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Abstract

A Gram-negative, non-motile, ovoid to rod-shaped bacterium, designated strain HWDM-33, was isolated from seawater of the Yellow Sea, Korea, and was subjected to a polyphasic taxonomic study. Strain HWDM-33 grew optimally at pH 7–8, at 25 °C and in the presence of 2–3 % (w/v) NaCl. Neighbour-joining, maximum-likelihood and maximum-parsimony phylogenetic trees based on 16S rRNA gene sequences showed that strain HWDM-33 clustered with K7-2, with which it shared 96.9 % sequence similarity. Strain HWDM-33 exhibited 94.2–95.8 % 16S rRNA gene sequence similarity to the type strains of other recognized species of the genus . Strain HWDM-33 contained Q-10 as the predominant ubiquinone and Cω7, Cω6, and Cω7 and/or iso-C 2-OH as the major fatty acids. The major polar lipids were sphingoglycolipid, phosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine and an unidentified lipid. The DNA G+C content of strain HWDM-33 was 66.1 mol%. Differential phenotypic properties and phylogenetic distinctiveness demonstrated that strain HWDM-33 was separate from and other recognized species of the genus . On the basis of the data presented here, strain HWDM-33 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is HWDM-33 ( = KCTC 23554  = CCUG 60528).

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2012-09-01
2020-01-25
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