A species of motile, free-living, gram-negative bacteria that occur in the soil. They are aerobic or microaerophilic and are sometimes capable of nitrogen fixation.
A genus of gram-negative aerobic bacteria that occurs free-living in the soil or associated with the roots of cereal crops or grasses (POACEAE).
A large group of aerobic bacteria which show up as pink (negative) when treated by the gram-staining method. This is because the cell walls of gram-negative bacteria are low in peptidoglycan and thus have low affinity for violet stain and high affinity for the pink dye safranine.
An enzyme that catalyzes the formation of 2 molecules of glutamate from glutamine plus alpha-ketoglutarate in the presence of NADPH. EC 1.4.1.13.
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.
A family of signal transducing adaptor proteins that control the METABOLISM of NITROGEN. They are primarily found in prokaryotes.
The aggregation of suspended solids into larger clumps.
An enzyme system that catalyzes the fixing of nitrogen in soil bacteria and blue-green algae (CYANOBACTERIA). EC 1.18.6.1.
A non-heme iron-sulfur protein isolated from Clostridium pasteurianum and other bacteria. It is a component of NITROGENASE along with molybdoferredoxin and is active in nitrogen fixation.
A genus of gram-negative, curved and spiral-shaped bacteria found in stagnant, freshwater environments. These organisms are motile by bipolar tufts of flagella having a long wavelength and about one helical turn. Some species of Spirillum cause a form of RAT-BITE FEVER.
Salts and esters of hydroxybutyric acid.
Polymers of organic acids and alcohols, with ester linkages--usually polyethylene terephthalate; can be cured into hard plastic, films or tapes, or fibers which can be woven into fabrics, meshes or velours.
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)
Any of the processes by which cytoplasmic or intercellular factors influence the differential control of gene action in bacteria.
The functional hereditary units of BACTERIA.
A plant genus in the CHENOPODIACEAE family.
A plant genus of the family POACEAE that is the source of EDIBLE GRAIN. A hybrid with rye (SECALE CEREALE) is called TRITICALE. The seed is ground into FLOUR and used to make BREAD, and is the source of WHEAT GERM AGGLUTININS.
Derivatives of ammonium compounds, NH4+ Y-, in which all four of the hydrogens bonded to nitrogen have been replaced with hydrocarbyl groups. These are distinguished from IMINES which are RN=CR2.
A colorless alkaline gas. It is formed in the body during decomposition of organic materials during a large number of metabolically important reactions. Note that the aqueous form of ammonia is referred to as AMMONIUM HYDROXIDE.
The movement of cells or organisms toward or away from a substance in response to its concentration gradient.
Proteins found in any species of bacterium.
An enzyme that catalyzes the conversion of ATP, L-glutamate, and NH3 to ADP, orthophosphate, and L-glutamine. It also acts more slowly on 4-methylene-L-glutamate. (From Enzyme Nomenclature, 1992) EC 6.3.1.2.
A plant genus of the family POACEAE. The seed is one of the millets used in EDIBLE GRAIN. It contains vitexin. The common name of buffelgrass is also used for CENCHRUS.
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 to gram-variable, nitrogen-fixing bacteria. They are free-living in SOIL or found in association with PLANT ROOTS. It is the type species of the genus AZOSPIRILLUM.
Compounds consisting of glucosamine and lactate joined by an ether linkage. They occur naturally as N-acetyl derivatives in peptidoglycan, the characteristic polysaccharide composing bacterial cell walls. (From Dorland, 28th ed)
The outermost layer of a cell in most PLANTS; BACTERIA; FUNGI; and ALGAE. The cell wall is usually a rigid structure that lies external to the CELL MEMBRANE, and provides a protective barrier against physical or chemical agents.
A nucleoside diphosphate sugar which is formed from UDP-N-acetylglucosamine and phosphoenolpyruvate. It serves as the building block upon which peptidoglycan is formed.
Enzymes that catalyze the transfer of an aminoacyl group from donor to acceptor resulting in the formation of an ester or amide linkage. EC 2.3.2.
Any behavior caused by or affecting another individual, usually of the same species.
A trinitrobenzene derivative with antispasmodic properties that is used primarily as a laboratory reagent.
A free radical gas produced endogenously by a variety of mammalian cells, synthesized from ARGININE by NITRIC OXIDE SYNTHASE. Nitric oxide is one of the ENDOTHELIUM-DEPENDENT RELAXING FACTORS released by the vascular endothelium and mediates VASODILATION. It also inhibits platelet aggregation, induces disaggregation of aggregated platelets, and inhibits platelet adhesion to the vascular endothelium. Nitric oxide activates cytosolic GUANYLATE CYCLASE and thus elevates intracellular levels of CYCLIC GMP.
The study of the origin, structure, development, growth, function, genetics, and reproduction of plants.
A contagious disease caused by canine adenovirus (ADENOVIRUSES, CANINE) infecting the LIVER, the EYE, the KIDNEY, and other organs in dogs, other canids, and bears. Symptoms include FEVER; EDEMA; VOMITING; and DIARRHEA.
Diseases of the domestic dog (Canis familiaris). This term does not include diseases of wild dogs, WOLVES; FOXES; and other Canidae for which the heading CARNIVORA is used.
Electron microscopy involving rapid freezing of the samples. The imaging of frozen-hydrated molecules and organelles permits the best possible resolution closest to the living state, free of chemical fixatives or stains.
Models used experimentally or theoretically to study molecular shape, electronic properties, or interactions; includes analogous molecules, computer-generated graphics, and mechanical structures.
Amino acid transporter systems capable of transporting acidic amino acids (AMINO ACIDS, ACIDIC).

Biosynthesis of indole-3-acetic acid in Azospirillum brasilense. Insights from quantum chemistry. (1/107)

Quantum chemical methods AM1 and PM3 and chromatographic methods were used to qualitatively characterize pathways of bacterial production of indole-3-acetic acid (IAA). The standard free energy changes (delta G(o)'sum) for the synthesis of tryptophan (Trp) from chorismic acid via anthranilic acid and indole were calculated, as were those for several possible pathways for the synthesis of IAA from Trp, namely via indole-3-acetamide (IAM), indole-3-pyruvic acid (IPyA), and indole-3-acetonitrile (IAN). The delta G(o)'sum for Trp synthesis from chorismic acid was -402 (-434) kJ.mol-1 (values in parentheses were calculated by PM3). The delta G(o)'sum for IAA synthesis from Trp were -565 (-548) kJ.mol-1 for the IAN pathway, -481 (-506) kJ.mol-1 for the IAM pathway, and -289 (-306) kJ.mol-1 for the IPyA pathway. By HPLC analysis, the possibility was assessed that indole, anthranilic acid, and Trp might be utilized as precursors for IAA synthesis by Azospirillum brasilense strain Sp 245. The results indicate that there is a high motive force for Trp synthesis from chorismic acid and for IAA synthesis from Trp, and make it unlikely that anthranilic acid and indole act as the precursors to IAA in a Trp-independent pathway.  (+info)

Azospirillum irakense produces a novel type of pectate lyase. (2/107)

The pelA gene from the N2-fixing plant-associated bacterium Azospirillum irakense, encoding a pectate lyase, was isolated by heterologous expression in Escherichia coli. Nucleotide sequence analysis of the region containing pelA indicated an open reading frame of 1,296 bp, coding for a preprotein of 432 amino acids with a typical amino-terminal signal peptide of 24 amino acids. N-terminal amino acid sequencing confirmed the processing of the protein in E. coli at the signal peptidase cleavage site predicted by nucleotide sequence analysis. Analysis of the amino acid sequence of PelA revealed no homology to other known pectinases, indicating that PelA belongs to a new pectate lyase family. PelA macerates potato tuber tissue, has an alkaline pH optimum, and requires Ca2+ for its activity. Of several divalent cations tested, none could substitute for Ca2+. Methyl-esterified pectin (with a degree of esterification up to 93%) and polygalacturonate can be used as substrates. Characterization of the degradation products formed upon incubation with polygalacturonate indicated that PelA is an endo-pectate lyase generating unsaturated digalacturonide as the major end product. Regulation of pelA expression was studied by means of a translational pelA-gusA fusion. Transcription of this fusion is low under all growth conditions tested and is dependent on the growth phase. In addition, pelA expression was found to be induced by pectin. An A. irakense pelA::Tn5 mutant still displayed pectate lyase activity, suggesting the presence of multiple pectate lyase genes in A. irakense.  (+info)

Involvement of outer-membrane proteins in the aggregation of Azospirillum brasilense. (3/107)

A bioassay was developed to investigate biological factors involved in the aggregation of Azospirillum brasilense strain Cd. Cells were grown for 24 h under aggregation-inducing and non-aggregation-inducing conditions (high and low C:N, respectively) and sonicated for 20 s. The cells were washed by centrifugation and resuspended in potassium phosphate buffer containing the two types of sonication extract. A greater extent of aggregation and higher flocculation were observed after 2-3 h incubation in the presence of sonicates from cells grown at high C:N (H-cells) compared to cells grown at low C:N. Flocculation did not occur after incubation of these cells in phosphate buffer. Boiled or proteinase K-treated sonicates originating from H-cells had lower aggregation-inducing capacity. After fractionation of the crude sonicate, both the outer-membrane protein (OMP) and the total membrane (mostly OMP) fractions possessed relatively high aggregation specific activities. The aggregation-inducing capacity of the OMP fraction strongly correlated with its protein concentration in the bioassay. Treatment of this fraction with proteinase K also decreased its aggregation-inducing activity. These findings suggest that OMPs are involved in the aggregation process of cells of A. brasilense.  (+info)

The ntrB and ntrC genes are involved in the regulation of poly-3-hydroxybutyrate biosynthesis by ammonia in Azospirillum brasilense Sp7. (4/107)

Azospirillum brasilense Sp7 and its ntrA (rpoN), ntrBC, and ntrC mutants have been evaluated for their capabilities of poly-3-hydroxybutyrate (PHB) accumulation in media with high and low ammonia concentrations. It was observed that the ntrBC and ntrC mutants can produce PHB in both low- and high-C/N-ratio media, while no significant PHB production was observed for the wild type or the ntrA mutant in low-C/N-ratio media. Further investigation by fermentation analysis indicated that the ntrBC and ntrC mutants were able to grow and accumulate PHB simultaneously in the presence of a high concentration of ammonia in the medium, while little PHB was produced in the wild type and ntrA (rpoN) mutant during active growth phase. These results provide the first genetic evidence that the ntrB and ntrC genes are involved in the regulation of PHB synthesis by ammonia in A. brasilense Sp7.  (+info)

Increased growth of the microalga Chlorella vulgaris when coimmobilized and cocultured in alginate beads with the plant-growth-promoting bacterium Azospirillum brasilense. (5/107)

Coimmobilization of the freshwater microalga Chlorella vulgaris and the plant-growth-promoting bacterium Azospirillum brasilense in small alginate beads resulted in a significantly increased growth of the microalga. Dry and fresh weight, total number of cells, size of the microalgal clusters (colonies) within the bead, number of microalgal cells per cluster, and the levels of microalgal pigments significantly increased. Light microscopy revealed that both microorganisms colonized the same cavities inside the beads, though the microalgae tended to concentrate in the more aerated periphery while the bacteria colonized the entire bead. The effect of indole-3-acetic acid addition to microalgal culture prior to immobilization of microorganisms in alginate beads partially imitated the effect of A. brasilense. We propose that coimmobilization of microalgae and plant-growth-promoting bacteria is an effective means of increasing microalgal populations within confined environments.  (+info)

Functional properties of recombinant Azospirillum brasilense glutamate synthase, a complex iron-sulfur flavoprotein. (6/107)

Azospirillum brasilense glutamate synthase is a complex iron-sulfur flavoprotein that catalyses the NADPH-dependent reductive transfer of glutamine amide group to the C(2) carbon of 2-oxoglutarate to yield L-glutamate. Its catalytically active alphabeta protomer is composed of two dissimilar subunits (alpha subunit, 164.2 kDa; beta subunit, 52.3 kDa) and contains one FAD (at Site 1, the pyridine nucleotide site within the beta subunit), one FMN (at Site 2, the 2-oxoglutarate/L-glutamate site in the alpha subunit) and three different iron-sulfur clusters (one 3Fe-4S center on the alpha subunit and two 4Fe-4S clusters of unknown location). A plasmid harboring the gltD and gltB genes, the genes encoding the glutamate synthase beta and alpha subunits, respectively, each one under the control of the T7/lac promoter of pET11a was found to be suitable for the overproduction of glutamate synthase holoenzyme in Escherichia coli BL21(DE3) cells. Recombinant A. brasilense glutamate synthase could be purified to homogeneity from overproducing E. coli cells by ion exchange chromatography, gel filtration and affinity chromatography on a 2',5' ADP-Sepharose 4B column. The purified enzyme was indistinguishable from that prepared from Azospirillum cells with respect to cofactor content, N-terminal sequence of the subunits, aggregation state, kinetic and spectroscopic properties. The study of the recombinant holoenzyme allowed us to establish that the tendency of glutamate synthase to form a stable (alphabeta)4 tetramer at high protein concentrations is a property unique to the holoenzyme, as the isolated beta subunit does not oligomerize, while the isolated glutamate synthase alpha subunit only forms dimers at high protein concentrations. Furthermore, the steady-state kinetic analysis of the glutamate synthase reaction was extended to the study of the effect of adenosine-containing nucleotides. Compounds such as cAMP, AMP, ADP and ATP have no effect on the enzyme activity, while the 2'-phosphorylated analogs of AMP and NADP(H) analogs act as inhibitors of the reaction, competitive with NADPH. Thus, it can be ruled out that glutamate synthase reaction is subjected to allosteric modulation by adenosine containing (di)nucleotides, which may bind to the putative ADP-binding site at the C-terminus of the alpha subunit. At the same time, the strict requirement of a 2'-phosphate group in the pyridine nucleotide for binding to glutamate synthase (GltS) was established. Finally, by comparing the inhibition constants exhibited by a series of NADP+ analogs, the contribution to the binding energy of the various parts of the pyridine nucleotide has been determined along with the effect of substituents on the 3 position of the pyridine ring. With the exception of thio-NADP+, which binds the tightest to GltS, it appears that the size of the substituent is the factor that affects the most the interaction between the NADP(H) analog and the enzyme.  (+info)

Mutants with enhanced nitrogenase activity in hydroponic Azospirillum brasilense-wheat associations. (7/107)

The effect of a mutation affecting flocculation, differentiation into cyst-like forms, and root colonization on nitrogenase expression by Azospirillum brasilense is described. The gene flcA of strain Sp7 restored these phenotypes in spontaneous mutants of both strains Sp7 and Sp245. Employing both constitutive pLA-lacZ and nifH-lacZ reporter fusions expressed in situ, the colony morphology, colonization pattern, and potential for nitrogenase activity of spontaneous mutants and flcA Tn5-induced mutants were established. The results of this study show that the ability of Sp7 and Sp245 mutant strains to remain in a vegetative form improved their ability to express nitrogenase activity in association with wheat in a hydroponic system. Restoring the cyst formation and colonization pattern to the spontaneous mutant Sp7-S reduced nitrogenase activity rates in association with plants to that of the wild-type Sp7. Although Tn5-induced flcA mutants showed higher potentials for nitrogenase expression than Sp7, their potentials were lower than that of Sp7-S, indicating that other factors in this strain contribute to its exceptional nitrogenase activity rates on plants. The lack of lateral flagella is not one of these factors, as Sp7-PM23, a spontaneous mutant impaired in swarming and lateral-flagellum production but not in flocculation, showed wild-type nitrogenase activity and expression. The results also suggest factors of importance in evolving an effective symbiosis between Azospirillum and wheat, such as increasing the availability of microaerobic niches along the root, increased supply of carbon sources by the plant, and the retention of the bacterial cells in vegetative form for faster metabolism.  (+info)

Energy taxis is the dominant behavior in Azospirillum brasilense. (8/107)

Energy taxis encompasses aerotaxis, phototaxis, redox taxis, taxis to alternative electron acceptors, and chemotaxis to oxidizable substrates. The signal for this type of behavior is originated within the electron transport system. Energy taxis was demonstrated, as a part of an overall behavior, in several microbial species, but it did not appear as the dominant determinant in any of them. In this study, we show that most behavioral responses proceed through this mechanism in the alpha-proteobacterium Azospirillum brasilense. First, chemotaxis to most chemoeffectors typical of the azospirilla habitat was found to be metabolism dependent and required a functional electron transport system. Second, other energy-related responses, such as aerotaxis, redox taxis, and taxis to alternative electron acceptors, were found in A. brasilense. Finally, a mutant lacking a cytochrome c oxidase of the cbb(3) type was affected in chemotaxis, redox taxis, and aerotaxis. Altogether, the results indicate that behavioral responses to most stimuli in A. brasilense are triggered by changes in the electron transport system.  (+info)

Bacterial NADPH-dependent glutamate synthase (GltS) is a complex iron-sulfur flavoprotein that catalyzes the reductive synthesis of two L-Glu molecules from L-Gln and 2-oxo-glutarate. GltS functional unit hosts an α-subunit (αGltS) and a β-subunit (βGltS) that assemble in different αβ oligomers in solution. Here, we present the cryo-electron microscopy structures of Azospirillum brasilense GltS in four different oligomeric states (αβ, αβ, αβ and αβ, in the 3.5- to 4.1-Å resolution range). Our study provides a comprehensive GltS model that details the inter-protomeric assemblies and allows unequivocal location of the FAD cofactor and of two electron transfer [4Fe-4S] clusters within βGltS ...
Azospirillum brasilense is a bacterium. Its type strain is Sp 7 (ATCC 29145). It is nitrogen-fixing and is found in rhizospheres of several grasses. A strain originally classified as Roseomonas fauriae was reclassified as A. brasilense. It first isolated from a hand wound of a woman in Hawaii in 1971, and was named for Yvonne Faur for her contributions to public health bacteriology and, specifically, for her contribution to the recognition of pink-pigmented bacteria.. Tarrand, Jeffrey J.; Krieg, Noel R.; Döbereiner, Johanna (1978). A taxonomic study of theSpirillum lipoferumgroup, with descriptions of a new genus,Azospirillumgen. nov. and two species,Azospirillum lipoferum(Beijerinck) comb. nov. andAzospirillum brasilensesp. nov. Canadian Journal of Microbiology. 24 (8): 967-980. doi:10.1139/m78-160. ISSN 0008-4166. Tien TM, Gaskins MH, Hubbell DH (May 1979). Plant Growth Substances Produced by Azospirillum brasilense and Their Effect on the Growth of Pearl Millet (Pennisetum americanum ...
Resumo: O gene LONELY GUY (LOG) de Arabidopsis thaliana codifica uma das enzimas associadas à biossíntese de citocininas. As citocininas são fito-hormônios reguladores do crescimento e desenvolvimentos de plantas. Por meio de ferramentas de bioinformática foram encontrados dois genes homólogos a LOG de Arabidopsis thaliana no genoma de Azospirillum brasilense FP2. A. brasilense é uma bactéria associativa de plantas, fixadora de nitrogênio e promotora de crescimento vegetal. A produção de fito-hormônios, entre eles as citocininas, está ligada a capacidade de promover o crescimento vegetal através da inoculação com bactérias. Sendo assim, o objetivo desse trabalho foi caracterizar as proteínas Log1 e Log2 de A. brasilense. Os genes log1 e log2 foram amplificados através de reação em cadeia da polimerase (PCR). Os produtos de PCR foram clonados no plasmídeo pBlueScript II KS, sequenciados para confirmar a integridade da sequência de bases e subclonados nos plasmídeos ...
Bacteria of the genus Azospirillum, including the most comprehensively studied Azospirillum brasilense, are non‐pathogenic soil bacteria that promote the growth of diverse plants, making them an attractive model to understand non‐symbiotic, beneficial plant‐bacteria associations
Blaha C.A.G., Revers L.F., Passaglia L.M.P., Frazzon J., Schrank I.S. (2000) Characterization of an Azospirillum brasilense Tn5 Mutant with Enhanced Nitrogen Fixtation. In: Pedrosa F.O., Hungria M., Yates G., Newton W.E. (eds) Nitrogen Fixation: From Molecules to Crop Productivity. Current Plant Science and Biotechnology in Agriculture, vol 38. Springer, Dordrecht. https://doi.org/10.1007/0-306-47615-0_ ...
Peptidoglycan is a macromolecule made of long aminosugar strands cross-linked by short peptides. It forms the cell wall in bacteria surrounding the cytoplasmic membrane. The glycan strands are typically comprised of repeating N-acetylglucosamine (GlcNAc) and N-acetylmuramic acid (MurNAc) disaccharides. Each MurNAc is linked to a peptide of three to five amino acid residues. Disaccharide subunits are first assembled on the cytoplasmic side of the bacterial membrane on a polyisoprenoid anchor (lipid I and II). Polymerization of disaccharide subunits by transglycosylases and cross-linking of glycan strands by transpeptidases occur on the other side of the membrane. Bacterial cell wall biosynthesis inhibitors form a major class of antibiotics ...
Molecular Plant-Microbe Interactions 21:1001-1009...Celeste Molina-Favero,1 Cecilia Mónica Creus,1 Marcela Simontacchi,2 Susana Puntarulo,2 and Lorenzo Lamattina3...© 2008 The American Phytopathological Society...
Azospirilla are well-known plant-beneficial α-proteobacteria. However, they have been isolated not only from a wide range of plant, soil, and water locations, but also from human tissues. Thus, it is...
Colonization and nitrogenase activity of Triticum aestivum (cv. Baccross and Mahdavi) to the dual inoculation with Azospirillum brasilense and Rhizobium melilot
Azospirillum brasilense, is a nitrogen fixing bacteria, OMRI certified. Plants grow organic faster with bigger root systems. Organic certified for cannabis.
MATERIALS AND METHODS Bacterial strains - Bacillus cereus, Pseudomonas fluorescens, B. megaterium, Azospirillum brasilense, B. thuringiensis var. israelensis (wild type), B. t. var. israelensis (mutant) and B. sphaericus, obtained from the culture collection of Vector Control Research Centre (VCRC), Pondicherry, were used for the study. Cultivation of bacteria - Nutrient broth (NB) containing (wt/v %) glucose (0.5), beef extract (0.5), sodium chloride (0.5), and peptone (0.5) in distilled water at a pH 7.5 was used to grow P. fluorescens, B. cereus and B. megaterium. Nutrient yeast extract mineral salt medium (NYSM) [composition (wt/v %): glucose, 0.5; peptone, 0.5; sodium chloride, 0.5; beef extract. 0.3; yeast extract, 0.5; magnesium chloride, 0.020; manganous chloride, 0.001; and calcium chloride, 0.010 in distilled water, pH 7.2] was used to grow wild type as well as mutant strains of B. t. var. israelensis (Yousten et al. 1980). And to grow B. sphaericus the medium NYSM without glucose was ...
An understanding of the adaptive strategies of gramnegative and grampositive bacteria (Erwinia carotovora, Escherichia coli, Xanthomonas campestris, Azospirillum brasilense, Salmonella enterica, Bacillus subtilis) to substrate starvation has been developed. It has been established that under starvation conditions the magnitude of population increase or decrease (depending on initial population density), stabilizing at 106CFUs/ml. Quorum sensing is shown to take part in this process. It has been demonstrated that bacteria is able to increase their numbers in absence of carbon and phosphor sources no less than three order of magnitude at the expense of formation of cells with reduced size and atypical morphology (ultramicroforms). ...
Wir freuen uns euch zu einem Special Screening in Kooperation mit Südwind einzuladen. *End climate change, start #climateofchange!* ...
Telehealth, offered in the three countries, means less hospital care and more patient empowerment. Through telehealth patients gain a better understanding of their illness while they have the chance to be treated in their own homes. Fabienne Abadie, a scientific officer at IPTS, one of the seven scientific institutes of the European Commissions Joint Research Centre, stresses: The Danes have succeeded in deploying telehealth, because all relevant stakeholders have been encouraged to join in. One cannot hope that the market alone can push the use of telehealth into care practice. A good model of governance, at regional or national level, is crucial to support telehealth in order to reap the benefits it offers. In this process, stakeholders such as the health care professionals play a vital role. This is only a snapshot of what the SIMPHS[1] research reveals on best practice with the deployment of telehealth in Europe, and its role in promoting integrated, patient-centred care. Fabienne Abadie ...
Cellular fatty acid composition of 14 strains from the four species of Azospirillum was determined by gas chromatographic analysis. All strains of Azospirillum lipoferum and Azospirillum brasilense...
Water stress is one of the most important environmental constraints that limit survival and productivity of staple crops like wheat and maize particularly in arid and semi-arid regions. Plant growth promoting Rhizobacteria (Rhizobium and Azospirillum) are beneficial bacteria present in soil and forming associations with roots of plants.,br, Present study was aimed at isolation and biochemical characterization of Rhizobium and Azospirillum strains from roots and rhizospheric soil of wheat and maize (at tillering and anthesis stage) growing under different moisture regimes in the field and under induced water stress in pots. The survival efficiency as measured by log cfu/g, carbon/nitrogen utilization pattern determined by QTS (Quick Test System), random amplification of polymorphic DNA analyses, phytohormone production and 16sRNA sequence analysis were done for isolated strains. The efficiency of isolated strains to promote plant growth and development was tested under induced water stress ...
Spaepen, S., W. Versées, D. Gocke, M. Pohl, J. Steyaert, and J. Vanderleyden, Characterization of phenylpyruvate decarboxylase, involved in auxin production of Azospirillum brasilense., J Bacteriol, vol. 189, issue 21, pp. 7626-33, 2007 Nov. ...
Click here for azospirillum bacteria pictures! You can also find pictures of anna bacteria, austin bacteria, axonopodis bacteria.
ID B9WLQ0_CANDC Unreviewed; 484 AA. AC B9WLQ0; DT 24-MAR-2009, integrated into UniProtKB/TrEMBL. DT 24-MAR-2009, sequence version 1. DT 07-JUN-2017, entry version 53. DE RecName: Full=Phosphotransferase {ECO:0000256,RuleBase:RU362007}; DE EC=2.7.1.- {ECO:0000256,RuleBase:RU362007}; GN OrderedLocusNames=Cd36_29870 {ECO:0000313,CGD:CAL0000166854}; GN ORFNames=CD36_29870 {ECO:0000313,EMBL:CAX40012.1}; OS Candida dubliniensis (strain CD36 / ATCC MYA-646 / CBS 7987 / NCPF OS 3949 / NRRL Y-17841) (Yeast). OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; OC Saccharomycetes; Saccharomycetales; Debaryomycetaceae; OC Candida/Lodderomyces clade; Candida. OX NCBI_TaxID=573826 {ECO:0000313,EMBL:CAX40012.1, ECO:0000313,Proteomes:UP000002605}; RN [1] {ECO:0000313,EMBL:CAX40012.1, ECO:0000313,Proteomes:UP000002605} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=CD36 / ATCC MYA-646 / CBS 7987 / NCPF 3949 / NRRL Y-17841 RC {ECO:0000313,Proteomes:UP000002605}; RX PubMed=19745113; ...
I believe that birth is one of the most powerful, memorable events that someone can experience in their lifetime.. I became a doula in 2010 after my experience with a cesarean and subsequent VBACs sparked a passion for informed choices and helping birthing families explore their options.. I have supported over 100 birthing families. I specialize in VBAC (vaginal birth after cesarean) but have experience with all kinds of births, including multiples, waterbirths, homebirths, and surgical births.. I have four kids, and in my copious free time I enjoy hiking, cooking, singing, and knitting.. ...
Conte MS, Bradbury AW, Kolh P, White JV, Dick F, Fitridge R, Mills JL, Ricco JB, Suresh KR, Murad MH, Aboyans V, Aksoy M, Alexandrescu VA, Armstrong D, Azuma N, Belch J, Bergoeing M, Bjorck M, Chakfé N, Cheng S, Dawson J, Debus ES, Dueck A, Duval S, Eckstein HH, Ferraresi R, Gambhir R, Gargiulo M, Geraghty P, Goode S, Gray B, Guo W, Gupta PC, Hinchliffe R, Jetty P, Komori K, Lavery L, Liang W, Lookstein R, Menard M, Misra S, Miyata T, Moneta G, Prado JAM, Munoz A, Paolini JE, Patel M, Pomposelli F, Powell R, Robless P, Rogers L, Schanzer A, Schneider P, Taylor S, Vega De Ceniga M, Veller M, Vermassen F, Wang J, Wang S. Global vascular guidelines on the management of chronic limb-threatening ischemia. J Vasc Surg. 2019 Jun; 69(6S):3S-125S.e40 ...
With back to school season upon us, please be sure to provide us with any school forms as soon as possible. As you can imagine, we receive many forms to complete, so we ask you to patient. Also, now is an important time to get in touch with your childs teacher(s) to let them know about any ...
HydroFarm BioRighteous, 12 oz Hydro Organics BioRighteous, 12 oz (HOR00771) BioRighteous inch Microbes For Plants inch - Blend No. 2 A powder blend of beneficial soil and plant microbes. Easy and versatile to use. Can be mixed into fertilizers and soils, applied as a foliage spray, added to hydroponic reservoirs and is ideal for brewing plant teas. Can be used together with BioZeus inch Microbes for Plants inch - Blend No. 1. BioRighteous contains the following active ingredients: Beneficial microbes, Azotobacter chroococcum, Azospirillum lipoferum, Azospirillum brasilense, Azotobacter vinelandii, Bacillus laterosprorus, Bacillus licheniforms, Bacillus coagulans, Bacillus megaterium, Bacillus pumilis, Bacillus subtilis, Lactobacillus acidophilus, Pseudomonas fluorescens, Rhizobium japonicum Manufacturers Product Information MSRP each $ 21.48 UPC 727644007720 Dimensions 15.25 x 3.5 x 11 Case Weight 11 Case Quantity 12 HydroFarm: BioRighteous, 12 oz [hf-HOR00771] - Nutrients & Supplements - Gardening
Las dos primeras en ser descritas fueron A. Posteriormente fueron descritas las especies A. No obstante, en este medio de cultivo son aisladas predominantemente cepas de las especies A. El cultivo puro se logra en diferentes medios de laboratorio , siendo muy comunmente usado un medio adicionado del colorante rojo Congo , en el cual A.. Debido a que el p90 no ha podido ser curado en A. Las especies de A. No obstante, la sobrevivencia de A. Para el uso de diferentes fuentes de carbono, tanto A. Tanto A. Tanto en A. Por ejemplo, la capacidad para producir bacteriocinas por algunas cepas de A. Esta actividad antagonista correlaciona con la alta sensibilidad de A. Estos resultados sugieren que el antagonismo causado por hongos contra Azospirillum es limitado. Por ejemplo, el filtrado de un cultivo de Phialophora radicicola, hongo usado como agente de biocontrol, promueve el crecimiento de A.. Diferentes estudios han mostrado que A. Sin embargo, fue observada la presencia de Azospirillum dentro del ...
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p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.,/p> ,p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.,/p> ,p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).,/p> ,p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x,sup>64,/sup> + x,sup>4,/sup> + x,sup>3,/sup> + x + 1. The algorithm is described in the ISO 3309 standard. ,/p> ,p class=publication>Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.,br /> ,strong>Cyclic redundancy and other checksums,/strong>,br /> ,a href=http://www.nrbook.com/b/bookcpdf.php>Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993),/a>),/p> Checksum:i ...
1. General Information. The organizer of 2018 IPDC is the Korean Econometric Society located at Bldg # 16-613, Seoul National University Kwanak-ro 1, Kwanak-gu, Seoul, Korea. The organization committee of 2018 IPDC consists of In Choi (Sogang University), Almas Heshmati (Sogang University) and Young Hoon Lee (Sogang University). The Your use of the website http://idpc.sogang.ac.kr will always be subject to the terms and conditions set out in this document. These are referred to as the Master Terms. In addition, your use of the website may also be subject to the terms of any legal notice applicable to the website, in addition to the Master Terms. All such terms supplementing the Master Terms are referred to below as the Additional Terms. The Master Terms, together with any Additional Terms, form a binding legal agreement between you and the 2018 IPDC organizer in relation to your use of the website. Collectively, this legal agreement is referred to below as the Terms. If there is any ...
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TY - JOUR. T1 - Effect of Klebsiella pneumoniae and Azospirillum halopraeferens on the growth and development of two Salicornia bigelovii genotypes. AU - Rueda-Puente, E. O.. AU - Castellanos, T.. AU - Troyo-Diéguez, E.. AU - Díaz De León-Alvarez, J. L.. PY - 2004/4/13. Y1 - 2004/4/13. U2 - 10.1071/EA03012. DO - 10.1071/EA03012. M3 - Article. SP - 65. EP - 74. JO - Australian Journal of Experimental Agriculture. JF - Australian Journal of Experimental Agriculture. SN - 0816-1089. ER - ...
Genome sequence of Shigella flexneri strain SP1, a diarrheal isolate that encodes an extended-spectrum β-lactamase ESBL. . Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.
p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.,/p> ,p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.,/p> ,p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).,/p> ,p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x,sup>64,/sup> + x,sup>4,/sup> + x,sup>3,/sup> + x + 1. The algorithm is described in the ISO 3309 standard. ,/p> ,p class=publication>Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.,br /> ,strong>Cyclic redundancy and other checksums,/strong>,br /> ,a href=http://www.nrbook.com/b/bookcpdf.php>Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993),/a>),/p> Checksum:i ...
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Lignocellulosic biomass yields after hydrolysis, besides the hexose D-glucose, D-xylose, and L-arabinose as main pentose sugars. In second generation bioethanol production utilizing the yeast Saccharomyces cerevisiae, it is critical that all three sugars are co-consumed to obtain an economically feasible and robust process. Since S. cerevisiae is unable to metabolize pentose sugars, metabolic pathway engineering has been employed to introduce the respective pathways for D-xylose and L-arabinose metabolism. However, S. cerevisiae lacks specific pentose transporters, and these sugars enter the cell with low affinity via glucose transporters of the Hxt family. Therefore, in the presence of D-glucose, utilization of D-xylose and L-arabinose is poor as the Hxt transporters prefer D-glucose. To solve this problem, heterologous expression of pentose transporters has been attempted but often with limited success due to poor expression and stability, and/or low turnover. A more successful approach is the ...
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The term plant growth promoting rhizobacteria (PGPR) has been introduced (Kloepper et al., 1980) for the bacteria that colonize the plant roots and stimulate plant growth and crop yield.
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induced by Azospirillum brasilense: II. Heterotrophic conditions". Enzyme and Microbial Technology. 51 (5): 300-309. doi: ... when co-immobilized in alginate beads with the microalgae-growth-promoting bacterium Azospirillum brasilense". Canadian Journal ... vulgaris when coimmobilized and cocultured in alginate beads with the plant-growth-promoting bacterium Azospirillum brasilense ...
Her favorite bacterium is Azospirillum brasilense. Discovery and engineering of plant chemistry, 2017 "Elizabeth Sattely, PhD ...
... with azospirillum brasilense under temperate climate, Symbiosis, 13, 243-253. Gutierrez Manero, F. J. (2008) Systemic disease ... "Response to oxygen of diazotrophic Azospirillum brasilense ? Arthrobacter giacomelloi mixed batch culture". Archives of ... For non-leguminous crops, Azospirillum has been demonstrated to be beneficial in some cases for nitrogen fixation and plant ... Khammas, K. M. & Kaiser, P. (1992) Pectin decomposition and associated nitrogen fixation by mixed cultures of Azospirillum and ...
"Bacterial chemotactic motility is important for the initiation of wheat root colonization by Azospirillum brasilense". ...
El-Shanshoury, A. R. (September 1995). "Interactions of Azotobacter chroococcum, Azospirillum brasilense and Streptomyces ...
Azospirillum MeSH B03.440.400.425.708.100.020 - Azospirillum brasilense MeSH B03.440.400.425.708.100.510 - Azospirillum ... Azospirillum MeSH B03.660.050.663.750.100.020 - Azospirillum brasilense MeSH B03.660.050.663.750.100.510 - Azospirillum ...
... gen. nov. and two species, Azospirillum lipoferum (Beijerinck) comb. nov. and Azospirillum brasilense sp. nov". ... who also added Azospirillum brasilense to the genus. By 2020, twenty-one species of Azospirillum had been described, most of ... "Root-surface colonization of black mangrove seedlings by Azospirillum halopraeferens and Azospirillum brasilense in seawater". ... Azospirillum are gram-negative, do not form spores, and have a slightly-twisted oblong-rod shape. Azospirillum have at least ...
"Azospirillum brasilense" at the Encyclopedia of Life Type strain of Azospirillum brasilense at BacDive - the Bacterial ... Azospirillum gen. nov. and two species, Azospirillum lipoferum(Beijerinck) comb. nov. and Azospirillum brasilense sp. nov". ... Azospirillum brasilense is a well studied, nitrogen-fixing (diazotroph), genetically tractable, Gram-negative, alpha- ... Tien TM, Gaskins MH, Hubbell DH (May 1979). "Plant Growth Substances Produced by Azospirillum brasilense and Their Effect on ...
... which exposed the roots of different species of tree to rhizobacteria and the nitrogen fixing bacterium Azospirillum brasilense ...
"Azospirillum brasilense" at the Encyclopedia of Life Type strain of Azospirillum brasilense at BacDive - the Bacterial ... Azospirillum gen. nov. and two species, Azospirillum lipoferum(Beijerinck) comb. nov. and Azospirillum brasilense sp. nov". ... Azospirillum brasilense is a well studied, nitrogen-fixing (diazotroph), genetically tractable, Gram-negative, alpha- ... Tien TM, Gaskins MH, Hubbell DH (May 1979). "Plant Growth Substances Produced by Azospirillum brasilense and Their Effect on ...
Peptidoglycan biosynthesis - Azospirillum brasilense Sp245 [ Pathway menu , Organism menu , Pathway entry , Download KGML , ...
Azospirillum brasilense=== ==Description and Significance== Azospirillum brasilense is one of the most well-studied ... View source for Azospirillum brasilense. From MicrobeWiki, the student-edited microbiology resource ... References , [2]]] A.brasilense is capable of promoting growth of plants through the secretion of phytohormones, the most ... A.brasilense colonizes the surface of plant roots through a two step process: attachment and anchoring. [[#References , [1 ...
Azospirillum gen. nov. and two species, Azospirillum lipoferum (Beijerinck) comb. nov. and Azospirillum brasilense sp. nov. Can ... Bastarrachea F, Zamudio M, Rivas R (1988) Non-encapsulated mutants of Azospirillum brasilense and Azospirillum lipoferum. Can J ... Azospirillum brasilense SR75 O-specific polysaccharide and homology of the lps loci in the plasmids of Azospirillum brasilense ... Genome sequence of Azospirillum brasilense CBG497 and comparative analyses of Azospirillum core and accessory genomes provide ...
... brasilense) and Pseudomonas fluorescens ( P. fluorescens) have long been known to benefit inoculated rice plants, but their ... Azospirillum brasilense (A. brasilense) and Pseudomonas fluorescens (P. fluorescens) have long been known to benefit inoculated ... Effects of Azospirillum brasilense and Pseudomonas fluorescens on nitrogen transformation and enzyme activity in the rice ... brasilense (Mb), rice seedling roots inoculated with P. fluorescens (Mp), and rice seedling roots inoculated with a mixture of ...
A 40-kb DNA region containing the major cluster of nif genes has been isolated from the Azospirillum brasilense Sp7 genome. In ... Sequencing and promoter analysis of the nifENXorf3orf5fdxAnifQ operon from Azospirillum brasilense Sp7.. Potrich DP1, Bressel ... This result suggests the differential expression of the nif genes and their respective products in Azospirillum. ...
Search results for Azospirillum brasilense Sp245. Your search did not match any of the products we carry. Please try browsing ...
... lipoferum 4B and Azospirillum sp. B510). The Azospirillum core genome was established and consists of 2,328 proteins, ... In this study, an additional genome of an A. brasilense strain, isolated from maize grown on an alkaline soil in the northeast ... The genomes of several Azospirillum strains belonging to different species, isolated from various host plants and locations, ... Comparative genomic analyses were performed on this new genome and three other genomes (A. brasilense Sp245, A. ...
The major feature of the plant-growth-promoting bacteria Azospirillum brasilense is its ability to modify plant root ... These results show that aerobic NO synthesis in A. brasilense could be achieved by different pathways and give evidence for an ... Here, we analyzed aerobic NO production by A. brasilense Sp245 wild type (wt) and its mutants Faj009 (IAA-attenuated) and ... providing evidence that NO mediated Azospirillum-induced root branching. ...
Key words: Two-component system protein, ·cyst development, ·nitrogen fixation,·Azospirillum brasilense. ... Moreover, cstA mutants are affected in colony morphology which are essential for A. brasilense cells to differentiate into cyst ... These observations suggested that cstA is involved in cyst development in A. brasilense. ... Mutants of the hybrid sensor kinase CstA affect cyst cell development in Azospirillum brasilense Sp7. Lixian Wu 1#, Yanhua Cui ...
with Azospirillum brasilense is beneficial to soybean yield, mainly using the in-furrow method of application for ... In this context, Azospirillum species, a nitrogen-fixing microorganism found in the rhizosphere of various plant species, may ... in-furrow and seed-applied) combined with an in-furrow application of Azospirillum spp. At R2 growth stage, the nodule number, ... associated with the co-inoculation with Azospirillum spp. The tested treatments consisted of the absence of N fertilizer and ...
Blaha C.A.G., Revers L.F., Passaglia L.M.P., Frazzon J., Schrank I.S. (2000) Characterization of an Azospirillum brasilense Tn5 ... ed.), Azospirillum IV: Genetics, Physiology and Ecology, p.16-25. Proc. Fourth Bayrenth Azospirillum Workshop, Bayrenth, ...
Azospirillum brasilense (bacteria). Method. single particle reconstruction / cryo EM / Resolution: 3.9 Å Details. Authors. ... Structure of Azospirillum brasilense Glutamate Synthase in a4b4 oligomeric state.. Map data. Details. Sample. Glutamate ... Title: Cryo-EM Structures of Azospirillum brasilense Glutamate Synthase in Its Oligomeric Assemblies.. Authors: Paolo Swuec / ... Here, we present the cryo-electron microscopy structures of Azospirillum brasilense GltS in four different oligomeric states ( ...
Flocculation in Azospirillum brasilense and Azospirillum lipoferum: exopolysaccharides and cyst formation. J Bacteriol 163:716- ... Azospirillum lipoferum and Azospirillum brasilense surface polysaccharide mutants that are affected in flocculation. J Appl ... Calcofluor- and lectin-binding exocellular polysaccharides of Azospirillum brasilense and Azospirillum lipoferum. J Bacteriol ... An Azospirillum brasilense Tn5 mutant with modified stress response and impaired in flocculation. Antonie Van Leeuwenhoek 83:35 ...
Sadasivan L., Neyra C.A. (1988) Carbon Sources for the In-Vivo Nitrate Reductase Activity in Azospirillum Brasilense Cells. In ... Carbon Sources for the In-Vivo Nitrate Reductase Activity in Azospirillum Brasilense Cells. ... Nitrate reduction nitrate reductase activity carbon metabolism A. brasilense This is a preview of subscription content, log in ... The use of α -KG as energy source by the A brasilense cells was confirmed by the uptake studies using radioactively labelled C ...
Tomato by Using the Plant Growth-Promoting Bacterium Azospirillum brasilense. Yoav Bashan, Luz E. de-Bashan ... tomato) in tomatoes treated with a combination of Azospirillum brasilense, bactericides and mild heat, p. 296-300. In S. H. De ... Tomato by Using the Plant Growth-Promoting Bacterium Azospirillum brasilense Message Subject (Your Name) has forwarded a page ... Tomato plants are hosts to Azospirillum brasilense, a plant growth-promoting bacterium (PGPB) (7, 8), and Pseudomonas syringae ...
Study the Plasmid Rearrangement in This Bacterium and to Search for Homologous Sequences in Plasmids of Azospirillum brasilense ... and 120-MDa Plasmids of Azospirillum brasilense Sp245 to ... and Azospirillum brasilense sp. Nov.. Tarrand, J.X.; Krieg, N.E ... The Use of Fragments of the 85- and 120-MDa Plasmids of Azospirillum brasilense Sp245 to Study... Katsy, E.; Borisov, I.; ... The Use of Fragments of the 85- and 120-MDa Plasmids of Azospirillum brasilense Sp245 to Study the Plasmid Rearrangement in ...
Our results show that the GlnB protein is required for transcription activation by Azospirillum brasilense NifA and it cannot ... The Azospirillum brasilense transcription regulator NifA and the nitrogen-status signaling proteins GlnB, GlnZ and GlnK were ... Functional analysis of the fixL/fixJ and fixK genes in Azospirillum brasilense Sp7. *Huamin Li, Feng Xu, Xiaojie Ren, Sanfeng ... Expression and characterization of an N-truncated form of the NifA protein of Azospirillum brasilense. *C.Y. Nishikawa, L M ...
The Azospirillum brasilense Sp245 genome harbours nine genes encoding σE, of which two are adjacent to the genes encoding ChrR- ... We describe here the role and regulation of a new pair of rpoE-chrR, which was found in the genome of A. brasilense Sp7 in ... Inactivation of chrR2 or overexpression of rpoE2 in A. brasilense Sp7 resulted in an overproduction of carotenoids. It also ... Vanstockem M., Michiels K., Vanderleyden J., Van Gool A. P..( 1987;). Transposon mutagenesis of Azospirillum brasilense and ...
... Alternative ... Qualidade de semente, índice de conteúdo de clorofila e teor nitrogênio foliar em milho inoculado com Azospirillum brasilense ... Seed quality, chlorophyll content index and leaf nitrogen levels in maize inoculated with Azospirillum brasilense. Revista ... Os genótipos diferem em relação à inoculação com A. brasilense. Os híbridos foram responsivos à inoculação com A. brasilense ...
Azospirillum gen. nov. and two species, Azospirillum lipoferum (Beijerinck) comb. nov. and Azospirillum brasilense sp. nov". ... who also added Azospirillum brasilense to the genus. By 2020, twenty-one species of Azospirillum had been described, most of ... "Root-surface colonization of black mangrove seedlings by Azospirillum halopraeferens and Azospirillum brasilense in seawater". ... Azospirillum are gram-negative, do not form spores, and have a slightly-twisted oblong-rod shape. Azospirillum have at least ...
... including the most comprehensively studied Azospirillum brasilense, are non‐pathogenic soil bacteria that promote the growth of ... Bacteria of the genus Azospirillum, including the most comprehensively studied Azospirillum brasilense, are non‐pathogenic soil ... Genome sequence of Azospirillum brasilense CBG497 and comparative analyses of Azospirillum core and accessory genomes provide ... Azospirillum brasilense: Laboratory Maintenance and Genetic Manipulation. Jessica Gullett1, Lindsey ONeal1, Tanmoy Mukherjee1 ...
Relation between cellulolytic bacteria and Azospirillum brasilense Fayez M. F. A.; Egypt. J. Microbiol. 1988; 23 (3): 451-63 ... Citation: M. F. A. Fayez , Relation between cellulolytic bacteria and Azospirillum brasilense, Egypt. J. Microbiol. 1988; 23 (3 ... Nitrogen gains and efficiency of fixation were markedly increased as a result of the association between Azospirillum and ...
The plant growth promoting bacterium Azospirillum brasilense Sp7 accumulates high quantities of bioplastic PHB as carbon and ... To understand the role of A. brasilense Sp7 PhaP1 (PhaP1Abs) on PHB synthesis, the phaP1 gene (AMK58_RS17065) was deleted. The ... This study reports the first analysis of a phasin protein in A. brasilense Sp7. ... brasilense. phaP1, phaP2 and phaP3 genes were able to respond to the growth conditions tested. ...
Azospirillum brasilense is one of the most promising PGPB and wheat roots colonized by A. brasilense is a good model to ... We performed a dual RNA-Seq transcriptional profiling of wheat roots colonized by A. brasilense strain FP2. cDNA libraries from ... Overall, we identified 23,215 wheat expressed ESTs and 702 A. brasilense expressed transcripts. Bacterial colonization caused ... brasilense expressed genes. PGPB colonization enhanced the expression of plant genes related to nutrient up-take, nitrogen ...
... from Azospirillum brasilense Sp245. Plus protein sequence and external database links. ... Domain assignment for gi,392384140,ref,YP_005033336.1, from Azospirillum brasilense Sp245. Domain architecture ...
Azospirillum brasilense Sp245 plasmid AZOBR_p2. Genome. Enlarge Image - Zoomable Map. Total size (bp). 912449. G + C content ...
... Author. * Portugal ... Nutritional aspects of corn due to cover crops, nitrogen doses and inoculation with Azospirillum brasilense. Australian Journal ... Inoculation via seeds using Azospirillum brasilense did not increase the accumulation of dry matter and nutrients of corn ... in topdressing and inoculation via seeds using Azospirillum brasilense. The experiment comprised randomized blocks in a 6 × 4 ...
The external adsorption of A. brasilense to wheat roots can be categorized as a weak active process. ... Azospirillum brasilense Cd, when inoculated onto wheat roots, multiplied and formed aggregates on the root surfaces and ... Evidence for a Weak Active External Adsorption of Azospirillum brasilense Cd to Wheat Roots * Yoav Bashan, Hanna Levanony and ... SUMMARY: Azospirillum brasilense Cd, when inoculated onto wheat roots, multiplied and formed aggregates on the root surfaces ...
  • Baldani VLD, Baldani JI, Döbereiner J (1983) Effects of Azospirillum inoculation on root infection and nitrogen incorporation in wheat. (springer.com)
  • This study explored whether A . brasilense and P. fluorescens are involved in modifying N transformations, N-supplying capacity, and enzyme activities in the rice rhizosphere, and the performance of rice biomass after inoculation with A . brasilense and P. fluorescens was also evaluated. (springer.com)
  • Rice inoculation was conducted under pot culture conditions in 2014 and 2015, and the experiment included four treatments: a control (CT), rice seedling roots inoculated with A . brasilense (M b ), rice seedling roots inoculated with P. fluorescens (M p ), and rice seedling roots inoculated with a mixture of A . brasilense and P. fluorescens (M bp ). (springer.com)
  • Co-inoculation with A . brasilense and P. fluorescens in the rice rhizosphere greatly increased the nitrogenase activities in the soil, and inoculating with A . brasilense alone in the rice rhizosphere also showed good results. (springer.com)
  • Finally, rice biomass increased greatly after A . brasilense and P. fluorescens inoculation in the rhizosphere. (springer.com)
  • The most beneficial effects were observed with A . brasilense and P. fluorescens co-inoculation in the rice rhizosphere. (springer.com)
  • associated with the co-inoculation with Azospirillum spp. (academicjournals.org)
  • associated to the in-furrow co-inoculation with Azospirillum spp. (academicjournals.org)
  • Effect of nitrogen fertilization associated with inoculation of Azospirillum brasilense and Herbaspirillum seropedicae on corn. (academicjournals.org)
  • Inoculation of seeds with a mixed culture of the two bacterial strains resulted in a reduction of the pathogen population in the rhizosphere, an increase in the A. brasilense population, the prevention of bacterial speck disease development, and improved plant growth. (asm.org)
  • Foliar inoculation of A. brasilense after P. syringae pv. (asm.org)
  • The aim of this study was to evaluate differences between maize genotypes in relation to the germination response of the seeds and the growth of seedlings inoculated with Azospirillum brasilense, as well as the effect of inoculation on nitrogen levels and the chlorophyll content index of the leaves. (unesp.br)
  • Nitrogen levels and chlorophyll content index were evaluated in leaves of the same four genotypes grown in a greenhouse under different nitrogen supply systems and methods of inoculation with A. brasilense. (unesp.br)
  • The genotypes differ with regard to inoculation with A. brasilense. (unesp.br)
  • The hybrids were responsive to inoculation with A. brasilense for root dry matter weight. (unesp.br)
  • The objective of this study is to evaluate the accumulation potential of nitrogen, phosphorus and potassium in: a) cover crops (millet, crotalaria, pigeon pea, millet + crotalaria, millet + pigeon pea and fallow) and b) corn plants sown in succession to the cover crops and with application of nitrogen doses (0, 40, 80 and 120 kg ha-1) in topdressing and inoculation via seeds using Azospirillum brasilense. (unesp.br)
  • Inoculation via seeds using Azospirillum brasilense did not increase the accumulation of dry matter and nutrients of corn plants. (unesp.br)
  • An experiment was carried out with endophytic fixing bacteria Azospirillum brasilense and Pseudomonas fluorescens isolated from brinjal, in different combinations with inorganic fertilizers by seed inoculation of brinjal to observe preliminary vegetative growth at 15th and 30th day and pigment contents in vegetable nursery bed (proplates). (scipress.com)
  • The aim of this study was to present the role of diazotrophic bacteria of the genera Azospirillum, Azotobacter, Bradyrhizobium, Rhizobium and Klebsiella as phosphate solubilizing bacteria and indolic compounds producers, as well as to determine in a preliminary way the effect of the inoculation of maize plants with these bacteria and the assimilation of phosphorus under greenhouse conditions. (thefreelibrary.com)
  • Upon inoculation, the plant growth-promoting bacteria Azospirillum faced tough competition from the. (picsearch.com)
  • Azospirillum brasilense inoculation increased the accumulation of soluble sugar and soluble protein which reflected an increase in the production of fresh, dry matter and water content with increasing values of osmotic pressure of the tested plants under Cu++ treatment. (scirp.org)
  • Experimental treatments were 1) no inoculation 2) Azospirillum brasilense inoculate 3) Bradyrhizobium japonicum inoculate and 4) Rhizobium leguminosarum biovar viceae inoculate. (wku.edu)
  • Bacterial inoculation of maize, mainly with Azospirillum , has been a successful common practice (5, 23, 30) . (scielo.org.ar)
  • Currently, the EEA C. del Uruguay is working on seed inoculation with Azospirillum which is presented as a promoter of root growth, the first results have given substantial increases in the rapeseed granary yield in the plots inoculated with azospirillum but said work it is still under evaluation. (agriville.com)
  • 3]]] ==='''''Azospirillum brasilense'''''=== ==Description and Significance== ''Azospirillum brasilense'' is one of the most well-studied plant growth promoting bacteria. (kenyon.edu)
  • 1]]] Many countries use bacterial inoculants containing ''A.brasilense'' alone or in concert with other plant growth promoting bacteria. (kenyon.edu)
  • The major feature of the plant-growth-promoting bacteria Azospirillum brasilense is its ability to modify plant root architecture. (apsnet.org)
  • The contribution of the plant growth-promoting bacteria Azospirillum spp. (picsearch.com)
  • The plant growth-promoting bacteria Azospirillum is a rhizosphere bacteria (root dweller). (picsearch.com)
  • The interaction between the plant growth-promoting bacteria Azospirillum and its host plant can be. (picsearch.com)
  • The genome of A. brasilense Sp245 has been sequenced and is 7Mbp in size and spread across 7 chromosomes. (wikipedia.org)
  • In this chapter, experimental data on plasmid plasticity in the type strain A. brasilense Sp7 and in the facultative endophyte A. brasilense Sp245 are discussed. (springer.com)
  • A spontaneous reorganization of 85- and 120-MDa plasmids gave rise to an A. brasilense Sp245 derivative with a novel cell-surface architecture and with altered social motility and biofilm formation. (springer.com)
  • Here, we analyzed aerobic NO production by A. brasilense Sp245 wild type (wt) and its mutants Faj009 (IAA-attenuated) and Faj164 (periplasmic nitrate reductase negative), and its correlation with tomato root-growth-promoting effects. (apsnet.org)
  • The Use of Fragments of the 85- and 120-MDa Plasmids of Azospirillum brasilense Sp245 to Study. (deepdyve.com)
  • Two EcoRI fragments homologous to the fla/laf/mot/swa loci of p85 were found in A. brasilense Sp245 DNA, whereas only one copy was preserved in the Sp245.5 mutant. (deepdyve.com)
  • The Azospirillum brasilense Sp245 genome harbours nine genes encoding σ E , of which two are adjacent to the genes encoding ChrR-type zinc-binding anti-sigma (ZAS) factors. (microbiologyresearch.org)
  • Bashan Y, de-Bashan LE (2010) How the plant growth-promoting bacterium Azospirillum promotes plant growth-a critical assessment. (springer.com)
  • The motile microaerophilic bacterium Azospirillum brasilense navigates oxygen gradients by aerotaxis in order to locate low oxygen concentrations that can support metabolism. (asm.org)
  • tomato, the causal agent of bacterial speck of tomato, and the plant growth-promoting bacterium Azospirillum brasilense were inoculated onto tomato plants, either alone, as a mixed culture, or consecutively. (asm.org)
  • Tomato plants are hosts to Azospirillum brasilense , a plant growth-promoting bacterium (PGPB) ( 7 , 8 ), and Pseudomonas syringae pv. (asm.org)
  • Although A. brasilense is known as a rhizosphere bacterium ( 7 ), some strains are ephiphytic ( 7 , 10 ), and P. syringae pv. (asm.org)
  • The plant growth promoting bacterium Azospirillum brasilense Sp7 accumulates high quantities of bioplastic PHB as carbon and energy source. (springeropen.com)
  • A. brasilense is a plant associate bacterium, nitrogen-fixing and plant growth promoter. (ufpr.br)
  • Here, we show that a bacterium, Azospirillum brasilense , which utilizes two chemotaxis signaling systems controlling distinct motility parameters, coordinates its chemotactic responses through the production of two separate membrane-bound chemoreceptor arrays by mixing paralogs within chemotaxis baseplates. (asm.org)
  • Increased growth of the microalga Chlorella vulgaris when coimmobilized and cocultured in alginate beads with the plant-growth-promoting bacterium Azospirillum brasilense. (bio.net)
  • AZOS, short for Azospirillum Brasilense, is a nitrogen-fixing super bacterium that can replace 50% of the nitrogen fertilizer required by plants. (hydroponics.net)
  • Plant Growth Substances Produced by Azospirillum brasilense and Their Effect on the Growth of Pearl Millet (Pennisetum americanum L.)". Applied and Environmental Microbiology. (wikipedia.org)
  • A taxonomic study of the Spirillum lipoferum group, with descriptions of a new genus, Azospirillum gen. nov. and two species, Azospirillum lipoferum(Beijerinck) comb. (wikipedia.org)
  • Bastarrachea F, Zamudio M, Rivas R (1988) Non-encapsulated mutants of Azospirillum brasilense and Azospirillum lipoferum . (springer.com)
  • Due to this discovery, Spirillum lipoferum was reclassified in 1978 as Azospirillum lipoferum by Jeffery Tarrand, Noel Krieg, and Döbereiner, who also added Azospirillum brasilense to the genus. (wikipedia.org)
  • Colonization of wheat roots with Azospirillum lipoferum labeled with the green fluorescent protein (gfp) reporter gene. (asmblog.org)
  • To gain insights into how these bacteria transitioned from marine to terrestrial ecosystems, the authors sequenced the genomes of Azospirillum brasilense and Azospirillum lipoferum . (asmblog.org)
  • Nine bacterial strains were used: Azospirillum brasilense (C16 and SP7), Azospirillum lipoferum C15, Azotobacter chroococcum AC1 and AC10, Azotobacter vinelandii AV5, Bradyrhizobium japonicum USDA110, Rhizobium sp. (thefreelibrary.com)
  • Kinetics of kelthane uptake and distribution in azospirillum lipoferum. (worldcat.org)
  • In A. brasilense and Azospirillum lipoferum posttranslational control of nitrogenase, in response to ammonium and anaerobiosis, involves ADP-ribosylation of the nitrogenase iron protein, mediated by the enzymes DraT and DraG. (agriville.com)
  • A 40-kb DNA region containing the major cluster of nif genes has been isolated from the Azospirillum brasilense Sp7 genome. (nih.gov)
  • This result suggests the differential expression of the nif genes and their respective products in Azospirillum. (nih.gov)
  • In addition, genes encoding proteins related to bacterial chemotaxi, biofilm formation and nitrogen fixation were highly expressed in the sub-set of A. brasilense expressed genes. (biomedcentral.com)
  • Por meio de ferramentas de bioinformática foram encontrados dois genes homólogos a LOG de Arabidopsis thaliana no genoma de Azospirillum brasilense FP2. (ufpr.br)
  • Azospirillum brasilense FP2 has two genes homologous to LOG of A. thaliana as revealed by genome searching through computational analysis with amino acid sequences of LOGs previously described. (ufpr.br)
  • The astonishing results indicated that about half of the Azospirillum genes seem to be horizontally transferred. (asmblog.org)
  • Use of lacZ Fusions to Study the Expression of nif Genes of Azospirillum brasilense in Association with Plants. (apsnet.org)
  • A number of genes essential for Trp production have been isolated in A. brasilense, including trpE(G) which codes for anthranilate synthase, the key enzyme in Trp biosynthesis. (agriville.com)
  • A. brasilense is able to fix nitrogen in the presence of low oxygen levels, making it a microaerobic diazotroph. (wikipedia.org)
  • An isolate from the genus Azospirillum was isolated from nitrogen poor soils in the Netherlands in 1925, however the species A. brasilense was first described in 1978 in Brazil, since this genus is widely found in the rhizospheres of grasses around the world where it confers plant growth promotion. (wikipedia.org)
  • 3]]] The phenotypic differentiation of ''A.brasilense'' from other diazotrophic members of group IV is based upon the size and shape of the bacterial cell, and the mode of nitrogen fixation among other things. (kenyon.edu)
  • 1]]] ''A.brasilense'' is capable of fixing nitrogen through assimilation of ammonium and the activity of nitrogenase. (kenyon.edu)
  • Azospirillum brasilense ( A . brasilense ) and Pseudomonas fluorescens ( P. fluorescens ) have long been known to benefit inoculated rice plants, but their effects on nitrogen (N) transformations and enzyme activities in the rice rhizosphere are unclear. (springer.com)
  • In this context, Azospirillum species, a nitrogen-fixing microorganism found in the rhizosphere of various plant species, may be studied as a way of providing soybean crop with the part of the N it needs. (academicjournals.org)
  • Blaha C.A.G., Revers L.F., Passaglia L.M.P., Frazzon J., Schrank I.S. (2000) Characterization of an Azospirillum brasilense Tn5 Mutant with Enhanced Nitrogen Fixtation. (springer.com)
  • The Azospirillum brasilense transcription regulator NifA and the nitrogen-status signaling proteins GlnB, GlnZ and GlnK were expressed in Escherichia coli and analyzed for their ability to activate nif gene expression. (semanticscholar.org)
  • Azospirillum is a Gram-negative, microaerophilic, non-fermentative and nitrogen-fixing bacterial genus from the family of Rhodospirillaceae. (wikipedia.org)
  • Azospirillum are aerobic, but many can also function as microaerobic diazotrophs, meaning, under low oxygen conditions, they can change inert nitrogen from the air into biologically useable forms. (wikipedia.org)
  • Microbiologists use nitrogen-free semi-solid media to isolate Azospirillum from samples. (wikipedia.org)
  • In addition to these changes, Azospirillum can also alter the forms of plant nutrients such as nitrogen and phosphorus to make them more available to plants. (wikipedia.org)
  • However, how much nitrogen Azospirillum contribute to crop plants via biological fixation is debated. (wikipedia.org)
  • Nitrogen gains and efficiency of fixation were markedly increased as a result of the association between Azospirillum and cellulose - solubilizing bacteria. (who.int)
  • For example, Azospirillum colonizes the roots of cereals (rice, wheat, and maize) and other grasses where it enhances plant growth by carrying out nitrogen fixation and secreting phytohormones, such as indole-3-acetic acid. (asmblog.org)
  • The team's experiments showed that S. viridis received 100% of its nitrogen needs from the bacteria Azospirillum brasilense when associated with plant root surfaces. (isaaa.org)
  • Four aspects of the Azospirillum-plant root interaction are highlighted: natural habitat, plant root interaction, nitrogen fixation and biosynthesis of plant growth hormones. (agriville.com)
  • In Azospirillum brasilense and H. seropedicae (alpha- and beta-subgroup, respectively), NifA is inactive in conditions of excess nitrogen. (agriville.com)
  • 1]]] ==Ecology and Pathogenesis== ''Azosprillum brasilense'' is routinely found in the plant rhizosphere of crop plants and agricultural lands as well as from grasses and cereals. (kenyon.edu)
  • Assmus B, Hutzler P, Kirchhof G et al (1995) In situ localization of Azospirillum brasilense in the rhizosphere of wheat with fluorescently labeled, rRNA-targeted oligonucleotide probes and scanning confocal laser microscopy. (springer.com)
  • To explore the effects of A. brasilense and P. fluorescens strains on N transformations and enzyme activities in the rice rhizosphere, N fertilizer was not applied in this trial, while the full doses of P (150 mg P 2 O 5 per pot) and K (320 mg K 2 O per pot) were applied. (springer.com)
  • Inoculating the rice rhizosphere with A . brasilense and P. fluorescens greatly improved the ammonification activities in the soil, and the effects were more favorable in the M bp treatment. (springer.com)
  • Inoculating A . brasilense and P. fluorescens in the rice rhizosphere accelerated N transformations and improved the N-supplying capacity of the rhizosphere soil, and increased rice biomass. (springer.com)
  • When inoculated onto separate plants, the A. brasilense population in the rhizosphere of tomato plants was 2 orders of magnitude greater than the population of P. syringae pv. (asm.org)
  • tomato did not survive in the rhizosphere in the presence of A. brasilense . (asm.org)
  • Tejera, N.C., Lluch, M.V., Martìnez-Toledo, V. and Gonzàlez-López, J. (2005) Isolation and Characterization of Azotobacter and Azospirillum Strains from the Sugarcane Rhizosphere. (scirp.org)
  • Whole-Genome Sequences of Four Indian Isolates of Azospirillum brasilense. (nih.gov)
  • A third genome from an unidentified Azospirillum species was described while their work was in progress. (asmblog.org)
  • In all three species, the Azospirillum genome consists of seven replicons. (asmblog.org)
  • In fact, there are more genomic rearrangement in Azospirillum than in Rhizobium , the multi-replicon α-proteobacterium that previously had the distinction of having the most plastic genome known among the prokaryotes. (asmblog.org)
  • with Azospirillum brasilense is beneficial to soybean yield, mainly using the in-furrow method of application for Bradyrhizobium spp. (academicjournals.org)
  • Since the 1970s, Azospirillum strains have been researched for their effects in improving agricultural yields and improving growth of wild plants. (wikipedia.org)
  • Specifically, in the case of A. brasilense, this characteristic could be used to generate more efficient strains in the process of promoting plant growth. (ufpr.br)
  • Bacterial strains - Bacillus cereus , Pseudomonas fluorescens , B. megaterium , Azospirillum brasilense , B. thuringiensis var. (scielo.br)
  • These results show that aerobic NO synthesis in A. brasilense could be achieved by different pathways and give evidence for an NO-dependent promoting activity on tomato root branching regardless of bacterial capacity for IAA synthesis. (apsnet.org)
  • tomato was established on the leaves did not alleviate bacterial speck disease, and A. brasilense did not survive well in the phyllosphere under these conditions, even in a mist chamber. (asm.org)
  • Based on our results, we propose that A. brasilense be used in prevention programs to combat the foliar bacterial speck disease caused by P. syringae pv. (asm.org)
  • The seeds treated with 75% Chemical fertilizer + Azospirillum brasilense + Pseudomonas fluorescens (T 6 ) showed maximum plant vegetative characters, followed by others compared with control. (scipress.com)
  • PGPR within genera known to stimulate the growth of plants are Azospirillum, Azotobacter, Bacillus, Enterobacter, and Pseudomonas . (hindawi.com)
  • Interactions of Azotobacter chroococcum, Azospirillum brasilense and Streptomyces mutabilis, in relation to their effect on wheat development. (thefreedictionary.com)
  • Root colonization by Azospirillum brasilense visualizing by Fluorescence In situ Hybridization. (picsearch.com)
  • Efficiency of inoculant with Azospirillum brasilense on the growth and yield of second-harvest maize. (academicjournals.org)
  • Croes CL, Moens S, van Bastelaere E et al (1993) The polar flagellum mediates Azospirillum brasilense adsorption to wheat roots. (springer.com)
  • Azospirillum brasilense is one of the most promising PGPB and wheat roots colonized by A. brasilense is a good model to investigate the molecular basis of plant-PGPB interaction including improvement in plant-NUE promoted by PGPB. (biomedcentral.com)
  • We performed a dual RNA-Seq transcriptional profiling of wheat roots colonized by A. brasilense strain FP2. (biomedcentral.com)
  • cDNA libraries from biological replicates of colonized and non-inoculated wheat roots were sequenced and mapped to wheat and A. brasilense reference sequences. (biomedcentral.com)
  • Azospirillum brasilense Cd, when inoculated onto wheat roots, multiplied and formed aggregates on the root surfaces and established an internal root population. (microbiologyresearch.org)
  • The external adsorption of A. brasilense to wheat roots can be categorized as a weak active process. (microbiologyresearch.org)
  • Spontaneous changes in the plasmid profile of A. brasilense Sp7 derivatives encompassing 90- and 115-MDa replicons were concurrent with variations in the colony morphology, cell antigenic structure, swarming, and biofilm formation on abiotic surfaces and plant roots. (springer.com)
  • Acosta-Cruz E, Wisniewski-Dyé F, Rouy Z et al (2012) Insights into the 1.59-Mbp largest plasmid of Azospirillum brasilense CBG497. (springer.com)
  • This study reports the first analysis of a phasin protein in A. brasilense Sp7. (springeropen.com)
  • In this study, purified ADP‐ribosylated Fe‐protein was used as substrate to study the mechanism involved in the regulation of A. brasilense DraG in vitro. (usda.gov)
  • D3NZ62_AZOS1 DotU domain-containing protein OS=Azospirillum sp. (uniprot.org)
  • Structural and functional analysis of Azospirillum brasilense GlnB protein. (postjobfree.com)
  • I have been working with chemotactic protein expression in the rhizobacterium Azospirillum brasilense under various growth conditions using mRNA as evidence of protein presence. (bioquest.org)
  • The genus Azospirillum belongs in the alpha-Proteobacteria class of bacteria. (wikipedia.org)
  • The genus Azospirillum belongs to the α-proteobacteria, one of the major groups of hydrobacteria (a clade of prokaryotes that first appeared in marine habitats). (asmblog.org)
  • Based on the phylogenetic, phenotypic and chemotaxonomic features, strain CC-LY788 T represents a novel species of the genus Azospirillum , for which the name Azospirillum soli sp. (microbiologyresearch.org)
  • Azospirillum represents the best characterized genus of plant growth-promoting rhizobacteria. (agriville.com)
  • How Does the DraG-P II Complex Regulate Nitrogenase Activity in Azospirillum brasilense ? (wiley.com)
  • The ammonium‐dependent posttranslational regulation of nitrogenase activity in Azospirillum brasilense requires dinitrogenase reductase ADP‐ribosyl transferase (DraT) and dinitrogenase reductase ADP‐glycohydrolase (DraG). (usda.gov)
  • At least three pathways for indole-3-acetic acid (IAA) biosynthesis in A. brasilense exist: two Trp-dependent (the indole-3-pyruvic acid and presumably the indole-3-acetamide pathway) and one Trp-independent pathway. (agriville.com)
  • 3]]] ''A.brasilense'' can be distinguished from other Azosprillum species based upon the ability of utilization of ribose and mannose. (kenyon.edu)
  • By 2020, twenty-one species of Azospirillum had been described, most of which had been discovered after the year 2000. (wikipedia.org)
  • Over 113 species of plants in 35 different plant families have been documented to have benefited from association with a species of Azospirillum. (wikipedia.org)
  • Azospirillum brasilense , and several species of Paenibacillus ( P. fujiensis , P. durus , P. borealis , P. graminis , P. massiliensis and P. wynnii ) were identified. (scirp.org)
  • A qualidade fisiológica de sementes dos híbridos simples, AG7098 e 2B707, e das variedades sintéticas experimentais, V2 e V4, inoculados com A. brasilense foi avaliada por meio de testes de germinação, porcentagem e velocidade de emergência e, massa de matéria seca de parte aérea e raiz. (unesp.br)
  • A.brasilense'' colonizes the surface of plant roots through a two step process: attachment and anchoring. (kenyon.edu)
  • Burdman S, Jurkevitch E, Okon Y (2000) Surface characteristics of Azospirillum brasilense in relation to cell aggregation and attachment to plant roots. (springer.com)
  • The physiological seeds quality from the single-cross hybrids AG7098 and 2B707, and from the experimental synthetic varieties V2 and V4, inoculated with A. brasilense, was tested for germination, percentage and rate of emergence, and dry matter weight of the shoots and roots. (unesp.br)
  • Azospirillum are found in freshwater and soil habitats, especially in close relationships with plant roots. (wikipedia.org)
  • Many Azospirillum excrete plant hormones that alter how the roots of plants grow. (wikipedia.org)
  • Azospirillum also make antioxidants that protect the plant roots from stresses due to drought and flooding. (wikipedia.org)
  • Azospirillum competes with pathogens on the roots for space and for trace nutrients such as iron. (wikipedia.org)
  • The attachment of Azospirillum cells to plant roots occurs in two steps. (agriville.com)
  • We previously characterized a gene (originally named org35 , renamed cstA ) encoding aPAS/PAC sensor hybrid histidine kinase (HK) which interacts with Azospirilum brasilense NifA in a yeast two-hybrid system. (academicjournals.org)
  • GlnB is specifically required for Azospirillum brasilense NifA activity in Escherichia coli. (semanticscholar.org)
  • In 2009, the first commercial inoculants containing Azospirillum came on the market, and by 2018, over 3 million doses were applied annually to crops by farmers, mainly in South America. (wikipedia.org)
  • A strain originally classified as Roseomonas fauriae was reclassified as A. brasilense. (wikipedia.org)
  • Cohen MF, Han XY, Mazzola M (2004) Molecular and physiological comparison of Azospirillum spp. (springer.com)
  • O objetivo deste estudo foi avaliar diferenças entre genótipos de milho quanto à resposta germinativa das sementes e crescimento de plântulas inoculadas com Azospirillum brasilense, assim como o efeito da inoculação no teor de nitrogênio e índice de conteúdo de clorofila foliar. (unesp.br)
  • Las semillas germinadas e inoculadas se plantaron en vermiculita y posteriormente las plántulas fueron cultivadas en vermiculita o en suelo, para evaluar el efecto promotor del crecimiento vegetal de dicha bacteria, bajo condiciones de laboratorio y de campo. (scielo.org.ar)
  • En campo, la biomasa de la mazorca fue también mayor en las plantas inoculadas respecto de las plantas no inoculadas. (scielo.org.ar)
  • 15835904 ) In addition, the enzyme was compared with the phenylpyruvate decarboxylase from Azospirillum brasilense and the indolepyruvate decarboxylase from Enterobacter cloacae. (hmdb.ca)
  • Within its family, the Rhodospirillaceae, almost all of its known relatives are found in aquatic environments, suggesting that Azospirillum may have transitioned to life on land later, after the Precambrian divergence of hydrobacteria and terrabacteria. (asmblog.org)
  • 3]]] ==Structure, Metabolism, and Life Cycle== ''Azosprillium brasilense'' has a vibroid shape with single polar flagellum attached to the cell making it motile. (kenyon.edu)
  • Azospirillum brasilense 's preferred metabolism is adapted to microaerophily, and these motile cells quickly navigate to zones of low oxygen concentration by aerotaxis. (asm.org)
  • Borisov IV, Schelud'ko AV, Petrova LP, Katsy EI (2009) Changes in Azospirillum brasilense motility and the effect of wheat seedling exudates. (springer.com)
  • The aerotaxis and chemotaxis receptor, Tlp1, binds c-di-GMP via its C-terminal PilZ domain and promotes persistent motility by increasing swimming velocity and decreasing swimming reversal frequency, which helps A. brasilense reach low-oxygen zones. (asm.org)
  • 2]]] ''A.brasilense'' is capable of promoting growth of plants through the secretion of phytohormones, the most common being Indole Acetic Acid (IAA). (kenyon.edu)
  • Azospirillum brasilense is a motile alphaproteobacterium that possesses a single polar flagellum. (asm.org)
  • Motile A. brasilense cells respond tactically not only by biasing the probability of changes in the swimming direction of the polar flagellum (changes in swimming reversal frequency, equivalent to "tumbles" of E. coli ) but also by modulating transient increases in swimming velocity ( 6 ) ( Fig. 1 ). (asm.org)
  • To understand the role of A. brasilense Sp7 PhaP1 (PhaP1 Abs ) on PHB synthesis, the phaP1 gene (AMK58_RS17065) was deleted. (springeropen.com)
  • Nevertheless, the indole-3-pyruvate decarboxylase encoding ipdC gene is crucial in the overall IAA biosynthesis in Azospirillum. (agriville.com)
  • When cells are exposed to elevated levels of oxygen in their surroundings, motile A. brasilense cells implement an alternative response to aerotaxis and form transient clumps by cell-to-cell interactions. (asm.org)
  • Azospirillum IV: Genetics, Physiology and Ecology, p.16-25. (springer.com)
  • Whereas A. brasilense increases the growth and yield of tomato plants ( 14 ), P. syringae pv. (asm.org)
  • Azospirillum have at least one flagellum and sometimes multiple flagella, which they use to move rapidly. (wikipedia.org)
  • ABSTRACT: The interactive effect of different Cu++ concentrations (5 mM, 10 mM, 20 mM and 25 mM) and treatments with biofertilizers Azospirillum brasilense on growth, metabolites, minerals and osmotic pressure of wheat plants was investigated. (scirp.org)
  • A.brasilense'' belongs to the alpha subclass of Proteobacteria, Alphaproteobacteria. (kenyon.edu)
  • fructose, gluconate, glucose and TCA cycle intermediates were used as energy sources to study the invivo nitrate reductase activity in whole cells of A brasilense ATCC 29145. (springer.com)
  • Chemotaxis proteins (CheA and CheW) from each of the chemotaxis signaling systems (Che1 and Che4) could physically interact with one another, and chemoreceptors from both classes present in A. brasilense could interact with Che1 and Che4 proteins. (asm.org)
  • A. brasilense é uma bactéria associativa de plantas, fixadora de nitrogênio e promotora de crescimento vegetal. (ufpr.br)
  • Especificamente no caso de A. brasilense tal característica poderia ser utilizada para gerar estirpes mais eficientes no processo de promoção do crescimento vegetal. (ufpr.br)
  • Moreover, cstA mutants are affected in colony morphology which are essential for A. brasilense cells to differentiate into cyst-like forms. (academicjournals.org)
  • Azospirillum/Plant Associations. (kenyon.edu)
  • Azospirillum bacteria can promote plant growth. (wikipedia.org)
  • Azospirillum promote plant growth through a variety of mechanisms. (wikipedia.org)
  • Plant growth can also be promoted indirectly by Azospirillum reducing plant disease. (wikipedia.org)
  • Finally, wheat plants response differentially to Cu++ treatment according to its organ and Azospirillum brasilense treatment improved wheat plant efficiency to tolerate the effect of Cu++ stress. (scirp.org)
  • The relevance of each of these four aspects for plant growth promotion by Azospirillum is discussed. (agriville.com)
  • Adaptaci n Molecular en Cianobacterias: Interacci n entre el Metabolismo del Nitr geno y el Carbono con el Estado Redox Celular Via la Acci n de Metales Pesados. (us.es)
  • Sadasivan L., Neyra C.A. (1988) Carbon Sources for the In-Vivo Nitrate Reductase Activity in Azospirillum Brasilense Cells. (springer.com)
  • En este trabajo se aisló una bacteria de la rizósfera de maíz, que fue caracterizada mediante métodos fenotípicos y genotípicos e identifcada como Enterobacter sp. (scielo.org.ar)
  • M. F. A. Fayez , Relation between cellulolytic bacteria and Azospirillum brasilense, Egypt. (who.int)
  • O teor de nitrogênio e o índice de conteúdo de clorofila foram avaliados em folhas dos mesmos quatro genótipos cultivados em casa de vegetação sob diferentes sistemas de fornecimento de nitrogênio e formas de inoculação com A. brasilense. (unesp.br)
  • Os híbridos foram responsivos à inoculação com A. brasilense para massa de matéria seca de raiz. (unesp.br)