A natural association between organisms that is detrimental to at least one of them. This often refers to the production of chemicals by one microorganism that is harmful to another.
Organisms, biological agents, or biologically-derived agents used strategically for their positive or adverse effect on the physiology and/or reproductive health of other organisms.
A genus of gram-negative, facultatively anaerobic, straight rods which are motile by peritrichous flagella. Most strains produce a yellow pigment. This organism is isolated from plant surfaces, seeds, soil, and water, as well as from animals and human wounds, blood, and urine. (From Bergey's Manual of Determinative Bacteriology, 9th ed)
A group of EUKARYOTES that are parasites of plants. Life cycle stages include zoospores and plasmodia.
A family (Aphididae) of small insects, in the suborder Sternorrhyncha, that suck the juices of plants. Important genera include Schizaphis and Myzus. The latter is known to carry more than 100 virus diseases between plants.
A species of gram-negative bacteria, in the genus ERWINIA, causing a necrotic disease of plants.
Diseases of plants.
A genus of destructive root-parasitic OOMYCETES in the family Pythiaceae, order Peronosporales, commonly found in cultivated soils all over the world. Differentiation of zoospores takes place in a vesicle.
Use of naturally-occuring or genetically-engineered organisms to reduce or eliminate populations of pests.
Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)
A species of gram-negative, aerobic bacteria, commonly found in the clinical laboratory, and frequently resistant to common antibiotics.
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.
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)
Infections with bacteria of the genus ACINETOBACTER.
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.
A plant genus in the family VITACEAE, order Rhamnales, subclass Rosidae. It is a woody vine cultivated worldwide. It is best known for grapes, the edible fruit and used to make WINE and raisins.
Failing to prevent death from natural causes, for reasons of mercy by the withdrawal or withholding of life-prolonging treatment.
Time period from 1901 through 2000 of the common era.
Time period from 1801 through 1900 of the common era.
The measurement of various aspects of MAGNETIC FIELDS.
Critical and exhaustive investigation or experimentation, having for its aim the discovery of new facts and their correct interpretation, the revision of accepted conclusions, theories, or laws in the light of newly discovered facts, or the practical application of such new or revised conclusions, theories, or laws. (Webster, 3d ed)
Research that involves the application of the natural sciences, especially biology and physiology, to medicine.
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).
The integration of epidemiologic, sociological, economic, and other analytic sciences in the study of health services. Health services research is usually concerned with relationships between need, demand, supply, use, and outcome of health services. The aim of the research is evaluation, particularly in terms of structure, process, output, and outcome. (From Last, Dictionary of Epidemiology, 2d ed)
A large order of insects characterized by having the mouth parts adapted to piercing or sucking. It is comprised of four suborders: HETEROPTERA, Auchenorrhyncha, Sternorrhyncha, and Coleorrhyncha.
Annual cereal grass of the family POACEAE and its edible starchy grain, rice, which is the staple food of roughly one-half of the world's population.
Genetic loci associated with a QUANTITATIVE TRAIT.
A characteristic showing quantitative inheritance such as SKIN PIGMENTATION in humans. (From A Dictionary of Genetics, 4th ed)
A genus of RNA plant viruses as yet unassigned to any family. Plant hosts are all in the family Poaceae. Each species is transmitted by a particular species of planthopper. The type species is Rice stripe virus.
Any method used for determining the location of and relative distances between genes on a chromosome.
The genetic complement of a plant (PLANTS) as represented in its DNA.
Loss of epithelial tissue from the surface of the cornea due to progressive erosion and necrosis of the tissue; usually caused by bacterial, fungal, or viral infection.
Dilation of pupils to greater than 6 mm combined with failure of the pupils to constrict when stimulated with light. This condition may occur due to injury of the pupillary fibers in the oculomotor nerve, in acute angle-closure glaucoma, and in ADIE SYNDROME.
A TETRACYCLINE with a 7-chloro substitution.
Pupillary constriction. This may result from congenital absence of the dilatator pupillary muscle, defective sympathetic innervation, or irritation of the CONJUNCTIVA or CORNEA.
Semisolid preparations used topically for protective emollient effects or as a vehicle for local administration of medications. Ointment bases are various mixtures of fats, waxes, animal and plant oils and solid and liquid hydrocarbons.
An aminoglycoside, broad-spectrum antibiotic produced by Streptomyces tenebrarius. It is effective against gram-negative bacteria, especially the PSEUDOMONAS species. It is a 10% component of the antibiotic complex, NEBRAMYCIN, produced by the same species.
The relationship between two different species of organisms that are interdependent; each gains benefits from the other or a relationship between different species where both of the organisms in question benefit from the presence of the other.
Symbiotic combination (dual organism) of the MYCELIUM of FUNGI with the roots of plants (PLANT ROOTS). The roots of almost all higher plants exhibit this mutually beneficial relationship, whereby the fungus supplies water and mineral salts to the plant, and the plant supplies CARBOHYDRATES to the fungus. There are two major types of mycorrhizae: ectomycorrhizae and endomycorrhizae.
A species of gram-negative, aerobic bacteria that causes formation of root nodules on some, but not all, types of sweet clover, MEDICAGO SATIVA, and fenugreek.
The formation of a nitrogen-fixing cell mass on PLANT ROOTS following symbiotic infection by nitrogen-fixing bacteria such as RHIZOBIUM or FRANKIA.
The process in certain BACTERIA; FUNGI; and CYANOBACTERIA converting free atmospheric NITROGEN to biologically usable forms of nitrogen, such as AMMONIA; NITRATES; and amino compounds.
Insects of the family Formicidae, very common and widespread, probably the most successful of all the insect groups. All ants are social insects, and most colonies contain three castes, queens, males, and workers. Their habits are often very elaborate and a great many studies have been made of ant behavior. Ants produce a number of secretions that function in offense, defense, and communication. (From Borror, et al., An Introduction to the Study of Insects, 4th ed, p676)
An order of fungi in the phylum ASCOMYCOTA that includes a number of species which are parasitic on higher plants, insects, or fungi. Other species are saprotrophic.
Class of BACTERIA with diverse morphological properties. Strains of Actinobacteria show greater than 80% 16S rDNA/rRNA sequence similarity among each other and also the presence of certain signature nucleotides. (Stackebrandt E. et al, Int. J. Syst. Bacteriol. (1997) 47:479-491)
All of the divisions of the natural sciences dealing with the various aspects of the phenomena of life and vital processes. The concept includes anatomy and physiology, biochemistry and biophysics, and the biology of animals, plants, and microorganisms. It should be differentiated from BIOLOGY, one of its subdivisions, concerned specifically with the origin and life processes of living organisms.
An order of gram-positive, primarily aerobic BACTERIA that tend to form branching filaments.
A species of rod-shaped, LACTIC ACID bacteria used in PROBIOTICS and SILAGE production.
Antibacterial used topically in burn therapy.
One of the short-acting SULFONAMIDES used in combination with PYRIMETHAMINE to treat toxoplasmosis in patients with acquired immunodeficiency syndrome and in newborns with congenital infections.
Treatment of diseases with biological materials or biological response modifiers, such as the use of GENES; CELLS; TISSUES; organs; SERUM; VACCINES; and humoral agents.
A genus of gram-positive, microaerophilic, rod-shaped bacteria occurring widely in nature. Its species are also part of the many normal flora of the mouth, intestinal tract, and vagina of many mammals, including humans. Pathogenicity from this genus is rare.
Invasion of the site of trauma by pathogenic microorganisms.
The presence of an infectious agent on instruments, prostheses, or other inanimate articles.

Quantitative studies on competitive activities of skin bacteria growing on solid media. (1/570)

Earlier quantitative investigations of antagonism between skin bacteria were based on the use of liquid cultures, but a more realistic model has now been devised, based on the use of the surfaces of solid media. Pure or mixed inocula were spread evenly over suitable agar media in Petri dishes marked out with a standard grid. Growth curves were constructed from viable counts of the surface bacteria after they had been removed from excised squares of the agar media and dispersed. The method was highly reproducible, and competitive interactions were revealed more clearly than in studies with liquid media. An antibiotic-producing strain of Staphylococcus epidermidis (S6+) readily suppressed strains of Micrococcus, Corynebacterium and Streptococcus species. However, a Staphylococcus aureus strain which was less sensitive to the antibiotic effect of S6+ interacted in a complex manner, depending on the absolute and relative size of the S6+ inoculum.  (+info)

Secretion of FK506/FK520 and rapamycin by Streptomyces inhibits the growth of competing Saccharomyces cerevisiae and Cryptococcus neoformans. (2/570)

FK506 and rapamycin are immunosuppressants that inhibit signalling cascades required for T-cell activation, yet both are natural products of Streptomyces that live in the soil. FK506 and rapamycin also have potent antimicrobial activity against yeast and pathogenic fungi, suggesting a natural role in inhibiting growth of competing micro-organisms. The immunosuppressive and antimicrobial activities of FK506 and rapamycin are mediated by binding to the FKBP12 prolyl isomerase and the resulting FKBP12/FK506 and FKBP12/rapamycin complexes inhibit conserved protein targets, either the phosphatase calcineurin or the TOR (target of rapamycin) kinases, respectively. Streptomyces sp., 'Streptomyces hygroscopicus subsp. ascomyceticus' and Streptomyces hygroscopicus, which produce FK506, FK520 (also known as ascomycin, a C21 ethyl derivative of FK506) and rapamycin, respectively, produced toxins that inhibited the growth of competing cells of the yeast Saccharomyces cerevisiae and the pathogenic fungus Cryptococcus neoformans. Yeast and fungal mutants lacking FKBP12 or expressing dominant drug-resistant calcineurin or TOR mutants were resistant to FK506 and rapamycin, and to the toxins produced by Streptomyces. Streptomyces strains with mutations in the FK506 or rapamycin biosynthetic enzymes were impaired in toxin production. Finally, the toxins secreted by 'S. hygroscopicus subsp. ascomyceticus' and S. hygroscopicus promoted formation of FKBP12/calcineurin and FKBP12/TOR complexes in a two-hybrid assay and mutations that rendered calcineurin or TOR drug-resistant prevented interaction. These observations support the hypothesis that Streptomyces evolved to secrete FK506, FK520 and rapamycin as toxins to inhibit the growth of competing yeast and fungi.  (+info)

Purification and properties of a basic endo-beta-1,6-glucanase (BGN16.1) from the antagonistic fungus Trichoderma harzianum. (3/570)

The antagonistic fungus Trichoderma harzianum CECT 2413 produces at least two extracellular beta-1,6-glucanases, among other hydrolases acting on polysaccharides from fungal cell walls, when grown in chitin as the sole carbon source. We have previously reported on the purification and biochemical characterization of the major activity, which corresponds to an acidic enzyme named BGN16.2 [de la Cruz, J., Pintor-Toro, J.A., Benitez, T. & Llobell, A. (1995) J. Bacteriol. 177, 1864-1871]. In this paper, we report on the purification to electrophoretical homogeneity of BGN16.1, the second beta-1, 6-glucanase enzyme. BGN16.1 was purified by ammonium sulfate precipitation followed by adsorption and digestion of pustulan (a beta-1,6-glucan), chromatofocusing and gel-filtration chromatography. BGN16.1 is a non-glycosylated protein with an apparent molecular mass of 51 kDa and a basic isoelectric point (pI 7.4-7.7). The enzyme was active toward substrates containing beta-1,6-glycosidic linkages, including yeast cell walls. The Km was 0.8 mg x mL-1 with pustulan as the substrate. Reaction product analysis by HPLC clearly indicated that BGN16.1 has an endo-hydrolytic mode of action. The probable role of this enzyme in the antagonistic action of T. harzianum is also discussed.  (+info)

Intestinal colonisation of gnotobiotic pigs by Salmonella organisms: interaction between isogenic and unrelated strains. (4/570)

The effect of intestinal colonisation by a Salmonella strain on the establishment in the gut of an isogenic mutant administered orally 24 h after the first strain was studied in gnotobiotic pigs. Irrespective of the clinical outcome of the infection, the extensive colonisation of one Salmonella strain prevented a similar degree of colonisation by an otherwise isogenic antibiotic resistant strain; in some cases the second strain was hardly detectable. The poor colonisation of the challenge Salmonella strains was generally reflected in very low counts of organisms in the tissues. Colonisation by a strain of Escherichia coli reduced the rate of establishment of an isogenic E. coli, strain but did not prevent colonisation by an S. Typhimurium strain. S. Typhimurium with mutations in the tsr (serine chemotaxis receptor protein) or oxrA (transcriptional regulator of anaerobic metabolism) genes did not inhibit colonisation. Mutations in cya (adenylate cyclase), tar and trg (chemotaxis receptor proteins for aspartate and ribose respectively) genes were less inhibitory, while motB (non-motile) and cheR (impaired motility) mutants were fully inhibitory.  (+info)

A new alkaline pH-adjusted medium enhances detection of beta-hemolytic streptococci by minimizing bacterial interference due to Streptococcus salivarius. (5/570)

A new selective medium (CNA-P) that reduces or eliminates the inhibitory activity of bacteriocin-producing Streptococcus salivarius against beta-hemolytic streptococci has been developed and compared with sheep blood agar (SBA) for the sensitive detection of small numbers of beta-hemolytic streptococci in clinical specimens. CNA-P has as its basis a commercial medium (Difco Columbia CNA agar) supplemented with 5% (vol/vol) sheep blood, and the CNA is further modified by addition of 100 mM PIPES buffer [piperazine-N,N'-bis(2-ethanesulfonic acid)] (pH 7.5) to maintain cultures at an alkaline pH during incubation. CNA-P was shown to inhibit the production and/or release of four different types of S. salivarius bacteriocins or bacteriocin-like inhibitory molecules. The efficacies of CNA-P and SBA for detection of beta-hemolytic streptococci in 1,352 pharyngeal samples from 376 children were compared. The beta-hemolytic streptococcal isolates recovered from the samples included 314 group A (S. pyogenes), 61 group G, 33 group B, and 5 group C streptococci. Of 314 samples that yielded S. pyogenes, 300 were positive on CNA-P (96%) and 264 (86%) were positive on SBA. A significantly greater number of S. pyogenes isolates from these samples were recovered only on CNA-P (50 of 314) compared with the number of isolates recovered only on SBA (14 of 314). In addition, the degree of positivity, a measure of the total numbers of S. pyogenes isolates on the plate, was significantly higher on CNA-P than on SBA (2.40 versus 2.07; P < 0.001). Interestingly, CNA-P was also found to enhance the hemolytic activity of streptolysin O, allowing detection of streptolysin S-deficient S. pyogenes strains which might otherwise go undetected on SBA and other isolation media.  (+info)

Selected bacterial strains protect Artemia spp. from the pathogenic effects of Vibrio proteolyticus CW8T2. (6/570)

In this study Vibrio proteolyticus CW8T2 has been identified as a virulent pathogen for Artemia spp. Its infection route has been visualized with transmission electron microscopy. The pathogen affected microvilli and gut epithelial cells, disrupted epithelial cell junctions, and reached the body cavity, where it devastated cells and tissues. In vivo antagonism tests showed that preemptive colonization of the culture water with nine selected bacterial strains protected Artemia juveniles against the pathogenic effects. Two categories of the selected strains could be distinguished: (i) strains providing total protection, as no mortality occurred 2 days after the experimental infection with V. proteolyticus CW8T2, with strain LVS8 as a representative, and (ii) strains providing partial protection, as significant but not total mortality was observed, with strain LVS2 as a representative. The growth of V. proteolyticus CW8T2 in the culture medium was slowed down in the presence of strains LVS2 and LVS8, but growth suppression was distinctly higher with LVS8 than with LVS2. It was striking that the strains that gave only partial protection against the pathogen in the in vivo antagonism test showed also a restricted capability to colonize the Artemia compared to the strains providing total protection. The in vivo antagonism tests and the filtrate experiments showed that probably no extracellular bacterial compounds were involved in the protective action but that the living cells were required to protect Artemia against V. proteolyticus CW8T2.  (+info)

Antagonistic activity of Lactobacillus acidophilus LB against intracellular Salmonella enterica serovar Typhimurium infecting human enterocyte-like Caco-2/TC-7 cells. (7/570)

To gain further insight into the mechanism by which lactobacilli develop antimicrobial activity, we have examined how Lactobacillus acidophilus LB inhibits the promoted cellular injuries and intracellular lifestyle of Salmonella enterica serovar Typhimurium SL1344 infecting the cultured, fully differentiated human intestinal cell line Caco-2/TC-7. We showed that the spent culture supernatant of strain LB (LB-SCS) decreases the number of apical serovar Typhimurium-induced F-actin rearrangements in infected cells. LB-SCS treatment efficiently decreased transcellular passage of S. enterica serovar Typhimurium. Moreover, LB-SCS treatment inhibited intracellular growth of serovar Typhimurium, since treated intracellular bacteria displayed a small, rounded morphology resembling that of resting bacteria. We also showed that LB-SCS treatment inhibits adhesion-dependent serovar Typhimurium-induced interleukin-8 production.  (+info)

The role of normal flora in Giardia lamblia infections in mice. (8/570)

The presence of normal bacterial flora in the intestinal tract is thought to protect against colonization by pathogens. Only a few specific examples of this protection have been demonstrated for bacterial pathogens and protozoan infections. Mice from one commercial breeding farm were found to be less susceptible to infection with Giardia lamblia than were isogenic mice from another facility. When mice were housed together, resistance to infection was readily transferred to normally susceptible mice. After resistant mice were treated with neomycin, differences in susceptibility to infection were shown to be due to differences in the resident flora present in these mice. These results suggest the possible use of probiotic therapy for prevention of G. lamblia infections and may help explain some of the variability of outcomes seen in G. lamblia infections in humans.  (+info)

Antibiosis is a biological interaction between two or more organisms that is detrimental to at least one of them; it can also be an antagonistic association between an organism and the metabolic substances produced by another. Examples of antibiosis include the relationship between antibiotics and bacteria or animals and disease-causing pathogens. The study of antibiosis and its role in antibiotics has led to the expansion of knowledge in the field of microbiology. Molecular processes such cell wall synthesis and recycling, for example, have become better understood through the study of how antibiotics affect beta-lactam development through the antibiosis relationship and interaction of the particular drugs with the bacteria subjected to the compound. Antibiosis is typically studied in host plant populations and extends to the insects which feed upon them. Antibiosis resistance affects the biology of the insect so pest abundance and subsequent damage is reduced compared to that which would have ...
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Fermentation extracts from fungi isolated from vineyard ecosystems were tested for antimicrobial activities against a set of test microorganisms, including five food-borne pathogens (Staphylococcus aureus EP167, Acinetobacter baumannii (clinically is
The acquired resistances to antibiotics of animal pathogens are obviously obtained from microorganisms of the environment, which is ultimately the source and the sink of resistance genes. This Research Topic will focus on the source, generation, transfer and dissemination of resistance genes in the environment, especially in soil and water. The impact of agronomical practices, such as cattle supplements, field application of animal wastes and the use of GMOs, will be emphasized.
BioAssay record AID 6035 submitted by ChEMBL: Evaluated for the antagonistic activity against Serotonin 5-hydroxytryptamine 3 receptor in isolated perfused rabbit heart (RH).
As a member of the wwPDB, the RCSB PDB curates and annotates PDB data according to agreed upon standards. The RCSB PDB also provides a variety of tools and resources. Users can perform simple and advanced searches based on annotations relating to sequence, structure and function. These molecules are visualized, downloaded, and analyzed by users who range from students to specialized scientists.
This invention relates to a method for coating a medical device comprising the steps of applying to at least a portion of the surface of said medical device, an antimicrobial coating layer and a non-pathogenic bacterial coating layer, wherein the antimicrobial and non-pathogenic bacterial coating layers inhibit the growth of pathogenic bacterial and fungal organisms. The non-pathogenic bacterium used in the bacterial coating layer is resistant to the antimicrobial agent. Furthermore, the non-pathogenic bacterium layer includes at least one of the following: viable whole cells, non-viable whole cells, or cellular structures or extracts. The antimicrobial agent and non-pathogenic bacterium are used to develop a kit comprising these compositions in one container or in separate containers. The kit is used to coat a catheter prior to implantation in a mammal.
A total of 46 Lactobacillus isolates obtained from chicken intestine were assessed on their ability to adhere to the chicken ileal epithelial cell (IEC) in vitro. Twelve out of the 46 isolates showed moderate to good ability to adhere to the IEC. Temperature (between 4°C and 42°C) did not affect att
Read more about Predatory bacteria may wipe out superbugs: study on Business Standard. Predatory bacteria - that eat others of their kind - could be a new weapon in the fight against drug-resistant bacteria or superbugs, a new study suggests. A naturally occurring predatory bacterium is able to work with the immune system to clear
Probiotic nutrition is frequently claimed to improve human health. In particular, live probiotic bacteria obtained with food are thought to reduce intestinal colonization by pathogens, and thus to reduce susceptibility to infection. However, the mechanisms that underlie these effects remain poorly understood. Here we report that the consumption of probiotic Bacillus bacteria comprehensively abolished colonization by the dangerous pathogen Staphylococcus aureus in a rural Thai population. We show that a widespread class of Bacillus lipopeptides, the fengycins, eliminates S. aureus by inhibiting S. aureus quorum sensing-a process through which bacteria respond to their population density by altering gene regulation. Our study presents a detailed molecular mechanism that underlines the importance of probiotic nutrition in reducing infectious disease. We also provide evidence that supports the biological significance of probiotic bacterial interference in humans, and show that such interference can be
Lamiophlomis Rotate Capsules-For Bleeding and Pain [Product Name] Du Yi Wei Jiaonang/ Duyiwei Jiaonang/ Lamiophlomis Rotate Jiaonang/ Lamiophlomis Rotate Capsules [Ingredients] Lamiophlomis Rotate. (Duyiwei) [Properties] Capsule with brown powder; Slight fragrant, bitter. [Functions] promoting blood circulation to arrest pain, removing stasis and relieving pain. ( Huo Xue Zhi Tong, Hua Yu Zhi Xue ). It has four functions: analgesia, hemostasis, antibiosis and improving immunologic function. It is used for wound pain, bleeding, traumatic fracture, sprain, rheumatism arthralgia, uterine bleeding, dysmenorrheal and swelling and aching of gum. [Spec.] 24 pills /box. [Usage and Dosage] Take 3 pills per time, three times daily. [Adverse Reaction] Not yet proven. [Taboo] Pregnancy women are taboo. [Storage] Keep sealed in dry and cool place. [Cautions] 1. Pregnancy women are taboo. 2. Hypersensitivity to this product should stop using. 3. Do not use this product if expired. 4. Keep out of reach of children. 5.
Name: Cefixime Another name:8-[[2-(2-Amino-1,3-thiazol-4-yl)-2-(carboxymethoxyimino)acetyl]amino] -4-ethenyl-7-oxo-2-thia-6-azabicyclo[4.2.0]oct-4-ene-5-carboxylic acid Structural formula: C16H15N5O7S2 Molecular weight: 453.45 CAS NO: 79350-37-1 Appearance: white to off white powder or off white crystal powder; MP:218-225 degree Use: antibiosis drug Package: 25KG/Drum, 5kg/bag If you are ...
Name: Cefixime Another name:8-[[2-(2-Amino-1,3-thiazol-4-yl)-2-(carboxymethoxyimino)acetyl]amino] -4-ethenyl-7-oxo-2-thia-6-azabicyclo[4.2.0]oct-4-ene-5-carboxylic acid Structural formula: C16H15N5O7S2 Molecular weight: 453.45 CAS NO: 79350-37-1 Appearance: white to off white powder or off white crystal powder; MP:218-225 degree Use: antibiosis drug Package: 25KG/Drum, 5kg/bag If you are ...
The Genetics Society of America (GSA), founded in 1931, is the professional membership organization for scientific researchers and educators in the field of genetics. Our members work to advance knowledge in the basic mechanisms of inheritance, from the molecular to the population level.. Online ISSN: 1943-2631. ...
New clinical trial demonstrated statistically significant improvements in multiple indices of periodontal health following one month of probiotic BLIS M18 lozenge consumption.
Arsenal unveiled new signing Nacho Monreal on the same day that manager Arsene Wenger revealed fellow left back Kieran Gibbs will be out for up to eight weeks.
Multidrug-resistant (MDR) Gram-negative bacteria have emerged as a serious threat to human and animal health. Bdellovibrio spp. and Micavibrio spp. are Gram-negative bacteria that prey on other Gram-negative bacteria. In this study, the ability of Bdellovibrio bacteriovorus and Micavibrio aeruginosavorus to prey on MDR Gram-negative clinical strains was examined. Although the potential use of predatory bacteria to attack MDR pathogens has been suggested, the data supporting these claims is lacking. By conducting predation experiments we have established that predatory bacteria have the capacity to attack clinical strains of a variety of ß-lactamase-producing, MDR Gram-negative bacteria. Our observations indicate that predatory bacteria maintained their ability to prey on MDR bacteria regardless of their antimicrobial resistance, hence, might be used as therapeutic agents where other antimicrobial drugs fail.
11, Iuliana RAUT, Mariana CONSTANTIN, Gelu VASILESCU, Luiza JECU, Tatiana ŞESAN, Screening of antagonistic Trichoderma for biocontrol activities on phytopathogens
Production of bacteriocin-like inhibitory substances (BLIS) by Streptococcus salivarius strains isolated from the tongue and throat of children with and without sore throat ...
Lachnobacterium bovis ATCC ® BAA-151™ Designation: LRC 5382 TypeStrain=True Application: Produces bacteriocin-like inhibitory substance
An international team of researchers has solved a long-standing microbial mystery; the knowledge may help fight antibiotic resistant bacteria.
Wiley Online Library is migrating to a new platform powered by Atypon, the leading provider of scholarly publishing platforms. The new Wiley Online Library will be migrated over the weekend of February 24 and 25 and will be live on February 26, 2018. For more information, please visit our migration page:http://www.wileyactual.com/WOLMigration ...
A clinically-researched multistrain live bacteria for the gut-brain microbiome and intestinal barrier health, which works to support the immune response and tight junctions and to break down lipopolysaccharides. Also containing Probioact TechnologyPROBIOACT® stands for probiotic activity and is a technology developed b
In this virtual lab, grow two species of paremecium in test tubes and record data on their population growth. Experiment shows that when grown together, one species will die, illustrating the competitive exclusion principle.
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Mycoparasitism is considered a major contributor to fungus-fungus antagonism. The necrotrophs, primarily Trichoderma species, have a wider host range and less-specific mode of action, and perhaps for this reason more field and greenhouse trials have made use of these. Trichoderma species are focused in this chapter, because they have been the focus of the most work at the molecular and cellular levels. The interaction of Trichoderma with soilborne pathogenic fungi is an excellent example of necrotrophic mycoparasitism. Drastic reduction of intracellular cyclic AMP (cAMP) by knockout of adenylate cyclase leads to slow growth and loss of mycoparasitism in T. virens. In T. atroviride, mutants in the ortholog of the same mitogen-activated protein kinase (MAPK) gene, tmk1, showed increased coiling but reduced mycoparasitism in confrontation assays. A potentiation in the gene expression enables Trichoderma-treated plants to be more resistant to subsequent pathogen infection. Chytrids parasitizing vesicular
This study aimed to select an isolate of Lactobacillus spp. from the leaves of Pandanus amaryllifolius with the potential for biofilm development to inhibit various types of food-borne spoilage and pathogenic bacteria. The applicability and usefulness of the newly isolated strain, denoted as Lb. plantarum PA21, were extended via its capacity to express heterologous protein. The imaged biofilms and cell count results showed differences during the biofilm maturation periods. The ability of bacteria to adhere to the abiotic surface in plastic microtiter plates was measured using a conventional biofilm assay. The method offers some advantages compared to the study of biofilm formation in flow cells, which is an alternative widely used method. Watnick and Kotler [29] showed that the microtiter plate assay can be utilized to distinguish true biofilm formation similar to the biofilm grown in flow cells. This method appeared attractive for obtaining quantitative results based on CFU and optical ...
Read Evaluation of Lactic Acid Bacteria Isolated from Fermented Plant Products for Antagonistic Activity Against Urinary Tract Pathogen Staphylococcus saprophyticus, Probiotics and Antimicrobial Proteins on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
Secale cereale; Triticum aestivum; Mayetiola destructor; intergeneric hybridization; chromosome translocation; translocation lines; polyploidy; genetic resistance; antibiosis; larvae; mortality; chromosome ...
Just, H.M., Carneiro Leao, M.T.R., Daschner, F.D. und Andreesen, Reinhard (1987) Antibacterial activity of monocytes and macrophages against Staphylococcus aureus and Klebsiella pneumoniae in combination with Latamoxef. In: Szentiavanyi, A. und Friedman, H. und Gillissen, G., (eds.) Antibiosis and Host Immunity. Plenum Press, New York, S. 203-210. ISBN 0306426005; 978-0306426001. Im Publikationsserver gibt es leider keinen Volltext zu diesem Eintrag. ...
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Trichoderma harzianum QID74 protein: inducible cell wall protein isolated from Trichoderma harzianum; 25.3% identical to BR3 protein; amino acid sequence in first source
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Damping-off is caused by fungus and it usually occurs in small patches at various places in the seedbeds or field. The disease spots often increase from day to day until the seedlings harden. Seedlings are extremely susceptible for about two weeks after emergence. As the stem hardens and increases in size, the injury no longer occurs. Some seedlings are not killed at once, but the roots are severely damaged and the stem is girdled at the ground level. Such plants remain stunted and often do not survive transplanting. The injury from damping-off fungi is of two types ...
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This dataset contains the MD trajectories of complexes of Trichoderma harzianum GH7 (Cel7B) in complex with a variety of substrates/ligands
An oral-cavity probiotic, BLIS M18, significantly reduced the development of dental caries in children in a recent study, Blis Technologies and Stratum Nutrition say.
FK734 is a partial agonist of CD28 signaling that can reduce human T cell alloresponses in the presence of strong costimulation by B7 molecules in vitro and can reduce T cell-mediated skin allograft rejection in vivo.
Hydra is able to regenerate any part of its body to rebuild an entire individual. The head organizer performs two opposite activities, one activating, which causes the head to differentiate, and the other inhibiting, which prevents the formation of supernumerary heads. Researchers at UNIGE have discovered the identity of the inhibitor, called Sp5, and deciphered the dialogue between these two antagonistic activities, which helps maintain a single-headed adult body and organize an appropriate regenerative response.
The influence of inoculation dilution and cell-free culture fluids from Vp cultures on Vp growth rates.Cultures were grown in pre-warmed MB at 37 °C. Represe
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Sources of infection Infection is caused either by organisms from the hosts normal flora (endogenous infection) or by organisms transmitted from another source (exogenous infection). Endogenous infection The normal flora will only invade if circumstances permit, as in some of […]
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TY - JOUR. T1 - Biological control of damping-off of tomato caused by Pythium aphanidermatum by using native antagonistic rhizobacteria isolated from Omani soil. AU - Al-Hussini, Hanan S.. AU - Al-Rawahi, Amna Y.. AU - Al-Marhoon, Abdullah A.. AU - Al-Abri, Shurooq A.. AU - Al-Mahmooli, Issa H.. AU - Al-Sadi, Abdullah M.. AU - Velazhahan, Rethinasamy. PY - 2019/5/1. Y1 - 2019/5/1. N2 - The potential of antagonistic bacteria isolated from tomato rhizosphere soils of Oman in the control of damping-off disease of tomato was investigated. A total of 27 bacterial isolates were isolated from 18 soil samples collected from the rhizosphere of tomato from Al-Batinah South, Al-Sharqia North and Muscat Governorate. These bacterial isolates were tested in vitro for their antagonistic activity against Pythium aphanidermatum using a dual culture technique. Of the 27 bacterial isolates tested, four isolates designated D1/3, D1/8, D1/17 and D1/18 were effective in inhibiting the mycelial growth of P. ...
The unifying goal of our work is to develop new approaches for the prevention of urinary tract infection (UTI) in persons with spinal cord injury (SCI). Most individuals with SCI have neurogenic bladders, and the resulting urinary stasis and bladder catheterization predispose them to recurrent UTI. Currently few, if any, measures are effective at prevention of UTI in persons with neurogenic bladders.. Bacterial interference, or using benign bacteria to prevent infection with virulent pathogens, may offer a solution to the significant problem of recurrent episodes of UTI in persons with SCI. Two trials in persons with SCI of instilling nonpathogenic Escherichia coli (83972) directly into the bladder demonstrated a strong association between colonization with this non-pathogen and decreased frequency of UTI. However, the successful colonization rate of the direct inoculation method was low (51-62%). Since a urinary catheter-associated biofilm, or bacteria plus extracellular matrix, continually ...
Antibiosis is one of the widespread strategies used by Trichoderma spp. against plant fungal pathogens, the mechanism of which, however, remains poorly understood. Peptaibols are a large family of antimicrobial peptides produced by Trichoderma spp. Our previous study showed that trichokonins, a type of peptaibol from Trichoderma pseudokoningii SMF2, exhibited antibiotic activities against plant fungal pathogens. In this study, we first demonstrated that trichokonin VI (TK VI) induced extensive apoptotic programmed cell death in plant fungal pathogens. For a deeper insight into the apoptotic mechanism involved in the action of TK VI, Fusarium oxysporum was used as a model. Cells of F. oxysporum treated with TK VI showed apoptotic hallmarks, such as exposure of phosphatidylserine, the appearance of reactive oxygen species and fragmentation of nuclear DNA. Moreover, TK VI-treated cells exhibited an accumulation of cytoplasmic vacuoles with loss of the mitochondrial transmembrane potential, and this process
This topic has 4 study abstracts on Lactobacillus salivarius indicating that it may have therapeutic value in the treatment of Periodontal Diseases, Atopic Disease, and Immune Dysregulation: TH1/TH2 imbalance
The results of this study confirm that systemic administration of L salivarius 118 had an anti-inflammatory effect on colitis in IL-10 KO mice, demonstrating that the oral route is not mandatory for its effect. It is noteworthy that the anti-inflammatory effect was of comparable, but not superior, magnitude to that previously reported by us using the oral route of administration.9 Dosing and frequency of administration were arbitrary, with a compromise between exposure to the microbes while minimising stress to the animals. Whether alternative regimens would have a greater or lesser impact requires study. The results are not specific to this model, nor to intestinal inflammation, because the anti-inflammatory effect was also seen in a murine model of arthritis. This further supports an earlier observation that probiotic effects are not solely local, but may include systemic anti-inflammatory activity.9 The systemic nature of the probiotic activity is reflected in a decrease in proinflammatory ...
The Black Peach Aphid . The black peach aphid (Brachyeauclus persienecola), which is found in most peach-growing districts, attacks both the roots and the above-ground portioThe black peach aphid (Brachyeauclus persienecola), which is found in most peach-growing districts, attacks both the roots and the above-ground portions of the trees. Although the peach is its main. My Garden: gardening community, tips, tricks and more...
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This study explores the use of lactic acid bacteria from fresh salad vegetables to inhibit fungal growth. The antifungal assay was done using the agar well diffusion method as reported by Schillinger and Lucke (1989). The largest zone of inhibition (25mm) was recorded by the antagonistic activity of the isolate identified to Lactobacillus plantarum ...
Polycyclic amides 2 and 5-9 were successfully synthesised and their lipophilicity profiles were evaluated using reverse-phase HPLC. All synthesised compounds possessed P2X7R antagonistic properties when tested on rat spinal cord microglia cells. Extensive screening for binding to other neuroreceptor subtypes demonstrated their P2X7 selectivity ...
بیماری مرگ گیاهچه یکی از بیماری‌‌های مهم پنبه در مناطق مختلف کشور می باشد که همه ساله خسارت زیادی به مزارع پنبه‌کاری وارد می نماید. اخیراً، گونه‌های تریکودرما به عنوان یکی از روش‌های کنترل بیولوژیکی مرگ گیاهچه در نظر گرفته شده است. مهم‌ترین مکانیسم بیوکنترلی تریکودرما تحریک سیستم دفاعی گیاه است. در این بررسی ترشحات خارج سلولی دو جدایه متعلق به قارچ Trichoderma virense جدایه A224، بعنوان جدایه برتر و آنتاگونیست علیه قارچ Rhizoctonia solani عامل بیماری مرگ گیاهچه پنبه و جدایه A442 بعنوان جدایه غیر موثر در بیوکنترل مورد آزمایش قرار گرفتند. بررسی تغییرات فعالیت آنزیم
Coccinellids have been widely used in biological control for over a century, and the methods for using these predators have remained virtually unchanged. The causes for the relatively low rates of establishment of coccinellids in importation biological control have not been examined for most species …
Mushrooms produce inhibitive substances when threatened by a pathogen. This process of metabolite production could be the future of custom medicine.
View Notes - chapters 30 and 31 from MIBO 3500 at UGA. Chapters 30 & 31: Normal Flora of the Human Body and Nonspecific Immunity Do you have to know all the species of normal flora for every region?
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Free up valuable analysts time for other projects. All the steps of running an enzyme immunoassay manually, from pipetting, washing, to incubation are done by the instrument. Setting up a run is easy to do. At the end of a run, the instrument will provide a report, clearly identifying negative and positive results.. ...
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Foster W, Raoult A (December 1974). "Early descriptions of antibiosis". J R Coll Gen Pract. 24 (149): 889-94. PMC 2157443. PMID ... Antibiotics by Louis Pasteur and Jean Paul Vuillemin (by means of natural antibiosis; modern artificial antibiotics were ...
Antibiosis example- enzymes, toxins, antibiotics. Direct parasitism example- biotrophic or necrotrophic. competition example- ...
Weindling, R; Katznelson, H; Beale, H P (October 1950). "Antibiosis in Relation to Plant Diseases". Annual Review of ...
Resistance can be seen as antixenosis, tolerance and antibiosis. Ascia monuste monuste (southern United States to Surinam) ...
In the case of antibiosis, certain life stages of the soybean aphid may be more susceptible than others. For example, nymphs ... J. J. Diaz-Montano, J. C. Reese, W. T. Schapaugh & L. R. Campbell (2006). "Characterization of antibiosis and antixenosis to ... Resistance may be conferred by antibiosis, antixenosis, or tolerance. In some instances, such as with the soybean cultivars ' ... Dowling', 'Jackson', and 'Palmetto', resistance to the soybean aphid results from a combination of both antibiosis and ...
There are two types of amensalism, competition and antagonism (or antibiosis). Competition is where a larger or stronger ...
SB-K88 has been found to suppress damping-off disease in sugar beet and spinach through antibiosis and characteristic root ... Strain SB-K88 Is linked to plant colonization and antibiosis against soilborne Peronosporomycetes. Appl. Environ. Microbiol. 71 ...
Shuhang, Wang; Voorrips, Roeland E.; Steenhuis-Broers, Greet; Vosman, Ben; van Loon, Joop J. A. (2016-06-01). "Antibiosis ...
Johnson, K. B.; Stockwell, V. O.; Sugar, D; Loper, J. E. (November 2002). "Antibiosis Contributes to Biological Control of Fire ... that it is possible that habitat modification or exclusion may also play a role in the effectiveness of the antibiosis of the ...
antibiosis An association between two or more organisms that is detrimental to one or more of them. anticoagulin A substance ...
"A Bacterial Endophyte from Apoplast Fluids Protects Canola Plants from Different Phytopathogens via Antibiosis and Induction of ...
In 1888, Babeș underlies the principle of passive immunity, and a few years later enunciates the principle of antibiosis. He ...
... cell-to-cell recognition and antibiosis; however, only a fraction of these chemicals have been studied for their function. ...
... old laboratory notebooks from 1923 show records of the antibiosis of Penicillium sp. For this reason he is renowned as one of ...
Dijksterhuis J, Sanders M, Gorris LG, Smid EJ: Antibiosis plays a role in the context of direct interaction during antagonism ...
"Incorporation of lyophilized leaves and pods into artificial diets to assess the antibiosis component of resistance to pod ...
... antibiosis MeSH G04.185.515.120 - bacterial physiology MeSH G04.185.515.120.100 - bacterial adhesion MeSH G04.185.515.120.105 ...
... through anti-biosis (e.g. through toxicity to the insect) and by tolerating the damage caused by insects. Painter also ...
... is typically studied in host plant populations and extends to the insects which feed upon them. "Antibiosis ... "antibiosis". The Free Dictionary. KF, Kong (January 2010). "Beta-lactam antibiotics: from antibiosis to resistance and ... Antibiosis is a biological interaction between two or more organisms that is detrimental to at least one of them; it can also ... The study of antibiosis and its role in antibiotics has led to the expansion of knowledge in the field of microbiology. ...
Effective antibiosis is also paramount, and gentamicin is a good empirical choice (although there are some reports of ...
The term 'antibiosis', meaning "against life", was introduced by the French bacteriologist Jean Paul Vuillemin as a descriptive ... These observations of antibiosis between microorganisms led to the discovery of natural antibacterials. Louis Pasteur observed ... "Early descriptions of antibiosis". The Journal of the Royal College of General Practitioners. 24 (149): 889-94. PMC 2157443 ... "Early descriptions of antibiosis". The Journal of the Royal College of General Practitioners. 24 (149): 889-94. PMC 2157443 ...
... or antibiosis). Competition is where a larger or stronger organism deprives a smaller or weaker one from a resource. Antagonism ...
"The role of antibiosis in the antagonism of different bacteria towards Helminthosporium solani, the causal agent of potato ... to inhibit mycelial growth and/or conidial germination through the production of diffusible metabolites and that antibiosis was ...
... s are complex. Complexity is a measure of an increasing number of permutations and it is also a metaphorical term that conveys the mental intractability or limits concerning unlimited algorithmic possibilities. In food web terminology, complexity is a product of the number of species and connectance.[70][71][72] Connectance is "the fraction of all possible links that are realized in a network".[73]:12917 These concepts were derived and stimulated through the suggestion that complexity leads to stability in food webs, such as increasing the number of trophic levels in more species rich ecosystems. This hypothesis was challenged through mathematical models suggesting otherwise, but subsequent studies have shown that the premise holds in real systems.[70][74] At different levels in the hierarchy of life, such as the stability of a food web, "the same overall structure is maintained in spite of an ongoing flow and change of components."[75]:476 The farther a living system (e.g., ecosystem) ...
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 ...
There are several distinguishing features of an ecotone. First, an ecotone can have a sharp vegetation transition, with a distinct line between two communities.[4] For example, a change in colors of grasses or plant life can indicate an ecotone. Second, a change in physiognomy (physical appearance of a plant species) can be a key indicator. Water bodies, such as estuaries, can also have a region of transition, and the boundary is characterized by the differences in heights of the macrophytes or plant species present in the areas because this distinguishes the two areas' accessibility to light.[5] Scientists look at color variations and changes in plant height. Third, a change of species can signal an ecotone. There will be specific organisms on one side of an ecotone or the other. Other factors can illustrate or obscure an ecotone, for example, migration and the establishment of new plants. These are known as spatial mass effects, which are noticeable because some organisms will not be able to ...
which looks like a straight line on semilog axes, where area is logged and the number of species is arithmetic. In either case, the species-area relationship is almost always decelerating (has a negative second derivative) when plotted arithmetically.[9] Species-area relationships are often graphed for islands (or habitats that are otherwise isolated from one another, such as woodlots in an agricultural landscape) of different sizes.[3] Although larger islands tend to have more species, it is possible that a smaller island will have more than a larger one. In contrast, species-area relationships for contiguous habitats will always rise as areas increases, provided that the sample plots are nested within one another. The species-area relationship for mainland areas (contiguous habitats) will differ according to the census design used to construct it.[10] A common method is to use quadrats of successively larger size, so that the area enclosed by each one includes the area enclosed by the smaller ...
Plants usually convert light into chemical energy with a photosynthetic efficiency of 3-6%.[36] Absorbed light that is unconverted is dissipated primarily as heat, with a small fraction (1-2%)[37] re-emitted as chlorophyll fluorescence at longer (redder) wavelengths. This fact allows measurement of the light reaction of photosynthesis by using chlorophyll fluorometers.[37] Actual plants' photosynthetic efficiency varies with the frequency of the light being converted, light intensity, temperature and proportion of carbon dioxide in the atmosphere, and can vary from 0.1% to 8%.[38] By comparison, solar panels convert light into electric energy at an efficiency of approximately 6-20% for mass-produced panels, and above 40% in laboratory devices. The efficiency of both light and dark reactions can be measured but the relationship between the two can be complex.[39] For example, the ATP and NADPH energy molecules, created by the light reaction, can be used for carbon fixation or for photorespiration ...
Although the vast majority of life on Earth lives in mesophyllic (moderate) environments, a few organisms, most of them microbes, have managed to colonise extreme environments that are unsuitable for most higher life forms. There are bacteria, for example, living in Lake Whillans, half a mile below the ice of Antarctica; in the absence of sunlight, they must rely on organic material from elsewhere, perhaps decaying matter from glacier melt water or minerals from the underlying rock.[25] Other bacteria can be found in abundance in the Mariana Trench, the deepest place in the ocean and on Earth; marine snow drifts down from the surface layers of the sea and accumulates in this undersea valley, providing nourishment for an extensive community of bacteria.[26] Other microbes live in habitats lacking in oxygen, and are dependent on chemical reactions other than photosynthesis. Boreholes drilled 300 m (1,000 ft) into the rocky seabed have found microbial communities apparently based on the products of ...
... (FCR) is the ratio of inputs to outputs; it is the inverse of "feed efficiency" which is the ratio of outputs to inputs.[2] FCR is widely used in hog and poultry production, while FE is used more commonly with cattle.[2] Being a ratio the FCR is dimensionless, that is, it is not affected by the units of measurement used to determine the FCR.[3] FCR a function of the animal's genetics[4] and age,[5] the quality and ingredients of the feed,[5] and the conditions in which the animal is kept,[1][6] and storage and use of the feed by the farmworkers.[7] As a rule of thumb, the daily FCR is low for young animals (when relative growth is large) and increases for older animals (when relative growth tends to level out). However FCR is a poor basis to use for selecting animals to improve genetics, as that results in larger animals that costs more to feed; instead Residual Feed Intake (RFI) is used which is independent of size.[8] RFI uses for output the difference between actual ...
Antibiosis is typically studied in host plant populations and extends to the insects which feed upon them. "Antibiosis ... "antibiosis". The Free Dictionary. KF, Kong (January 2010). "Beta-lactam antibiotics: from antibiosis to resistance and ... Antibiosis is a biological interaction between two or more organisms that is detrimental to at least one of them; it can also ... The study of antibiosis and its role in antibiotics has led to the expansion of knowledge in the field of microbiology. ...
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Fermentation extracts from fungi isolated from vineyard ecosystems were tested for antimicrobial activities against a set of test microorganisms, including five food-borne pathogens (Staphylococcus aureus EP167, Acinetobacter baumannii (clinically is
Function and Antibiosis (9781402032066) by Arthur L. Koch and a great selection of similar New, Used and Collectible Books ...
Antibiosis: Regardless of allelic constitution at either rem1 or pr1, there was a substantial reduction in larval weight of the ... Antibiosis QTLs: Significant (P , 0.001) correlations were found between F2:3 family maysin levels and larval weight (r = −0.34 ... Genetic Mechanisms Underlying Apimaysin and Maysin Synthesis and Corn Earworm Antibiosis in Maize (Zea mays L.). E. A. Lee, P. ... Genetic Mechanisms Underlying Apimaysin and Maysin Synthesis and Corn Earworm Antibiosis in Maize (Zea mays L.). E. A. Lee, P. ...
Role and prevalence of antibiosis and the related resistance genes in the environment. ...
Instead, hyper-resistance in the ssi2 mutant results from heightened antibiosis that curtails insect reproduction. Petiole ... we suggest that basal PAD4 expression contributes to this antibiosis. ...
Find Complete Details about Manufacturer Bulk Natural Pure Eugenol Oil For Antibiosis,Eugenol Oil,Natural Pure Eugenol Oill, ... Natural Pure Eugenol Oil For Antibiosis from Flavour & Fragrance Supplier or Manufacturer-Jishui Ju Yuan Tang Natural Perfume ... Manufacturer Bulk Natural Pure Eugenol Oil For Antibiosis , ... manufacturer bulk natural pure Eugenol oil for antibiosis. Hot ...
... K-REx Repository. Search K-REx. This Collection. ... Antibiosis being the most effective host plant resistance category, this study was aimed at attempting to understand the ... Effect of previous feeding on antibiosis levels of soybeans. Viswanathan, Poornima The soybean aphid, Aphis glycines is ... effects of induction on the antibiosis levels of soybeans. In the first set of experiments, different soybean genotypes and two ...
... due to prolonged antibiosis in dogs including diagnosis and symptoms, pathogenesis, prevention, treatment, prognosis and more. ...
... New Zealand indication makes the case for a drugs use in the United States.. By Joseph W. Sowka, OD ...
You searched for: Subject antibiosis Remove constraint Subject: antibiosis Publication Year 2019 Remove constraint ... Evaluación de la Antibiosis, Antixenosis, y Tolerancia de Melanaphis sacchari/sorghi¹ en Híbridos de Sorgo ... Antibiosis of colonies developing on 5 nutrient media was tested. The 3 studied T. harzianum isolates differe .... DOI:. ... Two trials were set up, an antibiosis and a free-choice antixenosis test. Furthermore, the den .... DOI:. 10.1007/s12600-019- ...
Antibiosis effect of Bph33 The antibiosis experiment showed that the weight of honeydew secreted by BPH on NIL (+) (1.14 mg/ ... Antibiosis test. To test antibiosis, the amount (weight and area) of honeydew excreted by BPH and the survival rate of BPH were ... antibiosis and tolerance (Cohen et al. 1997). Among them, antibiosis is the major one conferred by almost all BPH resistance ... Antixenosis and antibiosis were two factors in the BPH resistance conferred by Bph33. Our results will facilitate map-based ...
You searched for: Subject antibiosis Remove constraint Subject: antibiosis Journal Theoretical and applied genetics Remove ... antibiosis, etc ; Nilaparvata lugens; Oryza sativa; Sogatella furcifera; backcrossing; cultivars; loci; major genes; pests; ... antibiosis, etc ; Aphis glycines; Glycine max; antixenosis; biotypes; chromosome mapping; crossing; cultivars; genetic markers ...
Weindling, R; Katznelson, H; Beale, H P (October 1950). "Antibiosis in Relation to Plant Diseases". Annual Review of ...
Antibiosis. Trichoderma spp. are rich and important sources of secondary metabolites (SMs) used for biological control of plant ... These include antibiosis, mycoparasitism, competition for nutrients and space, promotion of plant growth, induced plant defense ... The strain must not only have the potential mechanisms for biological control such as antibiosis and mycoparasitism but also a ... presumably because the research on Trichoderma focused on understanding the factors involved in antibiosis and mycoparasitism. ...
Antagonists acting through hyperparasitism and antibiosis are directly interfering with the pathogen. Such interactions are ... Antagonists acting through hyperparasitism and antibiosis are directly interfering with the pathogen. Such interactions are ... As a biased result, in self-fulfilling prophecy, in vitro assays may confirm the importance of in vitro antibiosis in ... Such an antibiosis will be restricted in time because of the short life span of antimicrobial metabolites in the environment. ...
Feminine Intimate Wash for Antibiosis & Contract the Vagina US $0.3-2.2 / Piece ...
Effective antibiosis is also paramount, and gentamicin is a good empirical choice (although there are some reports of ...
phylactic antibiosis.. stant rate infusions (CRIs) of short-acting opioids like fentanyl or alfentanil. ...
Download Antibiotics and Antibiosis in Agriculture by M. Woodbine PDF. April 1, 2018. admin Agriculture ... Antibiotics and Antibiosis in Agriculture: With specific connection with Synergism is a suite of papers facing the houses of ... different papers speak about the relationships of antibiotics and antibiosis to animals and animal feeds. This assortment will ... a few papers speak about purposes of antibiotics, antibiosis, tension results, and nutrients microbiology. those purposes ...
Bacillus spp.; perspectiva de su efecto biocontrolador mediante antibiosis en cultivos afectados por fitopatógenos Artículo ... Layton et al., C. (2011). Bacillus spp.; perspectiva de su efecto biocontrolador mediante antibiosis en cultivos afectados por ...
antibiosis (biology). plant disease: Biological control: …example of this process, called antibiosis, is provided by marigold ( ...
Antibiosis between ruminal bacteria and ruminal fungi. Article Abstract:. Research has been conducted on the cellulose ... Statistical Data Included, Research, Analysis, Bacteria, Fungi, Fermentation, Cellulose, Microbiological research, Antibiosis ... Antibiosis between ruminal bacteria and ruminal fungi ...
Antibiosis plate assays. Antibiosis assays were performed as previously described [76] with the following bacterial species: ... may be adaptive factors required for specific conditions that are not encountered in the laboratory or in our antibiosis assays ...
Compare with antibiosis. ∎ a mutually beneficial relationship between different people or groups: a perfect mother and daughter ...
... antibiosis, and tolerance -- are active in this relationship: preference by attraction, repellency, and synergism; antibiosis ...
... pathogenesis and antibiosis. LPP-1 is universal to all Pantoea spp. whose genomes have been sequenced to date and is derived ... LPP-1 encodes putative pathogenicity and antibiosis factors. The Hrp Type III secretion system represents one of the main ... Pusey PL, Stockwell VO, Reardon CL, Smits THM, Duffy B: Antibiosis activity of Pantoea agglomerans biocontrol strain E325 ... which suggests it may play a role in antibiosis and inter-bacterial competition [49]. The function of the T6SS in the various ...
This bioassay evaluated the antibiosis of ant-associated Pseudonocardia, non-ant-associated (free-living) Pseudonocardia and ... c) Experimental patterns in Pseudonocardia antibiosis against Escovopsis. Our symbiont bioassay experiments, pairing ant- ... Specificity in Pseudonocardia antibiosis. The results of a Petri plate bioassay experiment evaluating the antibiotic ...
Bacterial colonisation and infection remain the major causes of delayed healing and graft rejection following burns. Topical treatment is necessary to reduce the incidence of burn wound infection. Silver sulphadiazine (SD-Ag) is an often used microbicidal agent. However, this treatment produces adve …
  • The gene exhibited continuous and stable resistance from seedling stage to tillering stage, showing both antixenosis and antibiosis effects on BPH. (springer.com)
  • A reduced number of A. glycines was observed on the genotypes UX 2569-159-2-01 and UX 2570-171- 04, indicating the presence of antixenosis and/or antibiosis. (springer.com)
  • Diaz-Montano J, Reese JC, Schapaugh WT, Campbell LR (2006) Characterization of antibiosis and antixenosis to the soybean aphid (Hemiptera: Aphididae) in several soybean genotypes. (springer.com)
  • Pioneer experts suggest growers leverage antixenosis/antibiosis ratings and select soybean varieties with native tolerance as the first line of defense. (cornandsoybeandigest.com)
  • Antixenosis and antibiosis refer to natural characteristics that discourage aphids from feeding and reproducing, respectively, and these varieties provide some general protection from all aphid biotypes. (cornandsoybeandigest.com)
  • Antixenosis and antibiosis evaluations also can help growers prioritize scouting. (cornandsoybeandigest.com)
  • These categories included antixenosis, antibiosis and tolerance related to leaf colour and wax content. (freshplaza.com)
  • How the relationship between the insect and plant is affected depends on the kind of resistance, e.g. antibiosis, antixenosis (non-preference), or tolerance. (umn.edu)
  • Thus, tolerance resistance differs from antibiosis and antixenosis resistance in how it affects the insect-plant relationship. (umn.edu)
  • Antibiosis and antixenosis resistance cause an insect response when the insect attempts to use the resistant plant for food, oviposition, or shelter. (umn.edu)
  • Antibiosis resistance affects the biology of the insect so pest abundance and subsequent damage is reduced compared to that which would have occurred if the insect was on a susceptible crop variety. (wikipedia.org)
  • Antibiosis resistance often results in increased mortality or reduced longevity and reproduction of the insect. (wikipedia.org)
  • C-glycosyl flavones in maize silks confer resistance ( i.e. , antibiosis) to corn earworm ( Helicoverpa zea [Boddie]) larvae and are distinguished by their B-ring substitutions, with maysin and apimaysin being the di- and monohydroxy B-ring forms, respectively. (genetics.org)
  • Instead, hyper-resistance in the ssi2 mutant results from heightened antibiosis that curtails insect reproduction. (apsnet.org)
  • Antibiosis being the most effective host plant resistance category, this study was aimed at attempting to understand the effects of induction on the antibiosis levels of soybeans. (k-state.edu)
  • Analysis of the proteins encoded on LPP-1 also showed that these plasmids contribute to a wide range of Pantoea phenotypes, including the transport and catabolism of various substrates, inorganic ion assimilation, resistance to antibiotics and heavy metals, colonization and persistence in the host and environment, pathogenesis and antibiosis. (biomedcentral.com)
  • Conclusions] The results indicated that leaf feeding by MCB larvae can increase leaf antibiosis against MCB in two maize genotypes with contrasting levels of resistance against this borer. (csic.es)
  • The extent of fungal endophyte (Neotyphodium) based antibiosis resistance in temperate grasses (Lolium spp. (usda.gov)
  • Whether this antibiosis translates to resistance in terms of grain yield has yet to be shown. (usda.gov)
  • Further, the chances of resistance of pathogen against these methods are little as BAs employed often possess multitarget action-mechanisms such as antibiosis, competition, parasitism, and induction of host defense system. (springer.com)
  • Examples of antibiosis include the relationship between antibiotics and bacteria or animals and disease-causing pathogens. (wikipedia.org)
  • The study of antibiosis and its role in antibiotics has led to the expansion of knowledge in the field of microbiology. (wikipedia.org)
  • Molecular processes such cell wall synthesis and recycling, for example, have become better understood through the study of how antibiotics affect beta-lactam development through the antibiosis relationship and interaction of the particular drugs with the bacteria subjected to the compound. (wikipedia.org)
  • Antibiotics and Antibiosis in Agriculture: With specific connection with Synergism is a suite of papers facing the houses of penicillins, cephalosporins, sulfonamides, in addition to the synergistic mixtures of those and different antibacterial components. (apwebdesign.com)
  • a few papers speak about purposes of antibiotics, antibiosis, tension results, and nutrients microbiology. (apwebdesign.com)
  • different papers speak about the relationships of antibiotics and antibiosis to animals and animal feeds. (apwebdesign.com)
  • When a person's defense system cannot control antibiosis in its own favor, antibiotics are used to tip the balance toward health. (britannica.com)
  • The general relationship between an antibiotic and an infectious organism is one of antibiosis. (britannica.com)
  • Genetic Mechanisms Underlying Apimaysin and Maysin Synthesis and Corn Earworm Antibiosis in Maize (Zea mays L. (genetics.org)
  • El presente estudio documental evalúa el efecto biocontrolador del género Bacillus sp contra hongos fitopatógenos de plantas, particularmente, a través de relaciones antagónicas inductoras de muerte celular en términos inminentemente naturales. (unicolmayor.edu.co)
  • Antibiosis of vineyard ecosystem fungi against food-borne microorganisms. (biomedsearch.com)
  • plant disease: Biological control: …example of this process, called antibiosis, is provided by marigold (Tagetes species) roots, which release terthienyls, chemicals that are toxic to several species of nematodes and fungi. (britannica.com)
  • An additional QTL, represented by umc85 on the short arm of chromosome 6 , affected antibiosis (R 2 = 15.2%), but did not affect the synthesis of the C-glycosyl flavones. (genetics.org)
  • The strain must not only have the potential mechanisms for biological control such as antibiosis and mycoparasitism but also a strong competitive ability to displace the causative fungus G. boninense so as to reduce the pathogen's opportunity for root colonization. (intechopen.com)
  • In cases unresponsive to antibiosis, surgical removal of the affected gland(s) may be considered (seminal vesiculectomy). (vetstream.com)
  • Antagonists acting through hyperparasitism and antibiosis are directly interfering with the pathogen. (frontiersin.org)
  • strain SB-K88 root colonization and antibiosis of the bacterium against Aphanomyces cochlioides , a pathogen of damping-off disease. (asm.org)
  • In some cases this activity has been tentatively linked to the mechanism of antibiosis of the small molecule. (pnas.org)
  • Antibiosis is typically studied in host plant populations and extends to the insects which feed upon them. (wikipedia.org)
  • strain SB-K88 is likely due to a combination of antibiosis and characteristic biofilm formation at the rhizoplane of the host plant. (asm.org)
  • The relationship between human beings and disease-causing germs is one of antibiosis. (britannica.com)
  • 4. Could antibiosis, relief the pain of foot. (banggood.com)