Rhizobium soli sp. nov., isolated from soil

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Rhizobium soli sp. nov., isolated from soil
Jung-Hoon Yoon; So Jung Kang; Hwe Su Yi; Tae Kwang Oh; Choong-Min Ryu
Bibliographic Citation
International Journal of Systematic and Evolutionary Microbiology, vol. 60, no. 6, pp. 1387-1393
Publication Year
A Gram-negative, non-motile, pale-yellow, rod-shaped bacterial strain, DS-42T, was isolated from a soil in Korea and its taxonomic position was investigated by a polyphasic study. Strain DS-42T grew optimally at 25 °C and pH 7.0-8.0. Strain DS-42T did not form nodules on three different legumes, and the nodD and nifH genes were also not detected by PCR. Strain DS-42T contained Q-10 as the predominant ubiquinone. The major cellular fatty acid was C18:1ω7c. The DNA G+C content was 60.8 mol%. Phylogenetic analyses based on 16S rRNA, atpD and recA gene sequences showed that strain DS-42T belonged to the genus Rhizobium. Strain DS-42T showed 16S rRNA gene sequence similarity of 94.1-97.7% to the type strains of recognized Rhizobium species. DNA-DNA relatedness between strain DS-42T and the type strains of Rhizobium huautlense, R. galegae, R. loessense and R. cellulosilyticum was 13-19 %, indicating that strain DS-42T was distinct from them genetically. Strain DS-42 T can also be differentiated from these four phylogenetically related Rhizobium species by various phenotypic properties. On the basis of phenotypic properties, phylogenetic distinctiveness and genetic data, strain DS-42 T is considered to represent a novel species of the genus Rhizobium, for which the name Rhizobium soli sp. nov. is proposed. The type strain is DS-42T (=KCTC 12873T =JCM 14591T).
Microbiology Soc
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Division of Biomedical Research > Metabolic Regulation Research Center > 1. Journal Articles
Division of Research on National Challenges > Infectious Disease Research Center > 1. Journal Articles
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