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Phylogenetic and genetic relationships of Mesorhizobium tianshanense and related rhizobia.
The phylogenetic analysis based on the 16S rRNA gene sequences showed that M. tianshanense was closely related to the Mesorhizobium phylogenetic branch and could be distinguished from the other four species in this branch, and confirmed that these bacteria constitute a distinct rhizobial species.
Effect of N-fertilization, plant genotype and environmental conditions on nifH gene pools in roots of rice.
A rapid change of the diazotrophic population structure within 15 days after application of nitrogen fertilizer and a strong effect of environmental conditions and plant genotype are found and this results clearly demonstrated that the T-RFLP method was suitable to reflect compositional differences in the d Diazotrophic community in a semiquantitative manner.
Rhizobium borbori sp. nov., aniline-degrading bacteria isolated from activated sludge.
Three aniline-degrading bacteria, strains DN316(T), DN316-1 and DN365, were isolated from activated sludge and represent a novel species of the genus Rhizobium, for which the name Rhuzobium borbori sp.
Mesorhizobium septentrionale sp. nov. and Mesorhizobium temperatum sp. nov., isolated from Astragalus adsurgens growing in the northern regions of China.
Host range studies indicate that the different nodA sequences correlate with different host ranges, and further comparative studies with the defined Agrobacterium species are needed to clarify the taxonomic identity of candidate species III.
Characterization of rhizobia isolated from legume species within the genera Astragalus and Lespedeza grown in the Loess Plateau of China and description of Rhizobium loessense sp. nov.
Phylogenetic analysis based on 16S rRNA gene sequences showed that CCBAU 7190B(T), representing cluster 2, was closely related to Rhizobium galegae and RhizOBium huautlense.
Enterobacter oryzae sp. nov., a nitrogen-fixing bacterium isolated from the wild rice species Oryza latifolia
Twelve facultatively anaerobic, endophytic diazotrophs were isolated from surface-sterilized roots of the wild rice species Oryza latifolia and characterized by phenotypic and molecular methods. Six
Azospirillum melinis sp. nov., a group of diazotrophs isolated from tropical molasses grass.
Fifteen bacterial strains isolated from molasses grass (Melinis minutiflora Beauv.) were identified as nitrogen-fixers by using the acetylene-reduction assay and PCR amplification of nifH gene
Rhizobium oryzae sp. nov., isolated from the wild rice Oryza alta.
Differences in IS-PCR fingerprinting patterns, SDS-PAGE of proteins, antibiotic resistance, phenotypic tests and comparison of cellular fatty acids with Rhizobium species indicated that the novel group of isolates were distinct from previously described species.
Rhizobium yanglingense sp. nov., isolated from arid and semi-arid regions in China.
Data indicated that cluster 9 was a unique genomic species, Rhizobium yanglingense, with isolate CCBAU 71623 as the type strain, and this group could also be differentiated from defined species by phenotypic characteristics.
Sinorhizobium meliloti associated with Medicago sativa and Melilotus spp. in arid saline soils in Xinjiang, China.
Of 42 rhizobial isolates from Medicago sativa and Melilotus spp. growing in arid saline fields in Xinjiang, China, 40 were identified as Sinorhizobium meliloti by a polyphasic approach. However,