BRADYRHIZOBIUM LIAONINGENSE SP-NOV, ISOLATED FROM THE ROOT-NODULES OF SOYBEANS

文献类型: 外文期刊

第一作者: XU, LM

作者: XU, LM;GE, C;CUI, Z;LI, J;FAN, H

作者机构: CHINESE ACAD AGR SCI,INST SOILS & FERTILIZERS,BEIJING 100081,PEOPLES R CHINA

期刊名称:INTERNATIONAL JOURNAL OF SYSTEMATIC BACTERIOLOGY ( 2001影响因子:3.558; )

ISSN: 0020-7713

年卷期: 1995 年 45 卷 4 期

页码:

收录情况: SCI

摘要: Seventeen strains of extra-slowly growing (ESG) soybean rhizobia isolated from root nodules of Glycine soja and Glycine mar growing in five provinces (Liaoning, Heilongjiang, Shanxi, Hubei, and Anhui) in the People's Republic of China were compared with 48 reference strains belonging to the genera Bradyrhizobium, Rhizobium, and Agrobacterium by performing a numerical analysis of 191 phenotypic features. Our results showed that all of the ESG strains examined clustered closely in the genus Bradyrhizobium but were separated from Bradyrhizobium japonicum at the species level and that they could be differentiated from Rhizobium and Agrobacterium species at the genus level. On the basis of the results of our numerical taxonomy analysis, a genomic DNA G+C content analysis, DNA-DNA hybridization experiments, a partial 16S rRNA sequence analysis, a serological analysis, an N and C content analysis, and an N/C ratio analysis of members of the three groups of soybean rhizobia, we propose the name Bradyrhizobium liaoningense sp. nov. for the ESG strains; the type strain of this species is strain 2281.

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