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Phylogenetic Studies of the Genus Azospirillum
1995The 16S rDNA of seventeen Azospirillum strains, fourteen of which assigned to one of known A. amazonense, A. brasilense, A. halopraeferens, A. irakense and A. lipoferum species, and other three of uncertain taxonomic collocation, was sequenced and analysed after polymerase chain reaction amplification, in order to investigate the phylogenetic ...
FANI, RENATO +10 more
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2011
Use of new strain of nitrogen fixing bacteria Azospirillum sp. 77 for inoculation of spring wheat and spring triticale permitted to form an effective associative system diasotroph ??? plant. The bacterization promoted the reliable increase of potential nitrogenase activity in root zone of plant by 38-220 %, activated the biosynthetic processes, in ...
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Use of new strain of nitrogen fixing bacteria Azospirillum sp. 77 for inoculation of spring wheat and spring triticale permitted to form an effective associative system diasotroph ??? plant. The bacterization promoted the reliable increase of potential nitrogenase activity in root zone of plant by 38-220 %, activated the biosynthetic processes, in ...
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2015
The ability of Azospirillum to colonize the roots of plants depends on motility and chemotaxis. Azospirillum cells are motile and capable of chemotaxis toward organic acids, sugars, and some aminoacids. Azospirillum is also able to navigate gradients of oxygen, alternative electron acceptors, and redox active compounds.
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The ability of Azospirillum to colonize the roots of plants depends on motility and chemotaxis. Azospirillum cells are motile and capable of chemotaxis toward organic acids, sugars, and some aminoacids. Azospirillum is also able to navigate gradients of oxygen, alternative electron acceptors, and redox active compounds.
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Inoculation of millet with azospirillum
Plant and Soil, 1979Millet plants (Pennisetum glaucum) were grown at three levels of nitrogen fertilization with and without an inoculum of live nitrogen-fixing Azospirillum cells. The highest average rate of nitrogen fixation as estimated from acetylene reduction by excised preincubated roots was only 23g N2 fixed per ha per day and occurred after treatment with low ...
Lynn E. Barber +2 more
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1985
Pleomorphism in azospirilla appears to be induced by medium composition rather than pH. Complex organic media stimulate it and it is more pronounced in Azospirillum lipoferum than in A. brasilense. Besides ‘capsules’, protoplasmic globular structures (free protoplasts) sometimes may be produced. Under certain conditions the smaller cells appear to have
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Pleomorphism in azospirilla appears to be induced by medium composition rather than pH. Complex organic media stimulate it and it is more pronounced in Azospirillum lipoferum than in A. brasilense. Besides ‘capsules’, protoplasmic globular structures (free protoplasts) sometimes may be produced. Under certain conditions the smaller cells appear to have
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Interaction of Azospirillum and Mycorrhiza
2015The AM fungi interact with Azospirillum directly by providing niche and/or habitat or indirectly by modifying host plant morphophysiology. This communication in soil can be beneficial for both the microorganisms and the host plant. The Azospirillum inoculation is more successful and more profitable when other microorganisms are co-inoculated with ...
José Alfonso Domínguez-Núñez +2 more
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2011
Inoculation of Zerna inermis with azospirilum bacteria results in associated nitrogen fixation activity increase and initiation of plant development. Specimens of Azospirilum brasilense only were settled down in root zone. A. lipoferum influence on parameters increase indirectly ??? due to physiologically active substances (PAS) of inoculums.
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Inoculation of Zerna inermis with azospirilum bacteria results in associated nitrogen fixation activity increase and initiation of plant development. Specimens of Azospirilum brasilense only were settled down in root zone. A. lipoferum influence on parameters increase indirectly ??? due to physiologically active substances (PAS) of inoculums.
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Acta Biotechnologica, 1990
AbstractThe effect of ammonium nitrogen on the growth and efficiency of nitrogen fixation by A. lipoferum and A. brasilense grown under various growth conditions was investigated.
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AbstractThe effect of ammonium nitrogen on the growth and efficiency of nitrogen fixation by A. lipoferum and A. brasilense grown under various growth conditions was investigated.
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2014
?????????????????????? ??????????????????-?????????????????????????? ?????????????????? ?? ???????????????????? ?????????????? ?????? ???????????????????? ???????????????????????????? ???????????????????? A. brasilense Sp7 ?? Sp245. ???????????????????????????? ???????????????????? ?????????????????????????????????? ???????????? ???????????? ???????????
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?????????????????????? ??????????????????-?????????????????????????? ?????????????????? ?? ???????????????????? ?????????????? ?????? ???????????????????? ???????????????????????????? ???????????????????? A. brasilense Sp7 ?? Sp245. ???????????????????????????? ???????????????????? ?????????????????????????????????? ???????????? ???????????? ???????????
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Advances in the Genetics of Azospirillum
1985Bacteria of the genus Azospirillum are diazotrophs associated with the root of grasses, without formation of differentiated structure. Very little is known on the genetics of these bacteria and on the molecular biology of their association with plants. The bacteria, first described in 1922 by Beijerinck and rediscovered in 1963 by Becking, were called ...
Claudine Elmerich +4 more
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