Results 171 to 180 of about 3,253 (208)

Osmotolerance of diazotrophic rhizosphere bacteria

Plant and Soil, 1991
In the genus Azospirillum tolerance towards high concentrations of sodium chloride, sucrose or polyethylene glycol increased in the order A. amazonense A. lipoferum A. brasilense and A. halopraeferens. In A. brasilense and A. halopraeferens the compatible solutes trehaloseglutamate and an unknown compound were identified. A.
A. Hartmann, S. R. Prabhu, E. A. Galinski   +2 more
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Diversity of Nitrogenase Systems in Diazotrophs

Journal of Integrative Plant Biology, 2006
AbstractNitrogenase is a metalloprotein complex that catalyses the reaction of biological nitrogen fixation. At least three genetically distinct nitrogenase systems have been confirmed in diazotrophs, namely Nif, Vnf, and Anf, in which the active‐site central metals are Mo, V, and Fe, respectively. The present review summarizes progress on the genetic,
Ying Zhao, Shao‐Min Bian, Hui‐Na Zhou, Ju‐Fu Huang   +3 more
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Studies on the Diazotrophic Nature of Agrobacterium

1987
Although Agrobacterium and Rhizobium are known to be closely related (1) the former is always considered to be a plant pathogen. As a result, no investigation has ever been carried out to see if any Agrobacterium strains have an inherent ability to fix nitrogen either in the free-living condition or in crown galls produced by the bacterium.
Lalita Kanvinde, M. H. Soliman, H. Wardhan, Lise Nowell, D. Fox, G. R. K. Sastry   +5 more
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Ecology and Microbiology of Symbiotic Diazotrophs

1984
Nodulation of legumes by rhizobia occurs in a series of steps which include: (1) rhizobial growth in the plant rhizosphere; (2) attachment of the rhizobia to roothairs of the legume; (3) rhizobial induced root-hair curling; (4) infection thread formation within the root hairs (5) growth of the ...
W. J. Broughton, U. Samrey, C. E. Pankhurst, G. M. Schneider, C. P. Vance   +4 more
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Genomic Manipulations of the Diazotroph Azotobacter vinelandii

2018
The biological reduction of nitrogen gas to ammonia is limited to a select group of nitrogen-fixing prokaryotes. While nitrogenase is the catalyst of nitrogen fixation in these biological systems, a consortium of additional gene products is required for the synthesis, activation, and catalytic competency of this oxygen-sensitive metalloenzyme.
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The rice endophytic diazotroph and PGPR

1998
The selective pressure of the rhizoplane of rice plants for colonized beneficial rhizobacteria has been investigated. The rhizobacteria were isolated from the rhizoplane of rice variety Yue Guang (with a middling disease-resistant trait) and Yue Fu (with a high yield trait).
W. Song, H. L. Yang, X. L. Sun, Y. S. Wang, Y. D. Wang, Z. H. Chen   +5 more
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Rice Endophytic Diazotrophic Bacteria

2010
The extension of nitrogen-fixing symbioses to cultivated rice has been a long-standing goal in the field of biological nitrogen fixation. Endophytic bacteria have been found in virtually every plant studied, where they colonize the internal tissues of their host plant and do not cause any harmful effect to their host plant.
Janpen Prakamhang, Nantakorn Boonkerd, Neung Teaumroong   +2 more
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Impact of selected phyllospheric diazotrophs on the growth of wheat seedlings and assay of the growth substances produced by the diazotrophs

Microbiological Research, 1995
Abstract The impact of two phyllospheric diazotrophs, Azotobacter chroococcum (REN)2 and Azomonas macrocytogenes (JN2) on the growth of wheat seedlings were studied in laboratory conditions. Cultures of different incubation periods and different dilutions were tested for the best effect.
B.R. Pati, S. Sengupta, A.K. Chandra
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Oxygen and the Physiology of Diazotrophic Microorganisms

1984
This synthesis paper discusses some aspects of O2-related problems using representative examples from recent literature seen by the author up to June 1983. A large proportion of diazotrophic microorganisms require O2 as the terminal electron acceptor for energetic pathways; these are the most energetically efficient.
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Interactions Between Diazotrophs and Grasses

1997
Molecular phylogenetic studies based on comparative sequence analysis of genes or protein sequences has gained increasing importance in understanding evolutionary relationships of organisms. Moreover, these techniques allowed an insight in development of intimate interactions between organisms in some cases.
Barabara Reinhold-Hurek, Thomas Hurek
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