1887

Abstract

A Gram-stain-negative, aerobic, non-motile and coccoid, ovoid or rod-shaped bacterial strain, designated GYSW-23, was isolated from seawater off Geoje island in the South Sea, South Korea. Strain GYSW-23 grew optimally at 25 °C, at pH 7.0–8.0 and in the presence of approximately 2.0–3.0   % (w/v) NaCl. Phylogenetic trees based on 16S rRNA gene sequences revealed that strain GYSW-23 forms a distinct evolutionary lineage independent of other taxa of the family . It exhibited 16S rRNA gene sequence similarity values of 94.0, 93.5, 93.4 and 93.4 % to the type strains of , , and , respectively, and 93.6 % to ‘’ 22II-S11-z10. Strain GYSW-23 contained Q-10 as the predominant ubiquinone and Cω7 as the major fatty acid. The major polar lipids of strain GYSW-23 were phosphatidylcholine, phosphatidylglycerol and one unidentified aminolipid. The fatty acid and polar lipid profiles of strain GYSW-23 were distinguishable from those of the phylogenetically related taxa. The DNA G+C content of strain GYSW-23 was 60.6 mol%. On the basis of the phylogenetic, chemotaxonomic and other phenotypic properties, strain GYSW-23 is considered to represent a novel species of a new genus in the family , for which the name gen. nov., sp. nov. is proposed. The type strain of is GYSW-23 ( = KCTC 42458 = CECT 8812).

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2015-09-01
2020-09-25
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