Bradyrhizobiaceae: A proposed family of bacteria belonging to the alpha-2 subgroup of PROTEOBACTERIA.Achromobacter denitrificans: The type species of gram negative, aerobic bacteria in the genus ACHROMOBACTER. Previously in the genus ALCALIGENES, the classification and nomenclature of this species has been frequently emended. The two subspecies, Achromobacter xylosoxidans subsp. denitrificans and Achromobacter xylosoxidans subsp. xylosoxidans are associated with infections.Methylobacterium extorquens: A species of METHYLOBACTERIUM which can utilize acetate, ethanol, or methylamine as a sole carbon source. (From Bergey's Manual of Determinative Bacteriology, 9th ed)Chryseobacterium: A genus of aerobic, gram-negative bacteria in the family FLAVOBACTERIACEAE. Many of its species were formerly in the genus FLAVOBACTERIUM.Amoeba: A genus of ameboid protozoa. Characteristics include a vesicular nucleus and the formation of several lodopodia, one of which is dominant at a given time. Reproduction occurs asexually by binary fission.Chlamydiales: An order of obligately intracellular, gram-negative bacteria that have the chlamydia-like developmental cycle of replication. This is a two-stage cycle that includes a metabolically inactive infectious form, and a vegetative form that replicates by binary fission. Members of Chlamydiales are disseminated by aerosol or by contact. There are at least six recognized families: CHLAMYDIACEAE, Criblamydiaceae, Parachlamydiaceae, Rhabdochlamydia, Simkaniaceae, and Waddliaceae.Acanthamoeba: A genus of free-living soil amoebae that produces no flagellate stage. Its organisms are pathogens for several infections in humans and have been found in the eye, bone, brain, and respiratory tract.Rickettsia: A genus of gram-negative, aerobic, rod-shaped bacteria often surrounded by a protein microcapsular layer and slime layer. The natural cycle of its organisms generally involves a vertebrate and an invertebrate host. Species of the genus are the etiological agents of human diseases, such as typhus.Nitrogen Fixation: 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.Rhizobium: A genus of gram-negative, aerobic, rod-shaped bacteria that activate PLANT ROOT NODULATION in leguminous plants. Members of this genus are nitrogen-fixing and common soil inhabitants.Plants, Genetically Modified: PLANTS, or their progeny, whose GENOME has been altered by GENETIC ENGINEERING.Nitrogenase: An enzyme system that catalyzes the fixing of nitrogen in soil bacteria and blue-green algae (CYANOBACTERIA). EC 1.18.6.1.Plant Roots: 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)Nitrogen: 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.Methylococcaceae: A family of gram-negative, aerobic bacteria utilizing only one-carbon organic compounds and isolated from in soil and water.Methylophilaceae: A family of gram-negative bacteria in the order Methylophilales.Electron Probe Microanalysis: Identification and measurement of ELEMENTS and their location based on the fact that X-RAYS emitted by an element excited by an electron beam have a wavelength characteristic of that element and an intensity related to its concentration. It is performed with an electron microscope fitted with an x-ray spectrometer, in scanning or transmission mode.Leptothrix: A genus of gram-negative, sheathed, rod-shaped bacteria in the family COMAMONADACEAE.Metagenomics: The genomic analysis of assemblages of organisms.MiningMetals, Heavy: 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)Bradyrhizobium: A genus of gram-negative, aerobic, rod-shaped bacteria usually containing granules of poly-beta-hydroxybutyrate. They characteristically invade the root hairs of leguminous plants and act as intracellular symbionts.Rhizobiaceae: A family of gram-negative bacteria which are saprophytes, symbionts, or plant pathogens.Soybeans: An annual legume. The SEEDS of this plant are edible and used to produce a variety of SOY FOODS.Symbiosis: 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.Alphaproteobacteria: A class in the phylum PROTEOBACTERIA comprised mostly of two major phenotypes: purple non-sulfur bacteria and aerobic bacteriochlorophyll-containing bacteria.Rhodopseudomonas: A genus of gram-negative, rod-shaped, phototrophic bacteria found in aquatic environments. Internal photosynthetic membranes are present as lamellae underlying the cytoplasmic membrane.Receptor, TIE-2: A TIE receptor tyrosine kinase that is found almost exclusively on ENDOTHELIAL CELLS. It is required for both normal embryonic vascular development (NEOVASCULARIZATION, PHYSIOLOGIC) and tumor angiogenesis (NEOVASCULARIZATION, PATHOLOGIC).Metatarsophalangeal Joint: The articulation between a metatarsal bone (METATARSAL BONES) and a phalanx.Superoxide Dismutase: An oxidoreductase that catalyzes the reaction between superoxide anions and hydrogen to yield molecular oxygen and hydrogen peroxide. The enzyme protects the cell against dangerous levels of superoxide. EC 1.15.1.1.Cuba: An island in the Greater Antilles in the West Indies, south of Florida. With the adjacent islands it forms the Republic of Cuba. Its capital is Havana. It was discovered by Columbus on his first voyage in 1492 and conquered by Spain in 1511. It has a varied history under Spain, Great Britain, and the United States but has been independent since 1902. The name Cuba is said to be an Indian name of unknown origin but the language that gave the name is extinct, so the etymology is a conjecture. (From Webster's New Geographical Dictionary, 1988, p302 & Room, Brewer's Dictionary of Names, 1992, p132)Nitrobacter: A genus of gram-negative, rod-shaped bacteria that oxidizes nitrites to nitrates. Its organisms occur in aerobic environments where organic matter is being mineralized, including soil, fresh water, and sea water.Autotrophic Processes: The processes by which organisms use simple inorganic substances such as gaseous or dissolved carbon dioxide and inorganic nitrogen as nutrient sources. Contrasts with heterotrophic processes which make use of organic materials as the nutrient supply source. Autotrophs can be either chemoautotrophs (or chemolithotrophs), largely ARCHAEA and BACTERIA, which also use simple inorganic substances for their metabolic energy reguirements; or photoautotrophs (or photolithotrophs), such as PLANTS and CYANOBACTERIA, which derive their energy from light. Depending on environmental conditions some organisms can switch between different nutritional modes (autotrophy; HETEROTROPHY; chemotrophy; or PHOTOTROPHY) to utilize different sources to meet their nutrient and energy requirements.Sewage: Refuse liquid or waste matter carried off by sewers.Gram-Negative Bacteria: Bacteria which lose crystal violet stain but are stained pink when treated by Gram's method.Nitrosomonas: A genus of gram-negative, ellipsoidal or rod-shaped bacteria whose major source of energy and reducing power is from the oxidation of ammonia to nitrite. Its species occur in soils, oceans, lakes, rivers, and sewage disposal systems.Flagella: A whiplike motility appendage present on the surface cells. Prokaryote flagella are composed of a protein called FLAGELLIN. Bacteria can have a single flagellum, a tuft at one pole, or multiple flagella covering the entire surface. In eukaryotes, flagella are threadlike protoplasmic extensions used to propel flagellates and sperm. Flagella have the same basic structure as CILIA but are longer in proportion to the cell bearing them and present in much smaller numbers. (From King & Stansfield, A Dictionary of Genetics, 4th ed)Nitrites: Salts of nitrous acid or compounds containing the group NO2-. The inorganic nitrites of the type MNO2 (where M=metal) are all insoluble, except the alkali nitrites. The organic nitrites may be isomeric, but not identical with the corresponding nitro compounds. (Grant & Hackh's Chemical Dictionary, 5th ed)Interleukin-6 Receptor alpha Subunit: A low affinity interleukin-6 receptor subunit that combines with the CYTOKINE RECEPTOR GP130 to form a high affinity receptor for INTERLEUKIN-6.Sinorhizobium meliloti: 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.ArizonaBrazilTourette Syndrome: A neuropsychological disorder related to alterations in DOPAMINE metabolism and neurotransmission involving frontal-subcortical neuronal circuits. Both multiple motor and one or more vocal tics need to be present with TICS occurring many times a day, nearly daily, over a period of more than one year. The onset is before age 18 and the disturbance is not due to direct physiological effects of a substance or a another medical condition. The disturbance causes marked distress or significant impairment in social, occupational, or other important areas of functioning. (From DSM-IV, 1994; Neurol Clin 1997 May;15(2):357-79)MexicoBiota: The spectrum of different living organisms inhabiting a particular region, habitat, or biotope.Quercetin: A flavonol widely distributed in plants. It is an antioxidant, like many other phenolic heterocyclic compounds. Glycosylated forms include RUTIN and quercetrin.History, 15th Century: Time period from 1401 through 1500 of the common era.Bacteria: 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.Click Chemistry: Organic chemistry methodology that mimics the modular nature of various biosynthetic processes. It uses highly reliable and selective reactions designed to "click" i.e., rapidly join small modular units together in high yield, without offensive byproducts. In combination with COMBINATORIAL CHEMISTRY TECHNIQUES, it is used for the synthesis of new compounds and combinatorial libraries.Phylogeny: The relationships of groups of organisms as reflected by their genetic makeup.RNA, Ribosomal, 16S: Constituent of 30S subunit prokaryotic ribosomes containing 1600 nucleotides and 21 proteins. 16S rRNA is involved in initiation of polypeptide synthesis.DNA, Ribosomal: DNA sequences encoding RIBOSOMAL RNA and the segments of DNA separating the individual ribosomal RNA genes, referred to as RIBOSOMAL SPACER DNA.Molecular Sequence Data: 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.Reagent Kits, Diagnostic: 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.

Ammonia- and nitrite-oxidizing bacterial communities in a pilot-scale chloraminated drinking water distribution system. (1/31)

Nitrification in drinking water distribution systems is a common operational problem for many utilities that use chloramines for secondary disinfection. The diversity of ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) in the distribution systems of a pilot-scale chloraminated drinking water treatment system was characterized using terminal restriction fragment length polymorphism (T-RFLP) analysis and 16S rRNA gene (ribosomal DNA [rDNA]) cloning and sequencing. For ammonia oxidizers, 16S rDNA-targeted T-RFLP indicated the presence of Nitrosomonas in each of the distribution systems, with a considerably smaller peak attributable to Nitrosospira-like AOB. Sequences of AOB amplification products aligned within the Nitrosomonas oligotropha cluster and were closely related to N. oligotropha and Nitrosomonas ureae. The nitrite-oxidizing communities were comprised primarily of Nitrospira, although Nitrobacter was detected in some samples. These results suggest a possible selection of AOB related to N. oligotropha and N. ureae in chloraminated systems and demonstrate the presence of NOB, indicating a biological mechanism for nitrite loss that contributes to a reduction in nitrite-associated chloramine decay.  (+info)

Bosea minatitlanensis sp. nov., a strictly aerobic bacterium isolated from an anaerobic digester. (2/31)

A strictly aerobic, mesophilic bacterium, strain AMX 51(T), was isolated from anaerobic digester sludge. Cells were Gram-negative, motile, non-sporulating, straight to curved rods with one polar flagellum. The isolate had phenotypic traits of the genus Bosea, including cellular fatty acid and substrate utilization profiles. Physiological characteristics and antibiotic susceptibility were determined. Phylogenetic analysis revealed that strain AMX 51(T) was a member of the alpha-Proteobacteria, most closely related to Bosea thiooxidans DSM 9653(T) (similarity of 98.88 %). Methylobacterium organophilum JCM 2833(T), Methylobacterium mesophilicum JCM 2829(T), Afipia clevelandensis DSM 7315(T), Afipia felis DSM 7326(T), Afipia broomeae DSM 7327(T), Blastobacter denitrificans LMG 8443(T) and Bradyrhizobium japonicum DSM 30131(T) showed significant 16S rRNA gene sequence similarities to strain AMX 51(T). The DNA G+C composition of strain AMX 51(T) was 68.5 mol%. DNA-DNA hybridization analysis revealed 44.2 and 15.1 % relatedness between strain AMX 51(T) and the respective type strains of Bosea thiooxidans and A. felis. Overall results suggest that strain AMX 51(T) (=DSM 13099(T)=ATCC 700918(T)=CIP 106457(T)) represents a novel species of the genus Bosea; the name Bosea minatitlanensis sp. nov. is proposed.  (+info)

Usefulness of rpoB gene sequencing for identification of Afipia and Bosea species, including a strategy for choosing discriminative partial sequences. (3/31)

Bacteria belonging to the genera Afipia and Bosea are amoeba-resisting bacteria that have been recently reported to colonize hospital water supplies and are suspected of being responsible for intensive care unit-acquired pneumonia. Identification of these bacteria is now based on determination of the 16S ribosomal DNA sequence. However, the 16S rRNA gene is not polymorphic enough to ensure discrimination of species defined by DNA-DNA relatedness. The complete rpoB sequences of 20 strains were first determined by both PCR and genome walking methods. The percentage of homology between different species ranged from 83 to 97% and was in all cases lower than that observed with the 16S rRNA gene; this was true even for species that differed in only one position. The taxonomy of Bosea and Afipia is discussed in light of these results. For strain identification that does not require the complete rpoB sequence (4,113 to 4,137 bp), we propose a simple computerized method that allows determination of nucleotide positions of high variability in the sequence that are bordered by conserved sequences and that could be useful for design of universal primers. A fragment of 740 to 752 bp that contained the most highly variable area (positions 408 to 420) was amplified and sequenced with these universal primers for 47 strains. The variability of this sequence allowed identification of all strains and correlated well with results of DNA-DNA relatedness. In the future, this method could be also used for the determination of variability "hot spots" in sets of housekeeping genes, not only for identification purposes but also for increasing the discriminatory power of sequence typing techniques such as multilocus sequence typing.  (+info)

Isolation of novel bacteria and actinomycetes using soil-extract agar medium. (4/31)

Novel bacteria were discovered using an isolation technique consisting of (i) selection of microorganisms that grew on soil-extract agar medium, but not on conventional media, and (ii) detection of small microbial colonies with a microscope. Three bacterial strains thus isolated were provisionally designated Shinshu-th1, -th2, -th 3, and five actinomycete strains, Shinshu-MS-01, -02, -03, -04, -05, respectively. Sequence analysis of their 16S rDNA showed that th1 had 95--96% homology with three unculturable bacteria, and th2 had 96% similarity to Bradyrhizobium sp., one unculturable and one unidentified bacterial strain. A phylogenetic study indicated that both strains were alpha-Proteobacteria belonging to the order Rhizobiales and the family Bradyrhizobiaceae. Since they had low homology (96%) with their close relatives, it is possible that th1 and th2 belong to a new genus. The actinomycetes Shinshu-MS-02 and -03 had 95--96% homology with four strains of Actinomadura, -04 had 95--96% similarity to Streptosporangium and Microbispora, and -05 had 97--98% homology with three strains of Acrocarpospora, Herbidospora and Planotetraspora. According to the phylogenetic study, both 02 and 03 are possibly new species of Actinomadura, -04 of Streptosporangium, and -05 of Acrocarpospora. Shinshu-th 3 and -MS-01 were identified as Mycobacterium cookii and Frankia sp., respectively, having 99% homology with these species.  (+info)

Dynamics of viable nitrifier community, N-mineralization and nitrification in seasonally dry tropical forests and savanna. (5/31)

The study was conducted in Vindhyan region, to assess the N-mineralization, nitrification and size of viable community of ammonium- and nitrite-oxidizing bacteria as affected by different sites and seasons. Six different ecosystems (four forests and two savannas), which differ in terms of topography, vegetation and moisture status, were selected for the present study. The soils of the study sites differ significantly in its physico-chemical properties. The savanna site had significantly higher pH (7.2), bulk density (1.37 g cm(-3)) and silt content (67.80%) but lower water holding capacity (1.37%), total-C (16,356 microg g(-1) dry soil), N (1090 microg g(-1) dry soil) and P (213 microg g(-1) dry soil) than forest sites. The soil moisture content, N-mineralization, nitrification rates and numbers of ammonium- and nitrite-oxidizing bacteria were highest in the wet season and lowest in dry season, while the size of mineral-N (NH4(+)-N and NO3(-)-N) showed a reverse trend at the sites. The N-mineralization, nitrification and nitrifier population size differ significantly across the site and season. The numbers of free-living cells of ammonium- and nitrite-oxidizing bacteria were significantly related to each other and to N-mineralization, nitrification, soil moisture and mineral-N components. The N-mineralization, nitrification and the viable number of nitrifying cells were consistently higher for forest soils compared to savanna sites. It was concluded that soil microbial process (N-mineralization and nitrification) and nitrifier population size were dependent on site topography, vegetation cover and soil moisture status.  (+info)

Rhodoblastus sphagnicola sp. nov., a novel acidophilic purple non-sulfur bacterium from Sphagnum peat bog. (6/31)

An isolate of purple non-sulfur bacteria was obtained from an acidic Sphagnum peat bog and designated strain RS(T). The colour of cell suspensions of this bacterium growing in the light under anaerobic conditions is purplish red. Cells of strain RS(T) are rod-shaped, 0.8-1.0 microm wide and 2.0-6.0 microm long, motile by means of polar flagella, reproduce by budding and have a tendency to form rosette-like clusters in older cultures. The cells contain lamellar intracytoplasmic membranes underlying, and parallel to, the cytoplasmic membrane. The photosynthetic pigments are bacteriochlorophyll a and carotenoids; the absorption spectrum of living cells shows maxima at 377, 463, 492, 527, 592, 806 and 867 nm. The cells grow photoheterotrophically under anaerobic or microaerobic conditions with various organic carbon sources or grow photolithoautotrophically with H(2) and CO(2). Strain RS(T) is a moderately acidophilic organism exhibiting growth at pH values between 4.8 and 7.0 (with an optimum at pH 5.2-5.5). The major fatty acids are 16 : 1omega7c and 18 : 1omega7c; the major quinones are Q-10 and Q-9. The DNA G + C content of strain RS(T) is 62.6 mol%. Analysis of the 16S rRNA gene sequence revealed that the novel isolate is most closely related (97.3 % sequence similarity) to the type strain ATCC 25092(T) of the moderately acidophilic purple non-sulfur bacterium Rhodoblastus acidophilus, formerly named Rhodopseudomonas acidophila. However, in contrast to Rbl. acidophilus, strain RS(T) is not capable of aerobic growth in the dark, has no spirilloxanthin among the carotenoids and differs in the pattern of substrate utilization. The value for DNA-DNA hybridization between strain RS(T) and Rbl. acidophilus ATCC 25092(T) is only 22 %. Thus, strain RS(T) represents a novel species of the genus Rhodoblastus, for which the name Rhodoblastus sphagnicola sp. nov. is proposed. Strain RS(T) (=DSM 16996(T) = VKM B-2361(T)) is the type strain.  (+info)

Nitric oxide reductase-targeted real-time PCR quantification of denitrifier populations in soil. (7/31)

The quantification of denitrifying bacteria is a component in the further understanding of denitrification processes in the environment. Real-time PCR primers were designed to target two segments of the denitrifier population (cnorB(P) [Pseudomonas mandelii and closely related strains] and cnorB(B) [Bosea, Bradyrhizobium, and Ensifer spp.]) in agricultural soils based on functional cnorB (nitric oxide reductase) gene sequences. Total population numbers were measured using 16S rRNA gene real-time PCR. Two soil microcosm experiments were conducted. Experiment 1 examined the response of the indigenous soil microbial population to the addition of 500 mg/kg glucose-C daily over 7 days in soil microcosms. Changes in the total population were correlated (r = 0.83) between 16S rRNA gene copy numbers and microbial biomass carbon estimates. Members of the cnorB(P) population of denitrifiers showed typical r-strategy by being able to increase their proportion in the total population from starting levels of <0.1% to around 2.4% after a daily addition of 500 mg/kg glucose-C. The cnorB(B) guild was not able to increase its relative percentage of the total population in response to the addition of glucose-C, instead increasing copy numbers only in proportion with the total population measured by 16S rRNA genes. Experiment 2 measured population dynamics in soil after the addition of various amounts of glucose-C (0 to 500 mg/kg) and incubation under denitrifying conditions. cnorB(P) populations increased proportionally with the amount of glucose-C added (from 0 to 500 mg/kg). In soil microcosms, denitrification rates, respiration, and cnorB(P) population densities increased significantly with increasing rates of glucose addition. cnorB(B) guild densities did not increase significantly under denitrifying conditions in response to increasing C additions.  (+info)

Nitric and nitrous oxide reductases are active under aerobic conditions in cells of Thiosphaera pantotropha. (8/31)

Use of Clark-type electrodes has shown that, in cells of Thiosphaera pantotropha, the nitrous oxide reductase is active in the presence of O2, and that the two gases involved (N2O, O2) are reduced simultaneously, but with mutual inhibition. Reduction of nitrate, or nitrite, to N2O under aerobic conditions involves NO as an intermediate, as judged by trapping experiments with the ferric form of extracellular horse heart cytochrome c and the demonstration that the cells possess a nitric oxide reductase activity. The overall conversion of nitrate to N2, the process of denitrification, under aerobic conditions, is thus not prevented by reaction of NO with O2 and depends upon a nitrous oxide reductase system which differs from that in other organisms by being neither directly inhibited nor inactivated by O2.  (+info)

*Bradyrhizobiaceae

The Bradyrhizobiaceae are a family of bacteria, with ten genera. They include plant-associated bacteria such as Bradyrhizobium ... nov., a new genus in the family Bradyrhizobiaceae isolated from Robinia pseudoacacia in Flanders (Belgium)". Systematic and ...

*Rhizobiales

Genus Bradyrhizobium, family Bradyrhizobiaceae. In: Bergey's Manual of Systematic Bacteriology, 2nd Edition, 2nd Volume. George ... The four families Bradyrhizobiaceae, Hyphomicrobiaceae, Phyllobacteriaceae, and Rhizobiaceae contain at least six genera of ... Balneimonas is currently included in Bradyrhizobiaceae. Meganema is currently included in Methylobacteriaceae. Beck, D. A. C.; ...

*Rhizobiaceae

Blastobacter capsulatus is currently classified in the Bradyrhizobiaceae. These species were formerly classified in the genus ...

*Rhodoblastus

... is a genus of bacteria from the family of Bradyrhizobiaceae. LPSN bacterio.net UniProt Don J. Brenner; Noel R. ...

*Rhodopseudomonas

nov., a new genus in the family Bradyrhizobiaceae isolated from soil in Thailand" [Syst. Appl. Microbiol. 33 (2010) 374-382]. ... nov., a new genus in the family Bradyrhizobiaceae isolated from soil in Thailand". Systematic and Applied Microbiology. 33 (7 ... Rhodopseudomonas is a genus of bacteria from the family of Bradyrhizobiaceae. "Genus Rhodopseudomonas". List of Prokaryotic ...

*Blastobacter

... is a genus of bacteria from the family of Bradyrhizobiaceae. Most of the species originally ascribed to ...

*Afipia

... is a genus of bacteria from the family of Bradyrhizobiaceae. LPSN bacterio.net Lo, S. C.; Hung, G. C.; Li, B.; Lei, H.; ...

*Tardiphaga

... is a genus of bacteria from the family of Bradyrhizobiaceae. De Meyer, SE; Coorevits, A; Willems, A (June 2012). " ... nov., a new genus in the family Bradyrhizobiaceae isolated from Robinia pseudoacacia in Flanders (Belgium)". Systematic and ...

*Bosea (bacteria)

Bosea is a genus of bacteria from the family of Bradyrhizobiaceae. Parte, A.C. "Bosea". www.bacterio.net. UniProt Parker, ...

*Bradyrhizobium jicamae

... is a Gram-negative, strictly aerobic bacteria from the genus of Bradyrhizobiaceae. LPSN bacterio.net ...

*Tardiphaga robiniae

nov., a new genus in the family Bradyrhizobiaceae isolated from Robinia pseudoacacia in Flanders (Belgium)". Systematic and ... nov., a new genus in the family Bradyrhizobiaceae isolated from Robinia pseudoacacia in Flanders (Belgium)". Systematic and ...

*Variibacter

... is a genus of bacteria from the family of Bradyrhizobiaceae with one known species (Variibacter gotjawalensis). ...

*Imidacloprid

... of a Novel 6-Chloronicotinic Acid Chlorohydrolase from the Newly Isolated 6-Chloronicotinic Acid Mineralizing Bradyrhizobiaceae ...

*Nitrobacteraceae

Bradyrhizobiaceae, a family of bacteria also said to contain the genus Nitrobacter Nitrosomonadaceae, a family of bacteria also ...

*Bosea

... a genus of bacteria in the Bradyrhizobiaceae family Bosea (plant), a genus of plants in the Amaranthaceae family. ...

*List of bacteria genera

Family Beijerinckiaceae Genus Beijerinckia Genus Chelatococcus Genus Derxia Genus Methylocella Family Bradyrhizobiaceae Genus ...

*List of MeSH codes (B03)

... bradyrhizobiaceae MeSH B03.440.400.425.200.040 --- Afipia MeSH B03.440.400.425.200.090 --- Bradyrhizobium MeSH B03.440.400.425. ... bradyrhizobiaceae MeSH B03.660.050.035.040 --- Afipia MeSH B03.660.050.035.090 --- Bradyrhizobium MeSH B03.660.050.035.520 --- ...
4-Chloronicotinic acid 10177-29-4 NMR spectrum, 4-Chloronicotinic acid H-NMR spectral analysis, 4-Chloronicotinic acid C-NMR spectral analysis ect.
Sulfur is an essential element for life and the metabolism of organic sulfur compounds plays an important role in the global sulfur cycle. Sulfur occurs in various oxidation states ranging from +6 in sulfate to -2 in sulfide (H2S). Sulfate reduction can occur in both an energy consuming assimilatory pathway and an energy producing dissimilatory pathway. The assimilatory pathway, which is found in a wide range of organisms, produces reduced sulfur compounds for the biosynthesis of S-containing amino acids and does not lead to direct excretion of sulfide. In the dissimilatory pathway, which is restricted to obligatory anaerobic bacterial and archaeal lineages, sulfate (or sulfur) is the terminal electron acceptor of the respiratory chain producing large quantities of inorganic sulfide. Both pathways start from the activation of sulfate by reaction with ATP to form adenylyl sulfate (APS). In the assimilatory pathway [MD:M00176] APS is converted to 3-phosphoadenylyl sulfate (PAPS) and then reduced ...
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ID RHOPS_1_PE1007 STANDARD; PRT; 528 AA. AC RHOPS_1_PE1007; Q13CE2; DT 00-JAN-0000 (Rel. 1, Created) DT 00-JAN-0000 (Rel. 2, Last sequence update) DT 00-JAN-0000 (Rel. 3, Last annotation update) DE SubName: Full=Peptidase C14, caspase catalytic subunit p20; DE (RHOPS_1.PE1007). GN OrderedLocusNames=RPD_1009; OS RHODOPSEUDOMONAS PALUSTRIS BISB5. OC Bacteria; Proteobacteria; Alphaproteobacteria; Rhizobiales; OC Bradyrhizobiaceae; Rhodopseudomonas. OX NCBI_TaxID=316057; RN [0] RP -.; RG -.; RL -.; CC -!- SEQ. DATA ORIGIN: Translated from the HOGENOM CDS RHOPS_1.PE1007. CC Rhodopseudomonas palustris BisB5, complete genome. CC sequence. CC -!- ANNOTATIONS ORIGIN:Q13CE2_RHOPS CC -!- GENE_FAMILY: HOG000272520 [ FAMILY / ALN / TREE ] DR UniProtKB/Swiss-Prot; Q13CE2; -. DR EMBL; CP000283; ABE38247.1; -; Genomic_DNA. DR RefSeq; YP_568148.1; NC_007958.1. DR ProteinModelPortal; Q13CE2; -. DR STRING; Q13CE2; -. DR GeneID; 4021484; -. DR GenomeReviews; CP000283_GR; RPD_1009. DR KEGG; rpd:RPD_1009; -. DR ...
ID B3Q835_RHOPT Unreviewed; 172 AA. AC B3Q835; DT 02-SEP-2008, integrated into UniProtKB/TrEMBL. DT 02-SEP-2008, sequence version 1. DT 25-OCT-2017, entry version 60. DE RecName: Full=Superoxide dismutase [Cu-Zn] {ECO:0000256,RuleBase:RU000393}; DE EC=1.15.1.1 {ECO:0000256,RuleBase:RU000393}; GN OrderedLocusNames=Rpal_0224 {ECO:0000313,EMBL:ACE98784.1}; OS Rhodopseudomonas palustris (strain TIE-1). OC Bacteria; Proteobacteria; Alphaproteobacteria; Rhizobiales; OC Bradyrhizobiaceae; Rhodopseudomonas. OX NCBI_TaxID=395960 {ECO:0000313,EMBL:ACE98784.1, ECO:0000313,Proteomes:UP000001725}; RN [1] {ECO:0000313,EMBL:ACE98784.1, ECO:0000313,Proteomes:UP000001725} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=TIE-1 {ECO:0000313,EMBL:ACE98784.1, RC ECO:0000313,Proteomes:UP000001725}; RG US DOE Joint Genome Institute; RA Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., RA Tice H., Pitluck S., Chain P., Malfatti S., Shin M., Vergez L., RA Lang D., Schmutz J., Larimer F., Land ...
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Blastobacter denitrificans 16S ribosomal RNA gene, partial sequence;tRNA-Ile and tRNA-Ala genes, complete sequence; and 23S ribosomal RNA gene,partial ...
As with similar questions about a tree in the forest or a grain of sand on the beach, it may be hard to imagine that a few inches of rain matters to the deep ocean.
What gives sea air its distinctive scent? A chemical compound called dimethylsulfide. In a new study, WHOI scientists show that the compound may also be used by marine microbes to communicate with one another.
Close The Infona portal uses cookies, i.e. strings of text saved by a browser on the users device. The portal can access those files and use them to remember the users data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser. ...
Chemolithoautotrophic Bacteria von Tateo Yamanaka und Buchbewertungen gibt es auf ReadRate.com. Bücher können hier direkt online erworben werden.
Autotrophic ammonium oxidation in membrane-aerated biofilm reactors (MABRs) can make treatment of ammonium-rich wastewaters more energy-efficient, especially within the context of short-cut ammonium removal. The challenge is to exclusively enrich ammonium-oxidizing bacteria (AOB). To achieve nitritation, strategies to suppress nitrite-oxidizing bacteria (NOB) are needed, which are ideally grounded on an understanding of underlying mechanisms. In this study, a nitrifying MABR was operated under intermittent aeration. During eight months of operation, AOB dominated, while NOB were suppressed. On the basis of dissolved oxygen (DO), ammonium, nitrite, and nitrate profiles within the biofilm and in the bulk, a 1-dimensional nitrifying biofilm model was developed and calibrated. The model was utilized to explore the potential mechanisms of NOB suppression associated with intermittent aeration, considering DO limitation, direct pH effects on enzymatic activities, and indirect pH effects on activity via ...
Metabolic network showing the number of O. carboxidovorans proteins identified in each COG category in the current study.Proteins (referred by locus tag number
Lineage: cellular organisms; Bacteria; Proteobacteria; Gammaproteobacteria; Chromatiales; Chromatiaceae; Nitrosococcus; Nitrosococcus ...
Publisher: Frontiers Media S.A.. Date Issued: 4/14/16. Abstract: An ammonia-oxidizing bacterium, strain D1FHS, was enriched into pure culture from a sediment sample retrieved in Jiaozhou Bay, a hyper-eutrophic semi-closed water body hosting the metropolitan area of Qingdao, China. Based on initial 16S rRNA gene sequence analysis, strain D1FHS was classified in the genus Nitrosococcus, family Chromatiaceae, order Chromatiales, class Gammaproteobacteria; the 16S rRNA gene sequence with highest level of identity to that of D1FHS was obtained from Nitrosococcus halophilus Nc4T. The average nucleotide identity between the genomes of strain D1FHS and N. halophilus strain Nc4 is 89.5%. Known species in the genus Nitrosococcus are obligate aerobic chemolithotrophic ammonia-oxidizing bacteria adapted to and restricted to marine environments. The optimum growth (maximum nitrite production) conditions for D1FHS in a minimal salts medium are: 50 mM ammonium and 700 mM NaCl at pH of 7.5 to 8.0 and at 37 ...
The biocathodic reduction of nitrate in Microbial Fuel Cells (MFCs) is an alternative to remove nitrogen in low carbon to nitrogen wastewater and relies entirely on microbial activity. In this paper the community composition of denitrifiers in the cathode of a MFC is analysed in relation to added electron acceptors (nitrate and nitrite) and organic matter in the cathode. Nitrate reducers and nitrite reducers were highly affected by the operational conditions and displayed high diversity. The number of retrieved species-level Operational Taxonomic Units (OTUs) for narG, napA, nirS and nirK genes was 11, 10, 31 and 22, respectively. In contrast, nitrous oxide reducers remained virtually unchanged at all conditions. About 90% of the retrieved nosZ sequences grouped in a single OTU with a high similarity with Oligotropha carboxidovorans nosZ gene. nirS-containing denitrifiers were dominant at all conditions and accounted for a significant amount of the total bacterial density. Current production ...
Nitrifying biofilters degrading the four regulated trihalomethanes (THMs) trichloromethane (TCM), bromodichloromethane (BDCM), dibromochloromethane (DBCM), and tribromomethane (TBM) -were analyzed for the presence and activity of ammonia-oxidizing bacteria (AOB). Biofilter performance and batch kinetic tests performed on biofilm removed during backwashing verified that the biofilters contained organisms capable of degrading the four regulated THMs commonly found in treated drinking water. Quantitative PCR (qPCR) and amoA sequence analysis provided evidence that the Nitrosomonas oligotropha was the only AOB present. N. oligotropha is typically associated with drinking water distribution system AOB communities, and their presence in these biofilters might indicate that their tolerance to THMs is another reason for their dominance in chloraminated drinking water systems. ...
This chapter presents the latest information on nitrification in inland waters, and deals mostly with ammonium-oxidizing bacteria (AOB) as they are primarily important for the onset of the process of nitrification, although their activity might be influenced by the presence of active nitrite-oxidizing bacteria, especially after starvation for ammonium. Nitrification in lakes takes place in the sediment as well as in the water column. As in lakes, nitrification in streams and rivers occurs primarily in the oxic surface layers of the sediment. The use of the amoA gene led to quite different results: no amoA gene fragments related to the Nitrosospira lineage were found in any of the compartments; whereas the pelagic and the epiphytic compartments had only amoA gene fragments of the N. oligotropha lineage, and the benthic compartments contained a mixture of fragments of the N. oligotropha, N. europaea, and Nitrosomonas sp. Nm143 lineages. In summary, nitrification in streams and rivers appears to be
Nitritasi: oksidasi amonia menjadi nitrit oleh bakteri nitrit. Proses ini dilakukan oleh kelompok bakteri Nitrosomonas dan Nitrosococcus.[1] Reaksi nitritasi. • Nitratasi: oksidasi senyawa nitrit menjadi nitrat oleh bakteri nitrat. Proses ini dilakukan oleh kelompok bakteri Nitrobacter.[1] Reaksi nitratasi. Beberapa proses penting pada siklus nitrogen. Kandungan nitrogen pada purinadan pirimidina yang didapat dari asam amino glutamina. mineralisasi. sehingga istilah nukleotida esensial kurang tepat. artinya asam amino tersebut tidak dapat dihasilkan dari asupan nutrisi senyawa lain. . Oleh sebab itu. Walaupun terdapat sangat banyak molekul nitrogen di dalam atmosfer. denitrifikasi. yang telah punah dalam perjalanan evolusi makhluk vertebrata. reaksi fiksasi nitrogen sering disebut proses topping-up atau fungsi penambahan pada tersedianya cadangan senyawa nitrogen. sedikit sekali makhluk hidup yang dapat menyerap senyawa nitrogen yang terbentuk dari alam tersebut.[4] Dalam bidang pertanian. ...
General Information: Temp: Mesophile; Habitat: Marine. Nitrosococcus halophilus is an obligate chemolithotroph oxidizing ammonia to nitrite. It has been isolated from saline ponds. ...
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The very narrow, actually a 200 km-plus-long sinuous rille, apparently traced remarkably fast south from the Marius Hills "Yulu" double-volcano source nearly to Flamsteed P crater, through the bleak center of Oceanus Procellarum. Nearby Kepler crater (outside this view, to the right and east) added the bright ejecta rays. This view is distilled from a mosaic of LROC Wide Angle Camera (WAC) observations swept up over five sequential orbits during local early local morning, allowing long shadows to add some relief to this remarkably flat area of the lunar surface, all of it averaging below 2000 meters in elevation. LROC WAC mosaic from LRO orbits 6838 through 6842, December 18, 2010; 79° incidence angle, resolution 58 meters from 41.5 km [NASA/GSFC/Arizona State University ...
GAEA or GE (Gaia or Gê), the personification of the earth. She appears in the character of a divine being as early as the Homeric poems, for we read in the Iliad (iii. 104) that black sheep were sacrificed to her, and that she was invoked by persons taking oaths. (iii. 278, xv. 36, xix. 259, Od. v. 124.) She is further called, in the Homeric poems, the mother of Erechtheus and Tithyus. (Il. ii. 548, Od. vii. 324, xi. 576; comp. Apollon. Rhod. i. 762, iii. 716. According to the Theogony of Hesiod (117, 12,5, &c.), she was the first being that sprang front Chaos, sand gave birth to Uranus and Pontus. By Uranus she then became the mother of a series of beings, -- Oceanus, Coeus, Creius, Hyperion, Iapetus, Theia, Rheia, Themis, Mnemosyne, Phoebe, Thetys, Cronos, the Cyclopes, Brontes, Steropes, Arges, Cottus, Briareus, and Gyges. These children of Ge and Uranus were hated by their father, and Ge therefore concealed. them in the bosom of the earth; but she made a large iron sickle, gave it to her ...
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Floodplain lakes are wetlands which receive flood waters from nearby rivers or other sources. Water samples were taken from floodplain lakes near the Illinois River, the Mississippi River, and the Cache River in Southern Illinois. Fluorescence in situ hybridization (FISH), spectrophotometry, and gene probes were used to investigate the effect of nutrient and chemical concentrations on the abundance of nitrifying bacteria; specifically ammonia-oxidizing Nitrosococcus and Nitrosomonadales and nitrite-oxidizing Nitrospira and Nitrobacter. Nitrosococcus was the dominant ammonia-oxidizing bacteria at each river system. Nitrospira and Nitrobacter had similar average abundances. Nitrosococcus abundances showed a significant positive correlation with nitrate (NO3-) (R2= 0.247, P=0.05, 95% confidence R2≥0.199) and a positive trend with nitrite (NO2-) (R2= 0.194, P=0.10, 90% confidence R2≥0.125). Nitrosomonadales abundance positively correlated with temperature (R2= 0.530, P=0.05, 95% confidence R2≥0.510).
Susceptibility of ammonia-oxidizing bacteria to nitrification inhibitors.: Activity of nitrification inhibitors to several typical ammonia-oxidizing bacteria is
Ammonia-Oxidizing Bacteria AOB Definition - Ammonia-oxidizing bacteria (the Nitrosomonas genus) play an important role in the nitrification process. Their...
Looking for online definition of ammonia-oxidizing bacteria in the Medical Dictionary? ammonia-oxidizing bacteria explanation free. What is ammonia-oxidizing bacteria? Meaning of ammonia-oxidizing bacteria medical term. What does ammonia-oxidizing bacteria mean?
Ammonia-oxidizing bacteria and nitrite-oxidizing bacteria are participants in both the C and N cycles and together carry out the process of nitrification. Nitrification can influence both biogeochemical cycles through its effect on N availability to organisms. Nitrification influences the concentration of greenhouse gases in the atmosphere by production of NO and N2O and by influencing consumption of CO2. Most molecular investigations of these bacteria have focused on single genes and enzymes involved in the oxidation of ammonia or nitrite. However, with the sequencing of the genomes of representative nitrifiers, it is possible to examine the entire complement of genes involved in assimilating CO2 and oxidizing NH3 or NO2- and the coordination of their expression. We are exploiting the whole genome sequence information of Nitrosomonas europaea using genomic technology to understand its genetic structure and molecular regulatory mechanisms. The availability of complete genome sequences for ...
Spatial distribution of ammonia-oxidizing bacteria in the biofilm and suspended growth biomass of the full- and partial-bed biological aerated ...
RuBisCO catalyzes two reactions: the carboxylation of D-ribulose 1,5-bisphosphate, the primary event in carbon dioxide fixation, as well as the oxidative fragmentation of the pentose substrate. Both reactions occur simultaneously and in competition at the same active site.
April 29. Loading day. I traveled to Oregon with graduate students Lindy Fine and Dong Yoon Lee yesterday. This morning with help from Joe Needoba we loaded a U-haul truck with equipment at OHSU in Hillsboro and then drove to Newport Oregon to meet the ship. We then spent the rest of the day loading a lot of equipment and supplies onto the R/V Oceanus in Newport, OR, and testing equipment and sensors. Murray Levine, Fred Prahl, and David Langler drove over from Corvallis to help set up our new 12L Owen Tube, which was fashioned from an externally-closed Ocean Dynamics horizontal niskin bottle (see picture). We deployed the new Owen Tube several times to work out our sampling routine. Later that evening we started setting up our amazingly heavy CTD frame, which is designed to handle the extreme currents in the Columbia River estuary without being washed away from the ship.. ...
Five cruises were conducted, two transects from coastal New England to the BATS site (R/V Endeavor cruise EN351 and R/V Oceanus cruise OC413) and three transects across the Florida Straits (R/V Walton Smith cruises WS0503, WS0518, WS0528) with characteristics as in Table 1. Samples were collected in surface and DCM waters using a Sea-Bird Niskin Rosette equipped with standard CTD and PAR detectors (see also below). For DNA extraction samples, 1 l of seawater was gravity filtered through 2 um pore size filters (GE Osmonics, Minnetonka, MN, USA) and then onto a 0.45 um pore size (2001) or 0.2 um pore size (2005) Supor filter (Pall Gelman, Ann Arbor, MI, USA) using vacuum. For FISH samples whole seawater (no size fractionation) was preserved with 1% paraformaldahyde (final concentration) for at least 1 h in the dark at 4°C. For each replicate, volumes of 180 ml or more of seawater were gently filtered onto a 25 mm, 0.2 um Anodisc filter (Whatman, Maidstone, England). The filters were then ...
Tykhe, which was called Fortune by the Romans, is the daughter of the goddess of the seas and rivers, Oceanus. Regarded as the goddess of fortune and success in ancient Greece, Tykhe sculptures generally hold a horn of fruitfulness or a boat steer, which is believed to manage people
Can you name the Goaulds from SG-1? Test your knowledge on this television quiz to see how you do and compare your score to others. Quiz by oz_lizard
Caldanaerovirga acetigignens gen. nov., sp. nov., an anaerobic xylanolytic, alkalithermophilic bacterium isolated from Trego Hot Spring, Nevada, USA.. PubMed. Wagner, Isaac D; Ahmed, Sibtain; Zhao, Weidong; Zhang, Chuanlun L; Romanek, Christopher S; Rohde, Manfred; Wiegel, Juergen. 2009-11-01. An anaerobic thermophilic bacterium, designated strain JW/SA-NV4(T), was isolated from a xylan-supplemented enrichment culture from Trego hot spring located within the Black Rock Desert (NV, USA). Cells were generally straight or slightly bent rod-shaped, 0.4-0.8 microm in width and 3-6 microm in length during exponential growth. Cells from stationary phase were variable in size and shape, showing curved or bent morphology. Motility was not seen and flagella were not observed in electron micrographs. Sporulation was not observed. Strain JW/SA-NV4(T) stained Gram-negative but is phylogenetically Gram-type positive. Growth occurred at pH(25 degrees C) 6.8-8.8, with optimum growth at pH 8.4; no growth ...
Nitrification, the oxidation of ammonia via nitrite to nitrate, has always been considered to be catalyzed by the concerted activity of ammonia- and nitrite-oxidizing microorganisms. Only recently, complete ammonia oxidizers (comammox), which oxidize ammonia to nitrate on their own, were identified in the bacterial genus Nitrospira, previously assumed to contain only canonical nitrite oxidizers. Nitrospira are widespread in nature, but for assessments of the distribution and functional importance of comammox Nitrospira in ecosystems, cultivation-independent tools to distinguish comammox from strictly nitrite oxidizing Nitrospira are required. Here we developed new PCR primer sets that specifically target the amoA genes coding for subunit A of the distinct ammonia monooxygenase of comammox Nitrospira. While existing primers capture only a fraction of the known comammox amoA diversity, the new primer sets cover as much as 95% of the comammox amoA clade A and 92% of the clade B sequences in a ...
Lunar Orbiter 3 high resolution image of the Surveyor 1 spacecraft and landing site. This image shows the area within the Flamsteed ring in Oceanus Procellarum on the moon. The spacecraft is the bright spot at the center of the red circle. The shadow of the 1 meter wide solar panels can also be seen. The width of the framelets (the spacing between the horizontal lines on the image) is about 220 meters. (Lunar Orbiter 3, frame 194-H3) ...
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Looking for online definition of Nitrosomonas in the Medical Dictionary? Nitrosomonas explanation free. What is Nitrosomonas? Meaning of Nitrosomonas medical term. What does Nitrosomonas mean?
pp 64-69 cytomegalovirus matrix protein: MW 69,000; made late; principal tegument constituent of virions, non-infectious enveloped particles & dense bodies; phosphorylated in vivo & is one of the three predominant phosphate acceptors in vitro for the particle-associated protein kinase; MW may vary from 64,000-69,000
Article Case study - Increasing oxidizer capacity by 80,000 SCFM. Overview A recreational products company bought a three year-old manufacturing facility with an existing regenerative thermal oxidizer (RTO) for the production of their outboard engin...
Oops! Total brain freeze on that one. Of course the Secs are civilian, and I wish Stargate SG-1 was still in production because Mark Welsh, the...
She walks over to Daniel. Daniel attempts to jump Carter and he and Melosha are then shot with darts by the rest of the team.] EXT-SHOT OF MINOAN STYLE TEMPLE FROM FAR OFF-LIGHT SIDE P3X-797 EXT-CLOSE SHOT OF MINOAN STYLE TEMPLE-LIGHT SIDE P3X-797 [SG-1 and SG-3 climb the stairs, Tealc carrying Daniel over his shoulders.] INT-MINOAN STYLE TEMPLE-LIGHT SIDE P3X-797 [SG-1 and SG-3 walk up to Tuplo and his entourage.] ...
Find trailers, reviews, synopsis, awards and cast information for Stargate SG-1: Season 01 (1997) - on AllMovie - Called back to active duty by Gen. George Hammond…
She walks over to Daniel. Daniel attempts to jump Carter, and he and Melosha are then shot with darts by the rest of the team.] EXT-MINOAN STYLE TEMPLE FROM FAR OFF-LIGHT SIDE P3X-797 EXT-CLOSE SHOT OF MINOAN STYLE TEMPLE-LIGHT SIDE P3X-797 [SG-1 and SG-3 climb the stairs, Tealc carrying Daniel over his shoulders.] INT-MINOAN STYLE TEMPLE-LIGHT SIDE P3X-797 [SG-1 and SG-3 walk up to Tuplo and his entourage.] ...
Nitrification is the process within the global Nitrogen Cycle where ammonia (NH3) is oxidized to nitrate (NO₃⁻) and can be carried out by two distinct groups of bacteria. The ammonia-oxidizing bacteria (AOB) first oxidize NH₃ to nitrite (NO₂⁻), and second, the nitrite-oxidizing bacteria (NOB) oxidize NO₂⁻ to NO₃⁻. In aerobic conditions, in either natural or engineered systems, nitrifying bacteria often compete for oxygen (O₂). In nitrification, low O₂ environments can cause the accumulation of NH₃, NO₂⁻ and the greenhouse gases NO and N₂O, compounds that can be detrimental to the environment. This work examined the effects of O₂ limitation on the AOB Nitrosomonas europaea and the NOB Nitrobacter hamburgensis, and determined their transcriptome responses under replete and limiting O₂. When grown in co-culture with replete O₂, both N. europaea and N. hamburgensis were capable of consuming ~99% of the available NH₃, or NO₂⁻, accordingly, and grew to 0.35 ...
Nitrification is the biological oxidation of ammonia or ammonium to nitrite followed by the oxidation of the nitrite to nitrate. The transformation of ammonia to nitrite is usually the rate limiting step of nitrification. Nitrification is an important step in the nitrogen cycle in soil. Nitrification is an aerobic process performed by small groups of autotrophic bacteria and archaea. This process was discovered by the Russian microbiologist Sergei Winogradsky. The oxidation of ammonia into nitrite is performed by two groups of organisms, ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA). AOB can be found among the β-proteobacteria and gammaproteobacteria. Currently, two AOA, Nitrosopumilus maritimus and Nitrososphaera viennensis, have been isolated and described. In soils the most studied AOB belong to the genera Nitrosomonas and Nitrosococcus. Although in soils ammonia oxidation occurs by both AOB and AOA, AOA dominate in both soils and marine environments, suggesting that ...
ABSTRACT: Nitrification rates, bacterial abundance and productivity, and the diversity of ammonia-oxidizing bacteria were measured at 5 sites in Elkhorn Slough, a small estuary in central California, between 1997 and 1999. Of the sampling sites, 2 received high nutrient runoff from agricultural fields and other non-point sources, and 3 received runoff from grasslands and woodlands. The diversity of ammonia-oxidizing bacteria in terms of DNA sequences was investigated at 3 of the sites in August 1998. Both 16S and amoA sequences from sediment samples were more closely related to those of Nitrosomonas marina than to any other cultured nitrifier, but there was considerable diversity within the group, and site-specific patterns were not detected. Potential nitrification was seasonally and spatially variable, with the highest rates occurring at the head of Elkhorn Slough in late winter and fall. Bacterial productivity was highest during the summer and generally higher at a site adjacent to grasslands ...
Many studies on bacterial community composition (BCC) do not distinguish between particle-associated (PA) and free-living (FL) bacteria or neglect the PA fraction by pre-filtration removing most particles. Although temporal and spatial gradients in environmental variables are known to shape BCC, it remains unclear how and to what extent PA and FL bacterial diversity responds to such environmental changes. To elucidate the BCC of both bacterial fractions related to different environmental settings, we studied surface samples of three Baltic Sea stations (marine, mesohaline and oligohaline) in two different seasons (summer and fall/winter). Amplicon sequencing of the 16S rRNA gene revealed significant differences in BCC of both bacterial fractions among stations and seasons, with a particularly high number of PA operational taxonomic units (OTUs at genus-level) at the marine station in both seasons.
Soil nitrification, the oxidation of ammonia to nitrate, is and driven by bacterial and archaeal autotrophic ammonia oxidisers (AOB and AOA) that carry out the first, rate limiting, step of oxidising ammonia to nitrite. Previous work has suggested that adaptation and selection in AOA and AOB communities is, to some extent, pH driven. Acidophilic, acido-neutral, and alkalinophilic groups have been identified by environmental surveys of amoA genes. These studies of the role of pH in determining ammonia oxidiser community structure and activity have largely relied on spatial pH gradients. In many managed soil systems (e.g., agricultural systems) edaphic factors (e.g., pH, N concentrations) vary widely temporally and the implications of short term temporal shifts in factors thought to govern oxidiser community structure, and therefore our ability to manipulate edaphic factors to direct community structure, are not well understood. We investigated the roles of pH in driving nitrifier activity ...
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Difference between revisions of Nitrobacter hamburgensis - microbewikiDifference between revisions of "Nitrobacter hamburgensis" - microbewiki

Nitrobacter hamburgensis, gram negative bacteria, was isolated from soil of the Old Botanic Garden in Hamburg and of a corn field in Yucatan. The main types of environments they inhabit are soil, building sandstone, and sewage sludge. Its cells are 0.5-0.8 x 1.2-2.0 m in size. They are pleomorphic; mostly pear-shaped and motile via one subpolar to lateral flagellum. Intracytoplasmic membranes appear as caps of flattened vesicles or membrane vesicles in the central region of the cell. The bacteria have an enzyme capable of oxidizing nitrite. This is why it is important to sequence the genome of N. hamburgensis ...
more infohttps://microbewiki.kenyon.edu/index.php?title=Nitrobacter_hamburgensis&diff=7187&oldid=7164

Bradyrhizobiaceae - WikipediaBradyrhizobiaceae - Wikipedia

The Bradyrhizobiaceae are a family of bacteria, with ten genera. They include plant-associated bacteria such as Bradyrhizobium ... nov., a new genus in the family Bradyrhizobiaceae isolated from Robinia pseudoacacia in Flanders (Belgium)". Systematic and ...
more infohttps://en.wikipedia.org/wiki/Bradyrhizobiaceae

Draft genome sequence of Bosea sp. WAO an arsenite and sulfide oxidizer isolated from a pyrite rock outcrop in New Jersey |...Draft genome sequence of Bosea sp. WAO an arsenite and sulfide oxidizer isolated from a pyrite rock outcrop in New Jersey |...

WAO (=DSM 102914), a novel strain of the genus Bosea in the family Bradyrhizobiaceae. Boseasp. WAO was... ... WAO belongs to the class Alphaproteobacteria and family Bradyrhizobiaceae which currently consists of 12 genera: Bradyrhizobium ... Bradyrhizobiaceae fam. nov. In: Garrity G, Brenner DJ, Krieg NR, Staley JT, editors. Bergeys manual® of systematic ... WAO (=DSM 102914), a novel strain of the genus Bosea in the family Bradyrhizobiaceae. Bosea sp. WAO was isolated from ...
more infohttps://link.springer.com/article/10.1186/s40793-018-0312-4

Plants  | Free Full-Text | Molecular Analyses of the Distribution and Function of Diazotrophic Rhizobia and Methanotrophs in...Plants | Free Full-Text | Molecular Analyses of the Distribution and Function of Diazotrophic Rhizobia and Methanotrophs in...

Bradyrhizobiaceae (Bradyrhizobium, Rhodopseudomonas) Burkholderiaceae. Rhizosphere from paddy rice field of Fujian province, ...
more infohttps://www.mdpi.com/2223-7747/8/10/408/htm

SWISSPROT: Q13DS8 RHOPSSWISSPROT: Q13DS8 RHOPS

Bradyrhizobiaceae; Rhodopseudomonas. OX NCBI_TaxID=316057 {ECO:0000313,EMBL:ABE37761.1, ECO:0000313,Proteomes:UP000001818}; RN ...
more infohttp://pbil.univ-lyon1.fr/cgi-bin/acnuc-search-ac?query=Q13DS8&db=SWISSPROT

SWISSPROT: Q13DX2 RHOPSSWISSPROT: Q13DX2 RHOPS

Bradyrhizobiaceae; Rhodopseudomonas. OX NCBI_TaxID=316057 {ECO:0000313,EMBL:ABE37717.1, ECO:0000313,Proteomes:UP000001818}; RN ...
more infohttp://pbil.univ-lyon1.fr/cgi-bin/acnuc-search-ac?query=Q13DX2&db=SWISSPROT

Frontiers | Physiological and Metagenomic Analyses of Microbial Mats Involved in Self-Purification of Mine Waters Contaminated...Frontiers | Physiological and Metagenomic Analyses of Microbial Mats Involved in Self-Purification of Mine Waters Contaminated...

Bradyrhizobiaceae; N, Sphingomonadaceae; O, Rhodobacteraceae; P, Geobacteraceae (B) Families differing in abundance between ... and Bradyrhizobiaceae families (Figure 4B). A minor difference in the community structure was also observed at the species/ ...
more infohttps://www.frontiersin.org/articles/10.3389/fmicb.2016.01252/full

UniProt/TrEMBL: G7D4G7 BRAJPUniProt/TrEMBL: G7D4G7 BRAJP

Bradyrhizobiaceae; Bradyrhizobium. OX NCBI_TaxID=1037409 {ECO:0000313,EMBL:BAL12208.1, ECO:0000313,Proteomes:UP000005663}; RN [ ...
more infohttp://www.genome.jp/dbget-bin/www_bget?tr:G7D4G7_BRAJP

UniProt/TrEMBL: B3Q835 RHOPTUniProt/TrEMBL: B3Q835 RHOPT

Bradyrhizobiaceae; Rhodopseudomonas. OX NCBI_TaxID=395960 {ECO:0000313,EMBL:ACE98784.1, ECO:0000313,Proteomes:UP000001725}; RN ...
more infohttp://www.genome.jp/dbget-bin/www_bget?tr:B3Q835_RHOPT

Difference between revisions of Nitrobacter hamburgensis - microbewikiDifference between revisions of "Nitrobacter hamburgensis" - microbewiki

Bacteria; Proteobacteria; Alphaproteobacteria; Rhizobiales; Bradyrhizobiaceae; Nitrobacter; Nitrobacter hamburgensis (1) ...
more infohttps://microbewiki.kenyon.edu/index.php?title=Nitrobacter_hamburgensis&diff=prev&oldid=64967

Bradyrhizobium : Wikis (The Full Wiki)Bradyrhizobium : Wikis (The Full Wiki)

Familia: Bradyrhizobiaceae. Genus: Bradyrhizobium. Spieces: Bradyrhizobium japonicum - Bradyrhizobium sp. BTAi1 - ...
more infohttp://www.thefullwiki.org/Bradyrhizobium

Large-scale replicated field study of maize rhizosphere identifies heritable microbes | PNASLarge-scale replicated field study of maize rhizosphere identifies heritable microbes | PNAS

Bradyrhizobiaceae, Burkholderia, Rhizobium, Sphingomonas, and Oxalobacteraceae). The sweet-corn inbred lines harbor mutations ... Bradyrhizobiaceae, Devosia), two Betaproteobacteria (both Comamonadaceae), and two Gammaproteobacteria (Pseudomonas and ...
more infohttps://www.pnas.org/content/115/28/7368?ijkey=507681aeb7a9e1f5a5ce5cdb010e47083c262cc2&keytype2=tf_ipsecsha

WoRMS - World Register of Marine Species - Rhodopseudomonas palustris (Molisch, 1907) van Niel, 1944WoRMS - World Register of Marine Species - Rhodopseudomonas palustris (Molisch, 1907) van Niel, 1944

basis of record Megx.net: integrated database resource for marine ecological genomics Renzo Kottmann; Ivalyo Kostadinov; Melissa Beth Duhaime; Pier Luigi Buttigieg; Pelin Yilmaz; Wolfgang Hankeln; Jost Waldmann; Frank Oliver Glockner Nucleic Acids Res. 2009 , available online at http://www.megx.net/ [details] ...
more infohttp://www.marinespecies.org/aphia.php?p=taxdetails&id=743071

CAZy - BacteriaCAZy - Bacteria

Lineage: cellular organisms; Bacteria; Proteobacteria; Alphaproteobacteria; Rhizobiales; Bradyrhizobiaceae; Oligotropha; ...
more infohttp://www.cazy.org/b843.html

Bacterial diversity of the American sand fly Lutzomyia intermedia using high-throughput metagenomic sequencing | Parasites &...Bacterial diversity of the American sand fly Lutzomyia intermedia using high-throughput metagenomic sequencing | Parasites &...

Parasites of the genus Leishmania cause a broad spectrum of diseases, collectively known as leishmaniasis, in humans worldwide. American cutaneous leishmaniasis is a neglected disease transmitted by sand fly vectors including Lutzomyia intermedia, a proven vector. The female sand fly can acquire or deliver Leishmania spp. parasites while feeding on a blood meal, which is required for nutrition, egg development and survival. The microbiota composition and abundance varies by food source, life stages and physiological conditions. The sand fly microbiota can affect parasite life-cycle in the vector. We performed a metagenomic analysis for microbiota composition and abundance in Lu. intermedia, from an endemic area in Brazil. The adult insects were collected using CDC light traps, morphologically identified, carefully sterilized, dissected under a microscope and the females separated into groups according to their physiological condition: (i) absence of blood meal (unfed = UN); (ii) presence of blood meal
more infohttps://parasitesandvectors.biomedcentral.com/articles/10.1186/s13071-016-1767-z

Rhizobiales - WikipediaRhizobiales - Wikipedia

Genus Bradyrhizobium, family Bradyrhizobiaceae. In: Bergeys Manual of Systematic Bacteriology, 2nd Edition, 2nd Volume. George ... The four families Bradyrhizobiaceae, Hyphomicrobiaceae, Phyllobacteriaceae, and Rhizobiaceae contain at least six genera of ... Balneimonas is currently included in Bradyrhizobiaceae. Meganema is currently included in Methylobacteriaceae. Beck, D. A. C.; ...
more infohttps://en.wikipedia.org/wiki/Rhizobiales

Identification of natural antimicrobial peptides from bacteria through metagenomic and metatranscriptomic analysis of high...Identification of natural antimicrobial peptides from bacteria through metagenomic and metatranscriptomic analysis of high...

Anti-microbial peptides (AMPs), naturally encoded by genes and generally containing 12-100 amino acids, are crucial components of the innate immune system and can protect the host from various pathogenic bacteria and viruses. In recent years, the widespread use of antibiotics has resulted in the rapid growth of antibiotic-resistant microorganisms that often induce critical infection and pathogenesis. Recently, the advent of high-throughput technologies has led molecular biology into a data surge in both the amount and scope of data. For instance, next-generation sequencing technology has been applied to generate large-scale sequencing reads from foods, water, soil, air, and specimens to identify microbiota and their functions based on metagenomics and metatranscriptomics, respectively. In addition, oolong tea is partially fermented and is the most widely produced tea in Taiwan. Many studies have shown the benefits of oolong tea in inhibiting obesity, reducing dental plaque deposition, antagonizing
more infohttps://bmcsystbiol.biomedcentral.com/articles/10.1186/s12918-017-0503-4

Frontiers | Drying-Rewetting and Flooding Impact Denitrifier Activity Rather than Community Structure in a Moderately Acidic...Frontiers | Drying-Rewetting and Flooding Impact Denitrifier Activity Rather than Community Structure in a Moderately Acidic...

The TRFs were indicative of FEN CLUSTER 1 (TRFs 165, 298; affiliated with Bradyrhizobiaceae-related uncultured soil bacteria) ... The five most prominent TRFs were indicative of uncultured soil organisms related to Bradyrhizobiaceae of FEN CLUSTER 1 and ... Those TRFs were indicative of uncultured Bradyrhizobiaceae and Rhodospirillaceae (Figure S3). Thus, data suggests that ...
more infohttps://www.frontiersin.org/articles/10.3389/fmicb.2016.00727/full

Classification of bacteria - sponsored by Ribocon GmbHClassification of bacteria - sponsored by Ribocon GmbH

Family Bradyrhizobiaceae Afipia Agromonas Balneimonas Blastobacter Bosea Bradyrhizobium Nitrobacter Oligotropha Rhodoblastus ...
more infohttp://www.bacterio.net/-classifphyla.html

Examples of Biotechnology :: Bio Innovations - Stories about BiotechnologyExamples of Biotechnology :: Bio Innovations - Stories about Biotechnology

Plant Biotechnology Private Statement We have became fascinated with research during my very early childhood. It originated from the first look through microscope at Paramecium. Since that time I have...
more infohttp://silt3.com/BiotechnologyJournal/examples-of-biotechnology

Professor Clive Ronson, Our people, Genetics at Otago, University of Otago, New ZealandProfessor Clive Ronson, Our people, Genetics at Otago, University of Otago, New Zealand

nov., a new genus in the family Bradyrhizobiaceae isolated from soil in Thailand. Systematic & Applied Microbiology, 33(7), 374 ...
more infohttp://www.otago.ac.nz/genetics/staff/ronson.html

Safe-Site Effects on Rhizosphere Bacterial Communities in a High-Altitude Alpine EnvironmentSafe-Site Effects on Rhizosphere Bacterial Communities in a High-Altitude Alpine Environment

Finally, M site, the most differentiated safe-site, counted the presence of unknown Bradyrhizobiaceae, Bradyrhizobium sp., and ... although more frequent sequences belonging to Bradyrhizobiaceae, Chitinophagaceae, and other rarer taxa such as Flavisolibacter ...
more infohttps://www.hindawi.com/journals/bmri/2014/480170/

Comparing Metabolic Functionalities, Community Structures, and Dynamics of Herbicide-Degrading Communities Cultivated with...Comparing Metabolic Functionalities, Community Structures, and Dynamics of Herbicide-Degrading Communities Cultivated with...

Bradyrhizobiaceae (genera incertae sedis) are poorly described genera belonging to the family Bradyrhizobiaceae. Other genera ...
more infohttps://aem.asm.org/content/79/1/367