A History of Microbiology". 30 April 2003. Retrieved 12 March 2008.. ...
Gangrenous infection by soil-borne bacteria was common in the combat injuries of soldiers well into the 20th century, because ... Gerard J. Tortora; Berdell R. Funke; Christine L. Case (2010), Microbiology: An Introduction (10th ed.), Benjamin Cummings, p. ... It is often seen in infections with C. perfringens or any of myriad soil-borne anaerobic bacteria. Bacteria cause myonecrosis ... Soil-borne anaerobes are particularly well-adapted to surviving harsh conditions. Often, a scarcity of nutrition and ...
It is important to note that the war brought to light germs that during times of peace were concealed deep within the soil or ... Roux set up the first course of microbiology ever taught in the world, then entitled Cours de Microbie Technique (Course of ... general microbiology research) and Charles Chamberland (microbes research applied to hygiene), as well as a biologist, Ilya ... who also supervised the department of microbiology, while Emile Roux dealt with microbial methods applied to medicine. ...
American Society for Microbiology. ISBN 1-55581-391-7.. *. Blum, P, ed. (2008). Archaea: New Models for Prokaryotic Biology (en ... 1991). "Cytological peculiarities of some extremely halophilic soil archaeobacteria". Arch. Microbiol. 156 (5): 344-49. doi: ... "Microbiology (Reading, Engl.) 149 (Pt 2): 295-304. PMID 12624192. doi:10.1099/mic.0.25948-0.. ... "Microbiology (Reading, Engl.) 150 (Pt 11): 3527-46. PMID 15528644. doi:10.1099/mic.0.27303-0.. ...
Jatropha has been cited as a high-yield source of biodiesel but yields are highly dependent on climatic and soil conditions. ... Microbiology. 154 (Pt 11): 3319-3328. doi:10.1099/mic.0.2008/022186-0. PMID 18957585.. ... However, growth on marginal land can lead to lower oil yields which could cause competition with food crops for better soil. ... soil depletion,[citation needed] and the externalized costs of political and military interference in oil-producing countries ...
"Soil Biology and Biochemistry. 36: 409-414. doi:10.1016/j.soilbio.2003.10.016.. Parameter ,month=. yang tidak diketahui akan ... "THE JOHNS HOPKINS MICROBIOLOGY NEWSLETTER. 26 (05).. Parameter ,month=. yang tidak diketahui akan diabaikan (bantuan) ... Journal Applied Microbiology and Biotechnology. 58: 421-427. doi:10.1007/s00253-002-0931-x.. horizontal tab character di , ... Biol Fertil Soils. 44: 1073-1080. doi:10.1007/s00374-008-0296-0.. Pemeliharaan CS1: Banyak nama: authors list (link) ...
contact with soil contaminated with feces Toxocariasis Toxocara canis, Toxocara cati dogs, foxes, cats ingestion of eggs in ... American Society for Microbiology, Washington, D.C., 2003. ISBN 1-55581-236-8. ... direct contact with contaminated soil and surface water Microsporidiosis Encephalitozoon cuniculi Rabbits, dogs, mice, and ... consuming water, soil or food contaminated with the tapeworm eggs (cysticercosis) or raw or undercooked pork contaminated with ...
hercynicus grew with Picea abies, generally in more alkaline soils and along with mosses of the genera Hylocomium and ... Harrison, Maria J. (2005). "Signaling in the arbuscular mycorrhizal symbiosis". Annual Review of Microbiology. 59: 19-42. doi: ... The species favours acidic soil.[21] Cortinarius violaceus forms mycorrhizal associations with several species of tree.[17] In ...
After working diligently in the school system, Baker was offered an opportunity to help lower the mortality rate in Hell's Kitchen. It was considered the worst slum in New York at the turn of the century, with as many as 4,500 people dying every week. Baker decided to focus on the infant mortality rate in particular, as babies accounted for some 1,500 of the weekly deaths. Most of the infant deaths were caused by dysentery, though parental ignorance and poor hygiene were often indirectly to blame.[3] Baker and a group of nurses started to train mothers in how to care for their babies: how to clothe infants to keep them from getting too hot, how to feed them a good diet, how to keep them from suffocating in their sleep, and how to keep them clean.[1][12] She set up a milk station where clean milk was given out. Commercial milk at that time was often contaminated, or mixed with chalky water to improve colour and maximize profit. Baker also invented an infant formula made out of water, calcium ...
soil biology. The study of microbial and faunal activity and ecology in soil.. species. The basic unit of biological ... microbiology. The study of microscopic organisms, such as bacteria, viruses, archaea, fungi and protozoa. This discipline ... Biomes are often defined by abiotic factors such as climate, topographical relief, geology, soils, and water resources.. ... soil, or another organism.. 2. In botany, the property of a plant or plant part that is attached directly by its base to an ...
... soil, and particle surface spanning the globe to depths of at least 1600 metres below the sea floor and 70 kilometres into the ... FEMS Microbiology Ecology. 69 (2): 143-57. doi:10.1111/j.1574-6941.2009.00706.x. PMID 19527292.. ...
... can be found mostly in soil and decaying organic matter, as well as in living organisms such as humans and ... "International Journal of Systematic Evolutionary Microbiology vol. 61. pp. 1259-1264. Retrieved 2011-06-11.. ...
Soil-borne nematodes also have been shown to transmit viruses. They acquire and transmit them by feeding on infected roots. ... In 1898, Martinus Beijerinck, who was a Professor of Microbiology at the Technical University the Netherlands, put forth his ... A number of virus genera are transmitted, both persistently and non-persistently, by soil borne zoosporic protozoa. These ... Nature Reviews Microbiology. 9: 99-108. doi:10.1038/nrmicro2491. PMID 21200397. Oparka KJ and Alison GR, Plasmodesmata. A Not ...
Degraded soil is known as soil that is heavy metal rich or nutrient depleted due to a drought. Frankia is a nitrogen-fixed ... Journal of Basic Microbiology. 58 (9): 720-729. doi:10.1002/jobm.201800122. ISSN 1521-4028. PMID 29962068. S2CID 49639716.. ... Frankia can resist low concentration of heavy metals such as, Cu, Co, and Zn.[9]Frankia may be an advantage for degraded soil. ... Frankia tolerates a narrow temperature and soil pH range. It grows best at around 30 degrees Celsius with an environment pH ...
nov., isolated from soil. door Lei Zhang e.a. (2011, International Journal of Systematic and Evolutionary Microbiology). ... Soil suppressiveness and functional diversity of the soil microflora in organic farming systems. Soil Biology and Biochemistry ... 2005). Lysobacter species have also been isolated from soils suppressive to Rhizoctonia solani. Clay soils with natural ... Applied Microbiology and Biotechnology 44:589-596. Meyers, E., R. Cooper, L. Dean, J. H. Johnson, D. S. Slusarchyk, W. H. Trejo ...
Jay, J. M. (1992). Modern Food Microbiology; 4th edition. New York: Chapman & Hall. pp. 237-9. ... the residue from the decomposing milk will block the soil pores and thereby reduce the water infiltration rate through the soil ... that can be transmitted to people who work in dairy production through exposure to urine or to contaminated water or soil.[17][ ...
G. Hide (1999). "History of Sleeping Sickness in East Africa". Clinical Microbiology Reviews: 112-125.. ... soils for better crop production, and affects human settlements (people tend to avoid areas with tsetse flies). ... and manure is not available to fertilize the worn-out soils. ... "Trypanosomiasis page, "Microbiology and Immunology On-line" ...
"Clinical Microbiology Reviews. 25 (1): 164-92. doi:10.1128/CMR.05015-11. PMC 3255965. PMID 22232375.. ... certain types of soil, and diatomaceous earth or Kieselguhr.[60] Of these, diatomaceous earth in particular has seen a revival ... "Clinical Microbiology Reviews. 25 (1): 164-92. doi:10.1128/CMR.05015-11. PMC 3255965. PMID 22232375.. ...
Soil ecology, Soil Microbiology, Technique, Ecology, Science/Mathematics, Fungi, Soil biochemistry, Soil fertility, Soil ... Soil microbiology 333 works Search for books with subject Soil microbiology. Search. ... Accessible book, Soils, Protected DAISY, Congresses, Microbiology, ...
... mat msma at Mon Aug 23 09:19:43 EST 1999 *Previous message: Scottish Microbiology Society ... Can anybody suggest good website for soil microbiology or any experts around??? As I am specializing in biofertilizers I would ... Previous message: Scottish Microbiology Society Meeting *Next message: Research help needed: competitive exclusion between two ...
Professorship of General and Soil Microbiology Search Site. only in current section ... Cardinale M., Suarez, C., Steffens, D., Ratering, S. and Schnell, S. (2019) Effect of different soil phosphate sources on the ... different amendments revealed by microbial 13C-labelled wheat root decomposition and efflux-mediated metal resistance of soil ...
The living soil is crucial to photosynthesis, biogeochemical cycles, global food production, climate change, biodiversity, and ... The Soil Microbiome--An Overview. The Bacteria and Archaea in Soil. The Fungi in Soil. The Viruses in Soil--Potential Roles, ... The Soil Environment. The Seven Grand Questions on Soil Microbiology (Selman A. Waksman, Reexamined by Arthur D. McLaren). ... Discusses molecular methods applied to soil microbiology, diverse soil microorganisms, and global climate change ...
... or soil food web, transfers nutrients through the soil, makes other nutrients into forms plants can use, and helps protect ... Soil Life: Microbiology on the farm Soil Life: Microbiology on the farm. Posted on Wednesday, December 12th, 2012 at 9:07 pm.. ... Tags: rodale institute, farming, research, soil health, microorganisms. 7 Responses to "Soil Life: Microbiology on the farm". * ... Since different agricultural practices affect these complex communities in different ways, the microbiology of your soil can ...
Extracellular DNA was not found in measurable amounts in all soils; it was more likely to be present in soils with low ... We examined a wide range of soils using viability PCR based on the photoreactive DNA-intercalating dye propidium monoazide4. We ... Together, these findings imply that this relic DNA remaining in soil after cell death can obscure treatment effects, ... of prokaryotic and fungal DNA in soil is extracellular, or from cells no longer intact, confounding estimates of richness and ...
Soil Microbiology. Academic Program Description and Profile with links to related occupation profiles and colleges and ... soil-plant and soil-animal interactions, and the biological components and effects of soil management strategies. Includes ... Soil Microbiology. Academic Program Description. (NEW) A program that focuses on application of microbiological theory and ... instruction in microbiology and related biological sciences, applicable animal and plant sciences, soil chemistry and physics ...
The integrated approach to soil health assumes that soil is a living system and soil health results from the interaction ... The integrated approach to soil health assumes that soil is a living system and soil health results from the interaction ... and the closely related terms of soil quality and fertility, is considered as one of the most important characteristics of soil ... and the closely related terms of soil quality and fertility, is considered as one of the most important characteristics of soil ...
... economically and environmentally sound forest system also emphasizing soil microbiology and ecosystem services. ... She is currently full professor of soil microbiology and biotechnology in the Department of Soil Science at University of São ... Soil, Microbiology and Ecosystem Services Editors: Cardoso, E., de Moras Gonçalvez, J.L., Balieiro, F., Franco, A.A. (Eds.) ... in Microbiology from the University of New South Wales (Australia), a PhD in Soil Science from the University of California- ...
... we discuss advantages and disadvantages of these techniques and provide a perspective on emerging technologies for soil ... and activity of microbes to better understand soil biology and plant-microbe interactions. Functional microbiological analyses ... Soil microbial communities play an important role in plant health and soil quality. Researchers have developed a wide range of ... commonly used traditional as well as new culture-independent molecular methods to assess the diversity and function of soil ...
Removal of Dibenzofuran, Dibenzo-p-Dioxin, and 2-Chlorodibenzo-p-Dioxin from Soils Inoculated withSphingomonas sp. Strain RW1 ... Diversity of Arbuscular Mycorrhizal Fungus Populations in Heavy-Metal-Contaminated Soils C. Del Val, J. M. Barea, C. Azcón- ... Biodegradation of Atrazine by Agrobacterium radiobacter J14a and Use of This Strain in Bioremediation of Contaminated Soil J. K ... ENVIRONMENTAL AND PUBLIC HEALTH MICROBIOLOGY. Development and Testing of a Bacterial Biosensor for Toluene-Based Environmental ...
Plant Microbiology. Selection of Specific Endophytic Bacterial Genotypes by Plants in Response to Soil Contamination Steven D. ... Public Health Microbiology. Composition of Soil Microbial Communities Enriched on a Mixture of Aromatic Hydrocarbons E. Anne ... Combined Use of 16S Ribosomal DNA and 16S rRNA To Study the Bacterial Community of Polychlorinated Biphenyl-Polluted Soil ... Evaluation of Inoculum Addition To Stimulate In Situ Bioremediation of Oily-Sludge-Contaminated Soil Sanjeet Mishra, Jeevan ...
tags: soil carbon x microbiology x disease/medicine x The Scientist. » soil carbon, microbiology and disease/medicine ...
The concept of soil fertility will be introduced and its relationship with soil productivity, nutrient status and ... be able to discuss concepts of soil fertility and soil sustainability * be prepared for a third year project involving analysis ... of soils or interpretation of data on soils. Aims. To develop an understanding of soils as an environment for living organisms ... be able to explain what determines the organic matter content of soils and the groups of soil organisms mainly responsible for ...
Habitats for soil microbiology. Discussion in Organic Lawn Care started by phasthound, Mar 15, 2012. ... I was actually giving an example of overwatering to an extreme, and whether Trichoderma would survive long in a soil that would ... I was actually giving an example of overwatering to an extreme, and whether Trichoderma would survive long in a soil that would ... But they can begin to modify the soil habitat to favor them.. The best way to succeed with this method is to look at the entire ...
Presence of nirK-type denitrifiers in both soils was demonstrated but failure to amplify nirS from the desert soil suggests ... Presence of nirK-type denitrifiers in both soils was demonstrated but failure to amplify nirS from the desert soil suggests ... While denitrification activity in the desert soil was below detection limit, the semiarid soil sustained denitrification ... While denitrification activity in the desert soil was below detection limit, the semiarid soil sustained denitrification ...
Soil microbiology is the study of microorganisms in soil, their functions, and how they affect soil properties. It is believed ... Soil Microbiology. Fourth ed. Enfield: Science Publishers, 1999. Print. Vrieze, Jop de (2015-08-14). "The littlest farmhands". ... Principles and Applications of Soil Microbiology. Upper Saddle River: Prentice Hall, 1998. Print. Haney, Cara H.; Ausubel, ... Soil Biology. New York: Chapman and Hall, 1989. Print Vieira (2020). "Bacterial colonization of minerals in grassland soils is ...
Marker Genes in Soil Microbiology. In: Varma A., Buscot F. (eds) Microorganisms in Soils: Roles in Genesis and Functions. Soil ... Part of the Soil Biology book series (SOILBIOL, volume 3). Keywords. Marker Gene Appl Environ Soil Microbiology Methane ... Prosser JI (2002) Molecular and functional diversity in soil micro-organisms. Plant Soil 244:9-17CrossRefGoogle Scholar ... Ranjard L, Richaume A, Jocteur-Monrozier L, Nazaret S (1997) Response of soil bacteria to Hg(II) in relation to soil ...
Stability of soil microbial structure and activity depends on microbial diversity. Environmental Microbiology Reports, 6: 173- ...
Assistantship-Plant-Soil Interactions Boise State University, Boise ,Idaho, U.S.A. GRADUATE ASSISTANTSHIP (Ph.D. in Ecology, ... PhD Plant-Soil Interactions - BSU Ph.D. Assistantship-Plant-Soil Interactions. Boise State University,. Boise ,Idaho,. U.S.A.. ... 2) how diversity in belowground plant traits affects soil organismal biodiversity and plant-soil feedbacks. Our research is ... Minimum Qualifications: a B.S. or M.S. degree in Biology, Environmental Science, Soil Science or a related field. The position ...
Journal of Applied Microbiology, 2013, 114, 6, 1625. Wiley Online Library ... Genome and proteome analysis of phage E3 infecting the soil-borne actinomycete Rhodococcus equi. Authors. *. Samson P. Salifu, ... We report on the characterization and genomic analysis of bacteriophage E3 isolated from soil and propagating in Rhodococcus ...
Cool video about soil microbiology. I just watched this video on this site. Its 45 minutes long, but its chock full of great ...
Soil Microbiology and Sustainable Crop Production (Repost) - Free epub, mobi, pdf ebooks download, ebook torrents download. ... PDF] Soil Microbiology and Sustainable Crop Production. - Removed. * 2011-08-08Soil Microbiology and Sustainable Crop ... Geoffrey R. Dixon, Emma L. Tilston, Soil Microbiology and Sustainable Crop Production S, , ISBN: 9048194784 , 2010 , PDF ... Soil Microbiology and Sustainable Crop Production (Repost). ISBN: 9048194784. Category: Technical. Tag: Science/Engineering. ...
... researchers are excited about the latest drug discovery harvested from a soil sample. , Microbiology ... Soil has previously been the source of effective antibiotics, ... Soil has previously been the source of effective antibiotics, ... A new antibiotic called pseudouridimycin is made by a microbe that was collected in a soil sample taken in Italy. It ... Board of Governors professor of chemistry and chemical biology and laboratory director at the Waksman Institute of Microbiology ...
A full time postdoc position is available to explore effects of plant activity on soil microbes and decomposition in forest and ... Postdoctoral Position in Soil and Microbial Ecology - FU / WSU Fudan University, China and Western Sydney University, Australia ... stable isotope ecology and/or soil microbiology. Applicants should hold a Ph.D. in ecosystem ecology, microbiology, ... Postdoctoral Position in Soil and Microbial Ecology - FU / WSU Postdoctoral Position in Soil and Microbial Ecology - FU / WSU. ...
... Microbes permeate the entire food and agricultural process. While ... Management of organisms and their processes in soils. Related Conference of High Yield Techniques: Soil and Agricultural ... Carbon cycling And formation of soil organic matter. *Physiological and biochemical methods for studying soil biota and their ... Recommended Global Microbiology Conferences. USA & Americas. *Yeast Conference 2018, USA. *Microbial Pathogenesis 2018, Canada ...
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Soil-microbe interaction / Volume 1 Adhya, Tapan Kumar;Das, Subhasis;Lal, Banwari;Mohapatra, Balaram;Paul, Dhiraj Springer 2018 ... Advances in soil microbiology : recent trends and future prospects. ... Advances in soil microbiology : recent trends and future prospects. Soil-microbe interaction / Volume 1. ... Soil microbiology Electronic book Springer 2018 EISBN 9789811061776 This book presents a comprehensive collection of articles ...
Construction of Viable Soil Defined Media Using Quantitative Metabolomics Analysis of Soil M... ... Andrea Rocha Co-authors Article on Soil Metabolites for Frontiers in Microbiology ... "Construction of Viable Soil Defined Media Using Quantitative Metabolomics Analysis of Soil Metabolites" that was published in ... Frontiers in Microbiology is a leading journal in its field, publishing rigorously peer-reviewed research across the entire ...
  • Environmental Microbiology Reports, 6: 173-183. (
  • Andrea is a Senior Staff Scientist based in Tennessee focused on leading-edge research using an array of geochemical, microbial, computational, and genomics techniques within the areas of environmental microbiology, computational biology, and engineering science. (
  • environmental microbiology … File Size : 49.53 MB Download : 191 The modern … Read : 188, Author : Ghulam Hassan Dar Modern Soil Microbiology (second Edition) Edited by Jan Dirk van Elsas, Janet K. Jansson, and Jack T. Trevors. (
  • P Gerba 1.1 Introduction 3 1.2 An Historical Perspective 3 1.3 Modern Environmental Microbiology 6 1.4 Purpose and Organization of This Text 7 … Download it once and read it on your Kindle device, PC, phones or tablets. (
  • Stability of in situ immobilization of trace metals with different amendments revealed by microbial 13 C-labelled wheat root decomposition and efflux-mediated metal resistance of soil bacteria. (
  • The Bacteria and Archaea in Soil. (
  • Bacteria and Archaea, the smallest organisms in soil apart from viruses, are prokaryotic. (
  • Some bacteria can colonize minerals in the soil and help influence weathering and the breaking down of these minerals. (
  • The overall composition of the soil can determine the amount of bacteria growing in the soil. (
  • These bacteria will also form aggregates which increases the overall health of the soil. (
  • Fungi are abundant in soil, but bacteria are more abundant. (
  • For example, bacteria and fungi take nutrients from the soil which are "non-available" (meaning plants can't use them) and retain the nutrients as they grow. (
  • Bacteria also build microaggregates, the smallest units of soil structure. (
  • What we are specifically looking for in good soil is not merely the presence of different species of beneficial fungi and bacteria, but the ratio of the overall biomass of the two organism groups. (
  • For example, weeds require a soil with lots of bacteria whereas forests require much more fungi. (
  • There are far fewer predators in the soil than there are bacteria and fungi. (
  • Soil protozoa feed on bacteria. (
  • This keeps the bacteria communities healthy and growing by preventing overpopulation and overuse of nutrients which would be detrimental to everyone in the soil community. (
  • Metagenomic and small-subunit rRNA analyses reveal the genetic diversity of bacteria, archaea, fungi, and viruses in soil. (
  • Among the main topics, we present reference topics on soil microbiology, as biological nitrogen fixation, the role of mycorrhiza in mixed plantations, bio-indicators of soil quality, and plantgrowth promoting bacteria with biotechnological potential. (
  • The role of fungi, soil animals and bacteria in decomposition is highlighted. (
  • Exometabolomics enables analysis of metabolite utilization of low molecular weight organic substances by soil bacteria. (
  • Research in soil biology would clearly benefit from incorporating more protistology alongside the study of bacteria, fungi and animals. (
  • Studying Soil Bacteria. (
  • The object of this microbiology lab is for the purpose of learning the classification of bacteria and all of the procedures required to determine classification. (
  • The Cd-contaminated soil microbes is a potential resource for exploring cadmium resistant or tolerant bacteria. (
  • Studies involved in soil microbial community composition could not only help us to explore the potential risks associated with contaminated soils but also provide insight into possible soil remediation strategies using indigenous resistant bacteria. (
  • The overall aim of the project is assessment of interactions between plant root structural, physiological and biochemical traits, as well as the plant and soil microbiome components (bacteria, archaea and fungi) in relation to increasing soil temperature and changes in soil water regime. (
  • Then, they use different colored bacteria they've isolated from the soil to paint their mandala design on a Petri dish. (
  • So, when they took a soil sample back to the lab and plated it, some of their bacteria were stressed out. (
  • the soil, on which the carbon from the dead bacteria is accumulated and stabilised. (
  • A significant amount of the published literature on soil microbiology is devoted to these two â ¦ Role of Soil Bacteria: Update and Revision James J. Hoorman Assistant Professor and Extension Educator, Agriculture and Natural Resources Microbes in the soil are directly tied to nutrient recycling especially carbon, nitrogen, phosphorus, and sulfur. (
  • Bacteria are a major class of microorganisms that keep soils healthy and productive. (
  • Soil microbiology is the study of microorganisms in soil, their functions, and how they affect soil properties.It is believed that between two and four billion years ago, the first ancient bacteria and microorganisms came about on Earth's oceans. (
  • Winogradsky and M. W. Beijerinck worked with soil bacteria and developed. (
  • Professor Geof Smith from NMSU's Biology Department took time to give our middle-schoolers experience in sampling bacteria from 6 soils. (
  • After a lot of discussion about the plants supporting microbial populations, Kira, Frankie, and Xitlali extracted soil bacteria with sterile water, then plated a small sample (0.1 ml) onto agar plates. (
  • Bacteria may have to reply on certain types of solid surface motility to migrate in the soil and colonize roots. (
  • So here comes the simple question: how do bacteria migrate in the soil? (
  • This "levan detour" also provides competitive advantages to B. subtilis in root colonization in the soil alone and when competing with other soil bacteria. (
  • Promoting SSM by sucrose was also seen in several other soil bacteria we tested and predicted to have genes for levan biosynthesis, suggesting a wider presence of this pathway in soil bacteria. (
  • Here are the new papers on microbes in the Built Environment I found this week, about salt-loving bacteria colonizing old houses, viruses in swimming pools, sewer systems, urban water and soils, and microbiota in urban mosquitos. (
  • Deducing the physiological properties and environmental roles of bacteria in candidate phyla is obviously difficult, but some progress has been made and will be discussed for dominant soil groups. (
  • The types of bacteria that survive and proliferate in non-saturated surface soils are characterized by their ability to produce desiccation-resistant spores, the properties of which will be discussed. (
  • Streptomyces species) are spore-forming phyla (collectively termed Gram positive bacteria) that dominate in dry soils and are well represented in culture collections. (
  • Manipulations of native soils, e.g. for geotechnical purposes, by addition of nutrient-rich solutions constitute "enrichments", which favor the growth of relatively fast-growing bacteria that can typically also be coaxed into pure culture. (
  • Saturated and nutrient-amended soils can readily become anoxic, which selects for the growth of fermentative bacteria and for those bacteria and archaea capable of using electron acceptors other than oxygen. (
  • Soil bacteria, as compared to those from nutrient-poor aquatic environments, appear to be somewhat more cultivatable. (
  • That is, for bacteria of interest for a specific geotechnical applications will enrichments with any type of soil be successful? (
  • I particularly appreciated your clear explanation of the bacteria/fungi ratios in various soils & what that indicates, and therefore how to remedy problems. (
  • Respiration by plant roots, bacteria, fungi and soil animals all release CO2 in soils, as described below. (
  • Following the tradition of its predecessors, Modern Soil Microbiology, Third Edition , is an indispensable source that supports graduate/undergraduate teaching for soil and environmental microbiologists in academia, as well as in government and industrial laboratories. (
  • In the ten years since the publication of Modern Soil Microbiology , the study of soil microbiology has significantly changed, both in the understanding of the diversity and function of soil microbial communities and in research methods. (
  • Modern Soil Microbiology highlights a range of applied aspects of soil microbiology, including the nature of disease-suppressive soils, the use of biological control agents, biopesticides and bioremediation agents, and the need for correct statistics and experimentation in the analyses of the data obtained from soil systems. (
  • Download » In the ten years since the publication of Modern Soil Microbiology, the study of soil microbiology has significantly changed, both in the understanding of the diversity and function of soil … Format : PDF, ePub, Docs File Size : 26.46 MB File Size : 22.89 MB Read : 931, Author : Krishna Gopal Mukerji Among these, there are three major groups of microbial inoculants used on agricultural crops: File Size : 22.31 MB Download : 153 Preview. (
  • Modern soil microbiology represents an integration of microbiology with the concepts of soil science, chemistry, and ecology to understand the functions of microorganisms in the soil environment. (
  • Format : PDF, ePub, Mobi Read as many books … Modern Soil Microbiology … File Size : 72.90 MB LAND USE, LAND COVER AND SOIL SCIENCES - Vol. ... modern soil microbiology 326. (
  • Download Book Modern Soil Microbiology Second Edition Books In Soils Plants And The Environment in PDF format. (
  • View the article PDF and any associated supplements and figures … Use features like bookmarks, note taking and highlighting while reading Modern Soil Microbiology (Books in Soils, … File Size : 37.4 MB Format : PDF, Docs Format : PDF, Docs A majority of these plant growth promoting organisms colonize the surface of plant roots, known as the rhizosphere [1]. (
  • Soil microbiology, ecology, and biochemistry: An exciting present and great future built on basic knowledge and unifying concepts. (
  • Soil microbiology, ecology, and biochemistry. (
  • Retrouvez Soil Microbiology, Ecology, And Biochemistry et des millions de livres en stock sur (
  • The fourth edition of Soil Microbiology, Ecology and Biochemistry updates this widely used reference as the study and understanding of soil biota, their function, and the dynamics of soil organic matter has been revolutionized by molecular and instrumental techniques, and information technology. (
  • Soil Microbiology, Ecology, and Biochemistry serves as an invaluable resource for students in biogeochemistry, soil microbiology, soil ecology, sustainable agriculture, and environmental amelioration.NEW TO THIS EDITION:* New section on Ecology integrated with biochemistry and microbiology* Sections on exciting new methodology such as tracers, molecular analysis and … The book presents the core concepts of microbiology with a focus on applications for careers in allied health. (
  • Article type Section or Page Author Boundless License CC BY-SA Show TOC … This chapter discusses soil microbiology, ecology, and biochemistry. (
  • Soil Microbiology, Ecology and Biochemistry, Third Edition Eldor A. Paul. (
  • We have come a long way in developing our understanding of soil microbiology, ecology, and biochemistry, but have many milestones yet to meet.Molecular tools offer unparalleled opportunities to characterize soil biota in culture and directly from field soils. (
  • Knowledge of soil microbiology, ecology and biochemistry is central to our understanding of organisms and their processes and interactions with their environment. (
  • Download : 587 This chapter discusses soil microbiology, ecology, and biochemistry. (
  • it then describes such fundamental topics as soil environment and microbial processes, microbial groups Cited by: The new edition of Soil Microbiology, Ecology and Biochemistry covers all the main topics in the field, including: nutrient cycling, plant/soil interactions, characteristics of the soil environment, soil microbiology, and soil Cited by: Soil Microbiology book. (
  • While the basic principles are now better understood, knowledge has been forthcoming on the best available technologies and methods applied to researching soil microorganisms, their diversity, interactions, biochemistry, survival, gene expression, and their roles in global climate change, plant disease suppression and growth stimulation, and biogeochemical cycles. (
  • The Fungi in Soil. (
  • Fungi are important in the soil as food sources for other, larger organisms, pathogens, beneficial symbiotic relationships with plants or other organisms and soil health. (
  • The quality as well as quantity of organic matter in the soil has a direct correlation to the growth of fungi, because most fungi consume organic matter for nutrition. (
  • Mycorrhizal fungi are an example Nichols uses to explain the value added that microbiology brings to crops. (
  • Cover crops like annual ryegrass are conducive to production of healthy mycorrhizae population and create a symbiotic relationship helping the fungi, the soil and the plants. (
  • Plants growing in soils rich with mycorrhizae take advantage of the fungi to help them obtain nutrients from the soil," she added. (
  • In conclusion, the authors recommend a shift from cataloging fungal species in different soil ecosystems toward a more global analysis based on functions and interactions between organisms. (
  • Ecosystem regulators are responsible for soil structure formation and modification of habitats for other organisms by regulating the dynamics of physiological processes in the soil environment. (
  • To develop an understanding of soils as an environment for living organisms ranging from microorganisms and soil animals to plants. (
  • Students will learn how the soil environment varies and about the diversity of organisms that live in soils and the processes that they carry out. (
  • The dynamic nature of soil organic matter will be explained and the range of soil organisms described. (
  • Some examples of microbe-driven outcomes set the stage for describing how important it is to seize research opportunities in food and agriculture microbiology, The relationship of microbes to the human food supply also includes many examples of organisms that preserve rather than destroy. (
  • Soil microbes are drivers of plant diversity and productivity in terrestrial ecosystems, while plants also affect soil physical and chemical environment as well as soil organisms. (
  • Microbiology is the study of all living organisms that are too small to be visible with the naked eye. (
  • Soil is now Soil life, soil biota, soil fauna, or edaphon is a collective term that encompasses all organisms that spend a significant portion of their life cycle within a soil profile, or at the soil-litter interface. (
  • Living organisms present in the soil are grouped into two categories as Soil and Soil fauna. (
  • These organisms, collectively referred to as the soil biota, function in a belowground ecosystem based on plant roots and litter as food sources. (
  • Size of Soil Organisms. (
  • Crops and regions soil, their functions, Preface of organisms and their processes and interactions their. (
  • Soil And Water Conservation Engineering PDF Book Download Link: Soil organic matter is the storehouse for the energy and nutrients used by plants and other organisms. (
  • Soil microbiology is the study of organisms in soil, their functions, and how they affect soil properties. (
  • Soil life, soil biota, soil fauna, or edaphon is a collective term that encompasses all organisms that spend a significant portion of their life cycle within a soil profile, or at the soil … Soil … File Size : 52.84 MB Get Free Plant Microbiology Textbook and unlimited access to our library by created an … The surface layers of soil … Soil as a living system 2. (
  • Dr. Elaine stresses the importance of this life on the health of our plants and agricultural system, how using compost to increase the number of beneficial organisms living within your soil can make a huge difference to your soil quality, and the power of a microscope to bring all these ideas together, right in front of our eyes. (
  • The importance of these organisms is largely unknown, although they may reach numbers exceeding 105 m~2 in moist, organic soils (Wallwork, 1970). (
  • Microbiology is the branch of biology that deals with organisms that are too small to be seen by the naked eye. (
  • Cover crops feed a whole web of soil organisms…much more than mere crop residue. (
  • The soil structure, rich with microorganisms, is more conducive to water retention, as she explains, "Organisms help form soil aggregates, which allows for better water absorption because there is more pore space in the soil for water as well as an exchange of gas. (
  • Soil respiration refers to the production of carbon dioxide when soil organisms respire. (
  • This heterotrophic consumption releases CO2 and when this CO2 is released by below-ground organisms, it is considered soil respiration. (
  • Nitrogen is often the most limiting nutrient in soil and water. (
  • Her research interests are focused on ecology and agricultural sustainability, forestry, plant growth promoting microorganisms, plant microbiomes, organic residues in agriculture and forestry, and soil remediation. (
  • He currently works as a researcher at the National Center for Soil Research at Embrapa Solos (Brazil) and his research is focused on nutrient cycling, soil organic matter dynamics and soil ecology in different crop systems (eucalyptus, mixed forest plantations and sugar cane) and native vegetation (Amazon and Atlantic Forests and Cerrado biomes). (
  • The inorganic and organic constituents of which soils are formed will be outlined. (
  • Topsoil organic matter, nitrogen and moisture content were significantly higher in the semiarid soil compared to the desert soil. (
  • It covers cutting-edge methods in soil microbial ecological studies, rhizosphere microflora, the role of organic matter in plant productivity, biological nitrogen fixation and its genetics, microbial transformation of plant nutrients in soil, plant-growth-promoting rhizobacteria, and organic matter transformation. (
  • India is promoting organic farming to save its people and agricultural soils from the adverse effects of chemicals used in agriculture. (
  • However, one of the important aspects in organic farming is soil biological health, which the Indian 'Soil Health Cards' are not taking into account to a considerable extent. (
  • The parameters being tested to determine the health of any soil sample are soil pH, electrical conductivity (EC), organic carbon (OC), macronutrients viz. (
  • however, only 0.2 % of total cultivation in India is on organic soils (FAOSTAT, 2017). (
  • In organic farming, plants take up nutrients made available in soils by the biological activity of microorganisms. (
  • Since, only organic matters are used as the sources of macro and micro nutrients for plants, soil microorganisms play a vital role in the organic farming. (
  • They decompose organic matters and release carbon and nutrients in soil required for their own growth as well as the plants. (
  • The decomposition of organic matters and release of carbon and nutrients by soil microorganisms appears very simple. (
  • If a conventional farmer wants to switch over to an organic farming he or she should know, whether his or her soil biological health is fit for the conversion of organic matters into plant nutrients. (
  • Soil 1,3 is a multilayered surface complex of mineral and organic (humus) constituents present in solid, liquid, and gaseous states. (
  • For instance, soil microbes are important for organic matter decomposition and depend on the quality and amount of the plant residues that are incorporated into the soil. (
  • We are recruiting a Ph.D. student (UW-Madison) to work on a DOE-funded multi-institutional project investigating the role of microbes in post-fire soil organic matter (SOM) dynamics. (
  • The ideal candidate will have an MS (but we will consider a BSc with research experience), with expertise and interest in some or all of the following areas: microbiology and soil science, stable isotope probing of DNA, bioinformatics, microbial community ecology, soil carbon cycling or pyrogenic organic matter cycling, and gas flux tracing using stable isotopes. (
  • Rising global temperatures may increase the rates of soil organic matter decomposition by heterotrophic microorganisms, potentially accelerating climate change further by releasing additional carbon dioxide CO 2 to the atmosphere. (
  • Cherryle Prew, Owner and Manager of Soil Foodweb NZ, has been working in the industry since 1991 when she bought and began operating a Certified Organic Kiwifruit Orchard in Te Puke. (
  • Viv & Phil Gray, owner/operators of Soil Foodweb NZ since August 2021, have been following biological farming principles with organic certification for over 20 years on their sheep & beef property in Waiau, (upper South Island). (
  • The presence - or absence - of soil organic matter (SOM) has important implications for agricultural productivity. (
  • She focuses on organic matter cycling and the molecular and microbial mechanisms that drive it, seeking to understand the processes that control soil organic matter dynamics and interactions with microbes and minerals. (
  • The integrated approach to soil health assumes that soil is a living system and soil health results from the interaction between different processes and properties, with a strong effect on the activity of soil microbiota. (
  • In addition, the book explores issues ranging from general concepts on the diversity of microorganisms in soil, and ecosystem function to the evolution and taxonomy of soil microbiota, with future prospects. (
  • A further characterisation of soil microbiota is being assessed by using specific primer sets targeting functional genes involved in key processes of C and N cycles. (
  • To apply the use of soil microbiota for industrial and agricultural benefits. (
  • October 2020 Intro Soil Microbiology Lm: COYNE: (
  • The Protists in Soil--A Token of Untold Eukaryotic Diversity. (
  • Although it is implicitly assumed that the microbial DNA recovered from soil predominantly represents intact cells, it is unclear how extracellular DNA affects molecular analyses of microbial diversity. (
  • Figure 1: Relic DNA inflates soil microbial diversity estimates. (
  • Pyrosequencing enumerates and contrasts soil microbial diversity. (
  • Gans, J., Wolinsky, M. & Dunbar, J. Computational improvements reveal great bacterial diversity and high metal toxicity in soil. (
  • Researchers have developed a wide range of methods for studying the structure, diversity, and activity of microbes to better understand soil biology and plant-microbe interactions. (
  • In this review, we present the most commonly used traditional as well as new culture-independent molecular methods to assess the diversity and function of soil microbial communities. (
  • This module provides an insight into soil as a living and dynamic entity upon which we all depend not only for food but also for sustaining the world'r diversity of natural flora and fauna. (
  • Phylogenetic analysis showed a very low diversity of nirK with only three distinct genotypes in the desert soil which conditions presumably exert a high selection pressure. (
  • While nirK diversity was also limited to only few, albeit distinct genotypes, the semiarid matorral soil showed a surprisingly broad genetic variability of the nirS gene. (
  • Method developments have now furthered our understanding of the real taxonomic and functional diversity of soil protists. (
  • In this review, we provide an overview of the enormous morphological, taxonomical and functional diversity of soil protists, and discuss current challenges and opportunities in soil protistology. (
  • Biogeography, Functional diversity, Plant performance, Soil food web, Soil microbiome, Taxonomic diversity INTRODUCTION Protist diversity and functional roles in ecosystems Protists constitute the invisible majority of eukaryotes (Fig. 1). (
  • A novel actinobacterial strain, designated R1-20 T , was isolated during a study of the bacterial diversity of the soil at a white heron nesting site. (
  • Based on metagenomic analysis, we investigated the functional potential and structural diversity of the microbial community in Cd-contaminated and non-contaminated soil samples and we explored the associated metabolic pathway network in cluster of orthologous groups (COG) and Kyoto Encyclopedia of Genes and Genomes (KEGG). (
  • However, Cd-contamination has the potential to reduce the microbial diversity and further alter the community structure in the soil. (
  • Notably, tobacco decreased the diversity and co-occurrence of soil microorganisms, but maize rotation might suppress tobacco bacterial wilt by alleviating the decrease in biodiversity and co-occurrence. (
  • Here, we investigated how the transformation of semiarid shrubland into rainfed farming or irrigated agriculture with freshwater, dam-stored or untreated wastewater affects the total (DNA-based) and active (RNA-based) soil bacterial community composition, diversity, and functionality. (
  • Soil biological properties and fungal diversity under conservation agriculture in Indo-Gangetic Plains of India. (
  • A field experiment was undertaken to evaluate the effect of conservation agriculture CA based management on soil biological properties, and on fungal diversity and abundance after 5 years of continuous cultivation. (
  • Furthermore, this risk is intensified with in-situ burning of crop residues which hampered the soil biological activities and microbial diversity Lohan et al. (
  • Relationships between soil microbial diversity and soil function are the subject of much debate. (
  • His teaching interests include general microbiology laboratory, microbial diversity. (
  • Methods to Determine Bacterial Abundance, Localization, and General Metabolic Activity in Soil. (
  • Up to 10 billion bacterial cells inhabit each gram of soil in and around plant roots, a region known as the rhizosphere. (
  • To evaluate the viability of the SDM, we examined the growth of 30 phylogenetically diverse soil bacterial isolates from the ORFRC field site. (
  • this esay contains fairly extensive step by step instructions on how to enrich, isolate and culture bacterial samples that were taken from soil. (
  • Bacterial population of the soil exceeds other groups of microorganisms in number and variety. (
  • Soil moisture, sodium content and pH were the strongest drivers of the bacterial community composition. (
  • and stimulation and augmentation promoting bacterial production of calcite for improvement of soil mechanical properties. (
  • The aim of this book is to present, in depth, updated information on soil and microbial processes involved in mixed plantations of Eucalyptus and N2-fixing species, especially Acacia mangium , focusing on Forestry, Soils, Biology, Ecosystem Services and Sustainability. (
  • A series of laboratory practical classes will be linked directly to the lecture course and reinforce certain aspects of soil biology and plant nutrition. (
  • Thank you for sharing this Microbiology and Molecular Biology Reviews article. (
  • Message Body (Your Name) thought you would be interested in this article in Microbiology and Molecular Biology Reviews. (
  • He is a Soil Scientist Specialized in Soil biology and Fertility. (
  • He possess many skills including Preparation of practical material, Laying and cleaning of the laboratory, Production and Sale of Inoculants Preparing and setting green houses for soil micro biology research work. (
  • Claypan soils have unique physical characteristics that impact soil biology. (
  • Microbiology and Biology Notes for students. (
  • Soil biology is the study of microbial and faunal activity and ecology in soil. (
  • D H A R M ... and biology meet" Pioneer work in soil microbiology was done by Sergei Winogradsky & Martinus Beijerinck Father of soil microbiology Sergei Winogradsky The characteristics vary from locate and climate. (
  • Soil Foodweb NZ are the foremost soil testing laboratory for micro-biology. (
  • The Soil Microbiome--An Overview. (
  • Soil Microbiome Data Analysis. (
  • Analysis of Transcriptomes to Assess Expression and Activity Patterns of the Soil Microbiome. (
  • They are an essential, yet often forgotten, component of the soil microbiome. (
  • To describe the essential concepts of soil microbiome and soil plant ecosystem. (
  • Microbes and indoor plants The plant is crucial: specific composition and function of the phyllosphere microbiome of indoor ornamentals - Rocel Amor Ortega - FEMS Microbiology Ecology ($39 for 1 day) The plant microbiome is a key determinant of plant health. (
  • A recent news article discusses the impact of plant/soil microbiome research on agriculture, specifically helping feed a projected 9 million people in 2050. (
  • This entry was posted in Basic Science , Named professorships , Awards and honors , Changing Climate , Food Systems , Healthy Ecosystems and tagged soil science , award , microbiome , gift by [email protected] . (
  • The Chilean sclerophyllous matorral is a Mediterranean semiarid ecosystem affected by erosion, with low soil fertility, and limited by nitrogen. (
  • Just a few grams of soil, less than a tea- While studying the scope and importance of soil microbiology, soil-plant-animal ecosystem as such must be taken into account. (
  • In recent years, the knowledge on soil microbial communities in drylands has increased as they participate in critical processes needed to maintain soil quality and ecosystem functioning. (
  • Archaeorhizomycetes comprises hundreds of cryptically reproducing filamentous species that do not form recognizable mycorrhizal structures and have saprotrophic potential, yet are omnipresent in roots and rhizosphere soil and show ecosystem and host root habitat specificity. (
  • There are also lots of other known ecosystem effects of biocrusts - such as soil stabilisation and affecting water infiltration and retention. (
  • Biochar, or charcoal produced from plant matter and applied to soil, has become increasingly recognized as having the potential to address multiple contemporary concerns, such as agricultural productivity and contaminated ecosystem amelioration, primarily by removing carbon dioxide from the atmosphere and improving soil functions. (
  • Soil respiration is a key ecosystem process that releases carbon from the soil in the form of CO2. (
  • The amount of soil respiration that occurs in an ecosystem is controlled by several factors. (
  • Andrea Rocha (Tennessee) co-authored an article entitled "Construction of Viable Soil Defined Media Using Quantitative Metabolomics Analysis of Soil Metabolites" that was published in Frontiers in Microbiology on December 22, 2017. (
  • This led to more advanced microorganisms, which are important because they affect soil structure and fertility. (
  • Soil health, and the closely related terms of soil quality and fertility, is considered as one of the most important characteristics of soil ecosystems. (
  • He has undertaken extensive research on soil fertility, site preparation, and plant nutrition, focusing on the tropical and subtropical eucalypt and pine plantations, including genotypic adaptation and phenotypic acclimatization of plantations in regions with high water, thermal and nutritional stresses. (
  • The concept of soil fertility will be introduced and its relationship with soil productivity, nutrient status and sustainability explained. (
  • Soil fertility is the sustainable capacity of a soil to produce good yields of high quality on the basis of chemical, physical and biological factors. (
  • Sadasivam, Mages… and mycorrhizae to improve soil fertility, plant growth and yield. (
  • That keep soils healthy and productive things ) soil fertility, plant growth and yield studies on the isolation culture. (
  • Mycorrhizae to improve soil fertility, plant growth and yield healthy and productive agriculture deals extensively with studies the! (
  • Microorganisms in soil are important because they affect soil structure and fertility. (
  • He has been a soil consultant for the last 15 years using the Albrecht soil fertility system and recognises the importance of promoting the soil's biological processes. (
  • This laboratory analyzes soil for nutrient content, fertility status and provides recommendations for environmentally safe, balanced fertilizer and lime applications. (
  • Join one of the Marketplaces built on Blackbell - Increase your market reach by using nearby Blackbell Marketplaces to sell your soil microbiology services. (
  • This micro-community, or soil food web, transfers nutrients through the soil, makes other nutrients into forms plants can use, and helps protect crops from soil-born pathogens. (
  • These wonderful networks of the soil food web help to hold and transfer nutrients directly to plants through symbiotic relationships. (
  • Soils into which crop plants root and from which they obtain essential minerals and water contain huge arrays of microbes. (
  • Herein, we constructed a metagenomic fosmid library from the rhizosphere soil of banana plants, and six clones with protease activity were obtained by functionally screening the library. (
  • Soil microbes are involved in nutrient and water cycling within the soil, and interact with crop plants to provide the basic nutrient and water resources needed for crop production. (
  • Soil Microbiology and Its Effects on Nutrient Availability and Uptake in Plants (and other things)! (
  • Man depends on crop plants for his existence and crop plants in turn depend on soil and soil microorganisms for their nutrition. (
  • Many times during a drought, plants are not as much water stressed as they are nutrient stressed," said USDA soil microbiologist Kris Nichols. (
  • The little critters are threadlike, much smaller in width than plant roots, and have more access to more soil than plants. (
  • He is known as the Father of Microbiology.Antonie van Leeuwenhoek - He was the first to observe microorganisms using a microscope. (
  • This knowledge can be applied to better predict the transformation of pollutants in soil and the activities of microbes in the rhizosphere. (
  • Rincon-Florez VA, Carvalhais LC, Schenk PM. Culture-Independent Molecular Tools for Soil and Rhizosphere Microbiology. (
  • The authors discuss the soil and rhizosphere as habitats for microorganisms, then go on to describe the different microbial groups, their adaptive responses, and their respective processes in interactive and functional terms. (
  • Directly next to the root is the area known as the rhizosphere, which also plays an important role in soil respiration. (
  • The rhizosphere is a zone immediately next to the root surface with its neighboring soil. (
  • They are the most abundant microorganisms in the soil, and serve many important purposes, including nitrogen fixation. (
  • The professorship, founded in honor of the late UW-Madison bacteriologist Oscar N. Allen, is designated to help support a faculty member in the Department of Soil Science doing work in the field of symbiotic nitrogen fixation or soil microbiology. (
  • Frontiers in Microbiology is a leading journal in its field, publishing rigorously peer-reviewed research across the entire spectrum of microbiology. (
  • The very structure and health of your land is directly influenced by this complex set of biological and chemical interactions which decompose, retain, and recycle nutrients within the soil. (
  • NEW) A program that focuses on application of microbiological theory and methods to the study of the organismic properties of soils, soil-plant and soil-animal interactions, and the biological components and effects of soil management strategies. (
  • Includes instruction in microbiology and related biological sciences, applicable animal and plant sciences, soil chemistry and physics as related to biological characteristics, and environmental science. (
  • All soils can be described using physical, chemical, and biological properties, but adaptation to environmental changes, driven by the processes of natural selection, are unique to the latter one. (
  • It covers bio-fertilizers and their role in sustainable agriculture and soil health, biological control of insect pests and plant pathogens, and the latest tools of omics in soil microbiology, i.e. genomics, proteomics, transcriptomics and metabolomics, which offer pioneering approaches to the exploration of microbial structure and function. (
  • These results offer an interesting insight into the soil biological properties that impact soil health for crop production. (
  • Therefore, the Indian 'Soil Health Cards' should also consider addressing the soil biological health parameters. (
  • Microbiology is the study of microorganisms-biological entities too small to be seen with the unaided eye. (
  • In the video I explain how we extracted DNA from the sand of the Kalahari in Botswana, which we then used to identify the microbial communities that glue the desert surface together into a 'biological soil crust' (biocrust). (
  • Soil Foodweb New Zealand are soil rehabilitation specialists working with the New Zealand biological farming industry since 2003. (
  • The turnover of carbon, nitrogen and other nutrients will be described as an essential component of soils as a self-sustaining environment. (
  • The Chilean matorral is a shrub land plant community which form vegetational patches stabilizing the soil and increasing its nitrogen and carbon content. (
  • Morgantown, West Virginia, U.S.A. The Morrissey lab at West Virginia University is seeking a motivated Ph.D . student interested in researching microbial ecology and soil carbon cycling. (
  • At least, the soil microbial biomass carbon and enzymatic activities such as, dehydrogenase, alkaline phosphatase, etc., should be taken in to account. (
  • The below link having the study material, practical manuals for B.Sc (Agri) courses: The establishment of the principal roles that microorganisms play in the biologically important cycles of matter on earth: the cycles of nitrogen, sulphur and carbon was largely the work of two men, S. Winogradsky (1856-1953) and M.W. Soil Microbiology. (
  • This makes the biocrust itself much like a plant - it removes carbon dioxide from the air and helps to make the soil more fertile. (
  • Nichols said that the microbes, in exchange for carbon, give up nutrients and water which they get from the soil. (
  • This is because soil respiration plays a large role in global carbon cycling as well as other nutrient cycles. (
  • It has been demonstrated that up to 20% of carbon acquired by photosynthesis is released into the soil as root exudates. (
  • Microbial Interactions in Soil. (
  • Ecology of microorganisms especially soil, water and air, microbial interactions has been discussed. (
  • Three postdoctoral positions in microbial ecology and plant-microbe interactions Position descriptions available below and on the UW job site (positions 9465, 9480, 9466) at Post Doctoral Research Associate in Microbiology and Microbial Ecology (position 9465): The Ward research group at the University of Wyoming is seeking a postdoctoral researcher in microbiology and microbial ecology. (
  • Biochar Application: Essential Soil Microbial Ecology outlines the cutting-edge research on the interactions of complex microbial populations and their functional, structural, and compositional dynamics, as well as the microbial ecology of biochar application to soil, the use of different phyto-chemical analyses, possibilities for future research, and recommendations for climate change policy. (
  • Sustainable agriculture … This journal article describes the life history of Sergei Winogradsky, the "Father of Soil Microbiology. (
  • Sergei Winogradsky (1856-1953) was from Mother Russia, but he's called "The Father of Soil Microbiology" because: he was a man, and he discovered lots of interesting things before anyone else did. (
  • Sergei N. Winogradsky: Sergei N. Winogradsky (1856-1953), a Russian microbiologist, made many contributions to soil microbiology and is rightly called the founder of soil microbiology. (
  • Winogradsky (-) is recognized as the founder of soil microbiology for his contributions to nitrification. (
  • In the past decade, scientists have made significant advances in soil microbiology research. (
  • File Size : 42.80 MB Get Free Advanced Techniques In Soil Microbiology … The surface layers of soil … Download : 927 Format : PDF, ePub, Mobi PDF, 29.35 MB. (
  • Download and Read online Advanced Techniques In Soil Microbiology ebooks in PDF, epub, Tuebl Mobi, Kindle Book. (
  • Advanced Techniques In Soil Microbiology. (
  • Ralebitso-Senior, TK & Orr, C 2016, Biochar Application: Essential Soil Microbiology . (
  • Two extremely halophilic archaea, strains YIM 93745 T and YIM 93707, were isolated from a saline soil sample collected from Loulan, China. (
  • Groups of archaea and eucarya important in soils will also be discussed briefly. (
  • Using the latest molecular analyses, they integrate principles of soil microbiology with novel insights into the physiology of soil microorganisms. (
  • Principles of soil microbiology Item Preview remove-circle Share or Embed This Item. (
  • Principles of soil microbiology by Waksman, Selman A. The project was led by Doris Blaesing, then Project Manager at This project has been funded by Hort Innovation using the vegetable, fresh potato SOIL MICROBIOLOGY: MICROBIAL GROUPS IN SOIL The field of soil microbiology was explored during the very last part of 19th century. (
  • Read : 342, Author : Format : PDF, ePub, Mobi Book Description : Principles of Modern Microbiology presents an authoritative, balanced introduction to microbiology for majors. (
  • Format : PDF, Docs In order to read online Principles Of Modern Microbiology textbook, you need to create a FREE account. (
  • Download Principles Of Modern Microbiology Book For Free in PDF, EPUB. (
  • Download or read online book entitled Principles and Applications of Soil Microbiology written by David M. Sylvia and published by Prentice Hall. (
  • Book Excerpt : Comprehensive in approach, the second edition of Principles and Applications of Soil Microbiology has been updated with the latest information in the field. (
  • The mission of the Soil Microbiology and Root Diseases Committee is to provide a forum where practitioners and researchers, including faculty, graduate students, and postdoctoral associates, from academia, government, and industry, can discuss contemporary issues in soil microbiology, root pathology and health, and recent advances and challenges in the management of soilborne plant pathogens and the diseases they cause. (
  • Soil microbial communities play an important role in plant health and soil quality. (
  • Various soil conditions causing plant stress will be explored including drought, waterlogging, salinity, acidity and heavy metal toxicity. (
  • Modern genomic, transcriptomic and proteomic methods are linked with approaches based on soil chemical, biochemical and functional analyses, exploration of soil fauna and plant ecology. (
  • Predatory soil protists release nutrients enhancing plant growth. (
  • Application of a method incorporating differential centrifugation for selective isolation of motile actinomycetes in soil and plant litter. (
  • Researches in this area make it possible to control pathogen populations before they cause severe crop disease [ 3 , 4 ], but few studies explore the relationship between succession of soil microbial communities and plant health. (
  • Under this scheme, major emphasis is given to test the chemical properties and determine the availability of plant nutrients in the soil. (
  • 22. Answer: A. plant roots and act to extend the reach of root hairs into the soil. (
  • Agriculturally, soil is the region which supports the plant life by providing mechanical support and nutrients required for growth. (
  • VI Preface and the consequences of their activities on the nature of the soil and the effect on the growth and health of plant life. (
  • Format : PDF, ePub Plant Microbiology. (
  • Read : 1029, Author : Eldor A. Paul Download and Read online Plant Microbiology ebooks in PDF, epub, Tuebl Mobi, Kindle Book. (
  • Analysis of soil, plant and water as natural resources is of utmost importance in regard to conservation strategies. (
  • Download : 558 Download : 927 Format : PDF, ePub Download : 103 Download and Read online Plant Microbiology ebooks in PDF, epub, Tuebl Mobi, Kindle Book. (
  • The course will cover the role of soil microorganisms in soil-plant ecosystems. (
  • This laboratory examines soil and plant samples both qualitatively and quantitatively for the presence of plant parasitic nematodes. (
  • When plant respiration occurs below-ground in the roots, it adds to soil respiration. (
  • However, most CO2 released from the soil occurs via respiration and one of the most important aspects of below-ground respiration occurs in the plant roots. (
  • Douglas C. Nelson is a Professor in the Microbiology and Molecular Genetics Department at the University of California, Davis. (
  • The work combines soil biogeochemistry and microbiology with bioinformatics, molecular work and fieldwork, in order to conduct fundamental and applied research with relevance for land-use management, agroecology and climate change policy. (
  • Her research is situated at the nexus of soil biogeochemistry, microbial ecology, and global environmental change. (
  • While they may not be listed in major compendia of soil biota (Dindal, 1990), they are a genuine, albeit secondary, component of the soil fauna (Wallwork, 1976). (
  • Knowing what levels of soil biota exist in our soil and how active they are allows farmers and gowers to optimise their production systems. (
  • Greenlink is a state-of-the-art/cutting edge environmental cum microbiological research and extension laboratory involved in both processing a wide variety of samples representing ecological media such as air, water, soil, food and in processing samples from industries, domestic & agriculture sectors and automobiles etc. (
  • This laboratory manual for allied health or general microbiology has been written with the student in mind. (
  • The authors have used their years of teaching microbiology and microbiology laboratory at all levels to identify and relate the fundamental concepts that are important to the understanding of the science and students' success in their future field. (
  • In January 2003 at Dr Elaine Inghams invitation Cherryle's training was completed at the Soil Foodweb Labs in Lismore, Australia and Covallis, USA after which she opened the NZ laboratory. (
  • The permaculture podcast interview Dr. Elaine Ingham, microbiologist and soil researcher. (
  • On September 1, 1856, Ukrainian microbiologist, ecologist and soil scientist Sergei Nikolaievich Winogradsky was born, who pioneered the cycle of life concept. (
  • He is known as the Father of Microbiology and thus is known as the first microbiologist. (
  • It is a comprehensive collection of chapters on various aspects of soil microbiology, useful for all professionals working with soils. (
  • Aspects of soil fungal biodiversity. (
  • This book explores current knowledge for each of these aspects of soil microbiology and indicates where future progress is most likely to aid in increasing crop productivity by means which are environmentally benign and beneficial. (
  • It is a comprehensive collection of chapters on various aspects of soil. (
  • After all, the 'Soil Health Cards' are meant to help farmers in improving the productivity of their soils irrespective of farming systems! (
  • Since its inception in 2003, Soil Foodweb Institute NZ (SFI NZ) has been working with 10's of thousands of agriculture and horticultural growers throughout both islands of New Zealand to help them improve the health and productivity of their soils. (
  • Sergei Winogradsky founded microbial ecology and he was a founding father of microbiology. (
  • In case you are the operator of this website, you are able customize or disable the Web Application Firewall in our control panel The concentrated free Soil microbiology, ecology, and ad-free Marxist IS just set for academic table since the race could live getting the police of the cumbersome architecture. (
  • Microorganisms Cycling Soil Nutrients. (
  • Under the scheme, soil samples across the country are being analysed, for deficiency or sufficiency of macro and micro nutrients, by experts in various soil testing laboratories in the country. (
  • Thereafter, soil cards are being issued to farmers which are carrying strength and weaknesses of their soils, measures to deal with them and crop-wise recommendations of nutrients and fertilizers required for their farms. (
  • Explore our extensive range of quality microbiology journals and find the right one for your next paper. (
  • The diverse ecosystems that are found in soil determine the productivity of our land. (
  • Although the most significant loss of biologically preferred nitrogen from terrestrial ecosystems occurs via denitrification, virtually nothing is known on the activity and composition of denitrifier communities thriving in arid soils. (
  • Biochar Application is the first reference to offer a complete assessment of the various impacts of biochar on soil and ecosystems, and includes chapters analyzing all aspects of biochar technology and application to soil, from ecogenomic analyses and application ratios to nutrient cycling and next generation sequencing. (
  • Nearly 600 soil samples from New York City's famous park reveal that the urban environment harbors just as much biodiversity as natural ecosystems across the globe. (
  • Soil respiration and its rate across ecosystems is extremely important to understand. (
  • This is an important source of CO2 in soil respiration in waterlogged ecosystems where oxygen is scarce, as in peat bogs and wetlands. (
  • Saeki, K. & Kunito, T. in Current Research Technology and Education Topics in Applied Microbiology and Microbial Biotechnology Vol. 1 (ed. (
  • She is currently full professor of soil microbiology and biotechnology in the Department of Soil Science at University of São Paulo (Brazil) where she has been working since 1971 and has supervised more than 100 post-graduate and post-doctoral students. (
  • it was more likely to be present in soils with low exchangeable base cation concentrations, and the effect of its removal on microbial community structure was more profound in high-pH soils. (
  • Furthermore, we discuss advantages and disadvantages of these techniques and provide a perspective on emerging technologies for soil microbial community profiling. (
  • We show that the soil microbial community of restored heathland resembles that of native heathland and not pasture. (
  • However, it's a complex process and depends on the size of microbial community (e.g., biomass and numbers), bulk activities (respiration, enzyme activities), community composition and presence of subsets of microbes and their activity potentials in the soil. (
  • However, the possibility that microbial community responses to prolonged warming may modify the temperature sensitivity of soil respiration creates large uncertainty in the strength of this positive feedback. (
  • This mini review focuses on fungal biodiversity and its role in the health of managed soils as well as on the current methods used in soil mycobiome identification and utilization next generation sequencing (NGS) approaches. (
  • In a time of great global change and increased emphasis on biodiversity and food security, soil microbiology and ecology has become an increasingly important topic. (
  • Each of these groups has characteristics that define them and their functions in soil. (
  • The characteristics of soil environment, 2. (
  • File Size : 50.46 MB Download : 243 Read : 1186, Author : Kassem Alef Format : PDF The characteristics of soil environment, 2. (
  • Predator-prey relationships between microarthropods and other soil fauna are necessary to foster a complete food chain within, and beyond, the soil. (
  • Her theory is that "Conventional" agriculture is all about trying to get people to buy inorganic fertilizers, pesticides and minerals that inadvertently kill of the beneficial life (both flora and fauna) in the soil, so they are never able to do the jobs that nature intended them to do. (
  • These small fauna are often found only when a significant proportion of water films exist in soils. (
  • Cd-contamination can decrease the taxonomic species of microbes in soil and change the soil microbial composition. (
  • Explain soil composition. (
  • During this conversation, Host David Bilbrey and Elaine explore the concepts of soil microbiology, talking about how just below your earth surface the soil is brimming with life - moles, insects, worms and billions of microorganisms all living within the soil. (
  • This revised and updated edition guides students through biochemical and microbial processes in soils and introduces them to microbial processes in water and sediments. (
  • Agricultural Microbiology 7 Leeuwenhoek microscopes were crude, relied on a single lens held in a metal plate. (
  • Some microbiologists refer to van Leeuwenhoek as the "Father of Microbiology," because of his contributions to the field. (
  • We report on the characterization and genomic analysis of bacteriophage E3 isolated from soil and propagating in Rhodococcus equi strains. (
  • Here, we describe an approach for the construction of defined media using untargeted characterization of water soluble soil microbial metabolites from a saprolite soil collected from the Oak Ridge Field Research Center (ORFRC). (
  • The Father of Microbiology and the Microscope Essay by rfridhandler , High School, 11th grade , A , December 2006 download word file , 2 pages download word file , 2 pages 5.0 10 votes There are three answers for this question. (
  • These intimate and often complex inter-relationships are being explored with increasing success providing exciting opportunities for increasing crop yields and quality in sustainable harmony with the populations of beneficial soil microbes and to the detriment of pathogens. (
  • The interaction mechanism between crop and soil microbial communities is a key issue in both agriculture and soil ecology. (
  • However, how soil microbial communities respond to crop planting and ultimately affect crop health still remain unclear. (
  • This study would deepen our understanding about succession mechanism of soil microbial communities during crop cultivation and their relationship with crop health. (
  • It is difficult to summarize a general response pattern, because a kind of crop (e.g., wheat, tobacco) could be planted in farmlands with different climates, soil properties and rotation systems, resulting in spatial and temporal variability of soil microbial communities. (
  • Due to these variations, studies about soil microbial communities of a same crop were usually not complied with each other. (
  • In a word, the spatial and temporal variabilities of microbial communities are ubiquitous, therefore such background noises must be excluded, at least taken into consideration, when exploring general response pattern of soil microbial communities to crop planting. (
  • Soil microbial activity is important for crop production. (
  • This study explored the tempo-ral changes in soil microbiology in a claypan soil under conventional and no-till produc-tion during a crop rotation of corn/winter wheat/soybean/fallow commonly planted in southeast Kansas. (
  • In addition, the use of wastewater for crop irrigation modifies soil physicochemical properties. (
  • This book explores our current knowledge of a number of the complex interrelationships in soil microbiology and indicates where future progress is most likely to aid efforts to increase crop productivity by means which are environmentally benign. (
  • Therefore, it is important to understand the issues related to the accumulation or loss of SOM, to use what we have learned from experiments to make sound decisions about soil and crop management, and to test models and future concepts concerning SOM management. (
  • microbiology: Soil microbiology …great pioneer soil microbiologists were Martinus W. Beijerinck (1851-1931), a Dutchman, and Sergey N. Winogradsky (1856-1953), a Russian. (
  • Get introduction to soil microbiology, can be understood in better way by studying aspects like 1, search! (
  • WHO HQ Library catalog › Results of search for 'su:{Soil microbiology. (
  • Although protozoa are distributed principally in the upper few centimeters of a soil profile , they are also found at depth, over 200 m deep in groundwater environments (Sinclair and Ghiorse, 1989). (
  • As with the protozoa, rotifers, and tardigrades, nematodes live in water films or water-filled pore spaces in soils. (
  • While the most visible role of agriculture is probably that of producing and delivering food, microbiology is critical to other agricultural sectors as well, e.g., for production of energy and for bioremediation of agricultural wastes. (
  • Applied soil microbiology in agriculture deals extensively with studies on the isolation, culture and use of Rhizobium spp. (
  • Work in those years soil the field of soil microbiology in agriculture deals extensively studies. (
  • Is the study of the microorganisms in soil the field of soil microbiology in agriculture deals extensively with on! (
  • Bae YS, Knudsen GR (2000) Cotransformation of Trichoderma harzianum with betaglucuronidase and green fluorescent protein genes provides a useful tool formonitoring fungal growth and activity in natural soils. (
  • The fungal population dynamics in soil and in the rhizospheres of two maize cultivars grown in tropical soils were studied by a cultivation-independent analysis of directly extracted DNA to provide baseline data. (
  • Among numerous fungal lineages known only from environmental DNA sequences, Soil Clone Group 1 is the most ubiquitous. (