1887

Abstract

A Gram-negative, non-motile, rod-shaped bacterial strain, designated DPG-5, was isolated from seawater of the South Sea, Korea and subjected to a study using a polyphasic taxonomic approach. Strain DPG-5 grew optimally at pH 7.0–8.0, at 30 °C and in the presence of 2 % (w/v) NaCl. Neighbour-joining phylogenetic analyses based on 16S rRNA gene sequences revealed that strain DPG-5 fell within the clade comprising members of the genus , and formed a cluster with the type strains of , , and , with which it exhibited highest 16S rRNA gene sequence similarity values of 96.7, 96.5, 96.2 and 96.7 %, respectively. The 16S rRNA gene sequence similarity values between strain DPG-5 and the type strains of the other species of the genus were in the range of 94.4–96.0 %. The DNA G+C content of strain DPG-5 was 57.6 mol%. Strain DPG-5 contained Q-10 as the predominant ubiquinone and Cω7 and 11-methyl Cω7 as the major fatty acids. The major polar lipids found in strain DPG-5 were phosphatidylcholine and phosphatidylglycerol. Differential phenotypic properties, together with the phylogenetic distinctiveness, showed that strain DPG-5 is differentiated from other species of the genus . On the basis of the data presented, strain DPG-5 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is DPG-5 ( = KCTC 23883 = CCUG 62113).

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2013-01-01
2019-12-15
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