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Phytohormones and induction of plant-stress tolerance and defense genes by seed and foliar inoculation with Azospirillum brasilense cells and metabolites promote maize growth
Azospirillum spp. are plant-growth-promoting bacteria used worldwide as inoculants for a variety of crops. Among the beneficial mechanisms associated with Azospirillum inoculation, emphasis has beenExpand
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NopM and NopD are rhizobial nodulation outer proteins: identification using LC-MALDI and LC-ESI with a monolithic capillary column.
We have explored the potential of commercial polystyrene-divinylbenzene monolithic capillary nanoLC-MS/MS for identifying Sinorhizobium fredii HH103 nodulation outer proteins. Monolithic nanoLC withExpand
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Genomic basis of broad host range and environmental adaptability of Rhizobium tropici CIAT 899 and Rhizobium sp. PRF 81 which are used in inoculants for common bean (Phaseolus vulgaris L.)
BackgroundRhizobium tropici CIAT 899 and Rhizobium sp. PRF 81 are α-Proteobacteria that establish nitrogen-fixing symbioses with a range of legume hosts. These strains are broadly used in commercialExpand
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Soils of the Chinese Hubei province show a very high diversity of Sinorhizobium fredii strains.
Biodiversity studies of native soybean-nodulating rhizobia in soils from the Chinese Hubei province (Honghu county; pH 8, alluvial soil) have been carried out. Inoculation of an American (Williams)Expand
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Experimental conditions may affect reproducibility of the β-galactosidase assay
Several experimental conditions and parameters contributing to the determination of β-galactosidase activity, as proposed in Miller's assay, were studied. Use of the absorbance correction factor andExpand
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A purL mutant of Sinorhizobium fredii HH103 is symbiotically defective and altered in its lipopolysaccharide.
The pleiotropic phenotype of an auxotrophic purL mutant (SVQ295) of Sinorhizobium fredii HH103 has been investigated. SVQ295 forms colonies that are translucent, produce more slime and absorb lessExpand
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Inactivation of the Sinorhizobium fredii HH103 rhcJ gene abolishes nodulation outer proteins (Nops) secretion and decreases the symbiotic capacity with soybean.
It has been postulated that nodulation outer proteins (Nops) avoid effective nodulation of Sinorhizobium fredii USDA257 to nodulate with American soybeans. S. fredii HH103 naturally nodulates withExpand
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Sinorhizobium fredii HH103 mutants affected in capsular polysaccharide (KPS) are impaired for nodulation with soybean and Cajanus cajan.
The Sinorhizobium fredii HH103 rkp-1 region, which is involved in capsular polysaccharides (KPS) production, was isolated and sequenced. The organization of the S. fredii genes identified, rkpUAGHIJExpand
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NolR regulates diverse symbiotic signals of Sinorhizobium fredii HH103.
We have investigated in Sinorhizobium fredii HH103-1 (=HH103 Str(r)) the influence of the nolR gene on the production of three different bacterial symbiotic signals: Nod factors, signal responsiveExpand
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Effect of pH and soybean cultivars on the quantitative analyses of soybean rhizobia populations.
Quantitative analyses of fast- and slow-growing soybean rhizobia populations in soils of four different provinces of China (Hubei, Shan Dong, Henan, and Xinjiang) have been carried out using the mostExpand
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