Differentiating Indigenous Soybean Bradyrhizobium and Rhizobium spp. of Indian Soils.

摘要: Soybean is extensively cultivated worldwide and the largest source of biologically fixed nitrogen among legumes. It nodulated by both slow fast growing rhizobia. Indigenous soybean rhizobia in Vertisols central India were assessed for utilization 35 carbon sources intrinsic resistance to 19 antibiotics. There was greater trehalose raffinose growers (87 73 % vs. 30 % growers); but had higher ability utilize glucosamine (75 % 33 % growers). A larger proportion resistant vancomycin, polymyxin-B rifampicin (70, 65 55 %) compared (13, 7 7 % each). Among two 16S rRNA sequence types growers, those belonging Bradyrhizobium spp. utilized while Rhizobium radiobacter did not. All homology R. majority could not glucosamine. suggested that during initial isolations screening strain selection programmes, using like antibiotics media may provide a simple way distinguishing strains from growers.