1887

Abstract

A Gram-stain-negative, aerobic, motile, rod-shaped bacterial strain, GSW-M6, was isolated from seawater of Geoje island, Korea, and was subjected to a polyphasic taxonomic study. Strain GSW-M6 grew optimally at pH 7.0–8.0, at 30 °C and in the presence of 2 % (w/v) NaCl. In the neighbour-joining phylogenetic tree based on 16S rRNA gene sequences, strain GSW-M6 clustered with , and Strain GSW-M6 exhibited 96.2–96.9 % 16S rRNA gene sequence similarity to the type strains of these three species. Strain GSW-M6 contained Q-10 as the predominant ubiquinone and Cω7 as the major fatty acid. The polar lipid profiles of strain GSW-M6 and the type strains of the three species were similar, with phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine and an unidentified lipid as common major components. The DNA G+C content of strain GSW-M6 was 57 mol%. The mean level of DNA–DNA relatedness between strain GSW-M6 and the type strain of was 17 %. Differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, enabled strain GSW-M6 to be differentiated from recognized species of the genus . On the basis of the data presented, strain GSW-M6 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is GSW-M6 ( = KCTC 23347  = CCUG 60021).

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2012-01-01
2019-10-16
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