1887

Abstract

A Gram-negative, aerobic, rod-shaped, motile -like bacterial strain, J22, was isolated from black sand collected from Soesoggak, Jeju Island, Korea. Growth of strain J22 was observed in R2A medium at temperatures between 10 and 42 °C (optimum 30 °C), between pH 6.5 and 10.5 (optimum pH 7.5) and at a NaCl concentration between 0 and 4 % (w/v) (optimum 0–1 %). Phylogenetic analysis based on 16S rRNA gene sequences showed that strain J22 belonged to the genus , with high sequence similarities of >97 % to the sequence of the type strains CB88, DS-18, CB17, TK0051, KSL-102, CB63, CB81 and CB7. Strain J22 exhibited DNA–DNA relatedness values of less than 22.2 % with the phylogenetically related species of the genus . The DNA G+C content of strain J22 was 66.3 mol%. The predominant cellular fatty acids were C 7, C and C 9; C 3-OH was present, which chemotaxonomically characterizes the members of the genus . Phylogenetic, genomic and biochemical characteristics served to differentiate this isolate from recognized members of the genus . Strain J22 (=KCTC 22177=JCM 15911) should be classified as a novel species in the genus , for which the name sp. nov. is proposed.

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2010-07-01
2019-10-16
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