1887

Abstract

A Gram-stain-negative, non-motile, aerobic and coccoid, ovoid or rod-shaped bacterial strain, designated DB-4, was isolated from a tidal flat of the Yellow Sea, South Korea. Strain DB-4 grew optimally at 30 °C, at pH 7.0–8.0 and in the presence of approximately 1.0–2.0 % (w/v) NaCl. Phylogenetic trees based on 16S rRNA gene sequences revealed that strain DB-4 clustered with the type strain of , showing sequence similarity of 94.8 %. It exhibited sequence similarity values of 95.6–96.1 % to the type strains of and . Strain DB-4 contained Q-10 as the predominant ubiquinone and C 7 and cyclo C 8 as the major fatty acids. The major polar lipids of strain DB-4 were phosphatidylcholine, phosphatidylglycerol and one unidentified aminolipid. The fatty acid and polar lipid profiles of strain DB-4 were distinguished from those of the type strains of and some phylogenetically related species. The DNA G+C content of strain DB-4 was 69.2 mol%. On the basis of the phylogenetic, chemotaxonomic and other phenotypic properties, strain DB-4 is considered to represent a novel species of a new genus within the family , for which the name gen. nov., sp. nov. is proposed. The type strain of is DB-4 (=KCTC 52038=CECT 9025).

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2016-06-10
2020-01-21
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