Mesorhizobium caraganae sp nov., a novel rhizobial species nodulated with Caragana spp. in China

文献类型: 外文期刊

第一作者: Guan, Su Hua

作者: Guan, Su Hua;Chen, Wen Feng;Lu, Yang Li;Chen, Wen Xin;Wang, En Tao;Yan, Xue Rui;Zhang, Xiao Xia

作者机构:

期刊名称:INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY ( 影响因子:2.747; 五年影响因子:2.889 )

ISSN: 1466-5026

年卷期: 2008 年 58 卷

页码:

收录情况: SCI

摘要: Five rhizobial strains representing the largest group in the genus Mesorhizobium associated with Caragana spp. in China were characterized taxonomically. Phylogenetic analysis based on 16S rRNA gene sequences indicated that these microsymbionts belonged to the genus Mesorhizobium, with Mesorbizobium tianshanense USDA 3592(T), Mesorhizobium temperatum SDW018(T) and Mesorhizobium mediterraneum UPM-Ca36(T) as the closest neighbours; (>= 99.5 % 16S rRNA gene sequence similarity). Genotypic fingerprinting by whole-cell protein electrophoresis, DNA-DNA hybridization, comparative housekeeping sequence analysis of the atpD, glnll and recA genes, fatty acid profiles and a series of phenotypic and physiological tests allowed the novel group to be differentiated from all previously recognized species of the genus Mesorhizobium. This group therefore represents a novel species, for which the name Mesorhizobium caraganae sp. nov. is proposed with the type strain CCBAU 11299(T) (=LMG 24397(T) = HAMBI 2990(T)). Cross-inoculation tests showed that strain CCBAU 11299(T) could form effective nodules on Caragana microphylla, Caragana intermedia, Glycyrrhiza uralensis, Astragalus adsurgens and Phaseolus vulgaris.

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