1887

Abstract

A mesophilic bacterium, strain 15-52, was isolated from the rhizosphere of Chinese cabbage (). On the basis of phenotypic and genotypic characteristics, the bacterium was identified as representing a novel species belonging to the genus . The strain is non-flagellated, non-spore-forming and grows at temperatures in the range 1–37 °C. Physiological tests of the strain showed the presence of oxidase, catalase, protease (gelatin and casein hydrolysis), -glucosidase and -galactosidase activities. The highest levels of 16S rRNA gene sequence similarity were found with respect to CL-GP80 (97.3 %) and DS-27 (97.2 %). A phylogenetic analysis based on 16S rRNA gene sequence data indicated that strain 15-52 is a member of the genus . DNA–DNA hybridization analysis revealed low levels of relatedness (<42.3 %) between the isolate and two phylogenetically related type strains, KCCM 42272 and KCTC 12559. The DNA G+C content is 44.2 mol% and the predominant fatty acids are iso-C (35.4 %), iso-C 2-OH and/or C 7 (27.8 %) and iso-C 3-OH (15.8 %). On the basis of these data, strain 15-52 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is 15-52 (=KACC 11317=DSM 18130).

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2007-03-01
2021-04-20
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