1887

Abstract

A Gram-stain-negative, non-motile bacterial strain, designated SW125, was isolated from a deep-sea vsediment sample collected from the Indian Ocean. Cells were aerobic, catalase-positive and oxidase-positive. The strain grew at 4–42 °C (optimum, 30 °C), at pH 5.0–10.0 (optimum, pH 7.0–7.6) and in the presence of 0.5–9.0 % (w/v) NaCl (optimum, 2.0–3.0 %). Comparative analyses of the 16S rRNA gene sequence showed that strain SW125 was grouped in the vicinity of the genus with the highest sequence similarity of 91.6 % to the type strain of . The quinone system contained menaquinone MK-7 as the predominant component. The predominant cellular fatty acids of strain SW125 were iso-C, iso-C 3-OH and summed feature 3 (comprising Cω7 and/or Cω6). Strain SW125 contained phosphatidylethanolamine as the major polar lipid. The genomic DNA G+C content of strain SW125 was 43.2 mol%. On the basis of its phenotypic characteristics and phylogenetic data, strain SW125 represents a novel species of a new genus, for which the name gen. nov., sp. nov. is proposed. The type strain is SW125 (=CGMCC 1.16172=DSM 107180=KCTC 62636).

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2019-12-01
2024-11-02
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