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Abstract

A Gram-reaction-negative, aerobic, non-flagellated and coccoid, ovoid or rod-shaped bacterial strain, designated W-SW2, was isolated from seawater in the South Sea of South Korea. The novel strain grew optimally at pH 7.0–8.0, at 25 °C and in the presence of approximately 2 % (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences revealed that strain W-SW2 fell within the clade comprising the type strains of species of the genus , clustering and sharing the highest sequence similarity value (96.3 %) with the type strain of . The 16S rRNA gene sequence similarity values between strain W-SW2 and the type strains of the other species of the genus were in the range 93.1–96.0 %. The DNA G+C content of strain W-SW2 was 55.9 mol%. Strain W-SW2 contained Q-10 as the predominant ubiquinone and Cω7 as the predominant fatty acid. The major polar lipids were phosphatidylcholine, phosphatidylglycerol, one unidentified aminolipid and one unidentified lipid. Differential phenotypic properties, together with the phylogenetic distinctiveness, revealed that strain W-SW2 is separated phylogenetically from other species of the genus . On the basis of the data presented, strain W-SW2 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is W-SW2 ( = KCTC 42133 = NBRC 110409).

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2014-11-01
2019-11-17
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