Results 151 to 160 of about 3,153 (182)
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Hydrogen oxidation in Azospirillum brasilense
1984Hydrogen oxidation by Azospirillum brasilense Sp7 was studied in N(,2)-fixing and NH(,4)('+)-grown batch cultures. The K(,m) for H(,2) of O(,2)-dependent H('3)H oxidation in whole cells was 9 uM. The rates of H('3)H and H(,2) oxidation were very similar, indicating that the initial H(,2) activation step in the overall H(,2) oxidation reaction was not ...
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Cloning of a Streptomyces Endoglucanase Gene in Azospirillum brasilense
1995The eglS gene from Streptomyces rochei A2, encoding an endoglucanase, was cloned in the conjugative vector pAF700 obtaining the 22.5 kb recombinant plasmid pCSF121. This plasmid was transferred to Escherichia coli DH1 and Azospirillum brasilense Sp6. E. coli [pCSF121] showed no endoglucanase activity, whereas A.
PERITO, BRUNELLA +2 more
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Chemosensory Responses in Azospirillum brasilense
2006The ability to swim and navigate the surrounding environment confers an advantage to motile bacteria, allowing the occupation of niches that are optimum for survival and growth. Bacteria are too small to sense their environment spatially, so they must sense the environment temporally by comparing the past and present environments and altering their ...
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Salt tolerance of Azospirillum brasilense.
Acta microbiologica Hungarica, 1986The effect of various salts on the growth and N2-ase activity of Azospirillum brasilense was tested. Bicarbonate was found to be the most toxic, followed by chlorides and sulphate. Tolerance of A. brasilense to these salts was comparable to that of many species of Rhizobium. SO4-- was stimulatory to growth and N2-ase activity up to 40 meq.
A V, Rao, B, Venkateswarlu
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Analysis of extracellular polysaccharides of Azospirillum brasilense
1991Bacteria of the genus Azospirillum live in association with the Graminae. Azospirillum has a growth-promoting effect due to nitrogen-fixation, phytohormone production and improved water household of the plant. Azospirillum is able to attach to plant roots (Umali-Garcia et al. 1980) and A. brasilense Sp245 can even invade into the root cortex.
Paul De Troch +5 more
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The NIFHDK Operon Of Azospirillum Brasilense Sp7
1985The transcriptional organization of the nifHDK cluster of Azospirillum was examined by transposon Tn5 mutagenesis, genetic complementation, and product analysis. Tn5 mutagenesis was performed in E. coli on plasmid pAB3, a derivative of pSUP202 in which the nifHDK region was cloned.
B. Perroud, S. K. Bandhari, C. Elmerich
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Osmoregulated Periplasmic Glucans of Azospirillum brasilense
1998Osmoregulated periplasmic glucans (OPG) are general components of the envelopes of Gram-negative bacteria and share the following features: i) glucose as the sole sugar; ii) localization in the periplasmic space; iii) synthesis under osmotic control and particularly abundant when the medium osmolarity is low.
S. Altabe +5 more
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Influence of Azospirillum Brasilense on Nodulation of Legumes
1988Combined inoculation of Rhizobium meliloti and Azospirillum brasilense Cd to seedlings of Medicago sativa grown in large petri dishes on sterile agar increased the number of nodules significantly but the effects depended on the concentrations of Azospirillum in the medium.
W. Schmidt +3 more
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Introduction of Plasmids into Azospirillum brasilense by Electroporation
2000The genus Azospirillum comprises Gram N2 fixing soil bacteria living in close association with the roots of numerous plants. Field trials, carried out at different locations have demonstrated significant plant growth promotion upon Azospirillum inoculation.
Ann Vande Broek, Jos Vanderleyden
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Polyhydroxybutyrate Metabolism in Azospirillum brasilense and Its Applications, a Review
Polymers, 2023Luis Javier MartÃnez Morales +1 more
exaly