1887

Abstract

A Gram-negative, non-motile and rod-shaped -like bacterial strain, DSW-18, was isolated from seawater of the East Sea, Korea, and its exact taxonomic position was investigated by using a polyphasic approach. Strain DSW-18 grew optimally at pH 7.0–8.0 and 25 °C in the presence of 2 % (w/v) NaCl. It contained Q-10 as the predominant ubiquinone and C 7 as the major fatty acid. The major polar lipids were phosphatidylcholine, phosphatidylglycerol and diphosphatidylglycerol. The DNA G+C content was 56.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain DSW-18 fell within the cluster comprising species. The levels of 16S rRNA gene sequence similarity between strain DSW-18 and the type strains of recognized species ranged from 94.4 to 98.4 %. The DNA–DNA relatedness data and differential phenotypic properties, together with the phylogenetic distinctiveness, demonstrated that strain DSW-18 was distinguishable from recognized species. On the basis of the phenotypic, phylogenetic and genetic data, strain DSW-18 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is DSW-18 (=KCTC 12863=JCM 14564).

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2007-08-01
2020-01-20
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