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Abstract

A Gram-stain-negative, non-spore-forming, non-flagellated and coccoid, ovoid or rod-shaped bacterial strain, HDSW-34, was isolated from seawater of Hwang-do on the Yellow Sea, South Korea, and subjected to a taxonomic study using a polyphasic approach. Strain HDSW-34 grew optimally at 30 °C, at pH 7.0–8.0 and in the presence of 1.0–2.0 % (w/v) NaCl. Neighbour-joining, maximum-likelihood and maximum-parsimony phylogenetic trees based on 16S rRNA gene sequences revealed that strain HDSW-34clustered with the type strains of four species of the genus , showing 96.7–97.6 % sequence similarity. Strain HDSW-34 contained Q-10 as the predominant ubiquinone and C 7 as the major fatty acid. The major polar lipids detected in strain HDSW-34 were phosphatidylcholine, phosphatidylglycerol, one unidentified aminolipid and one unidentified lipid. The DNA G+C content of strain HDSW-34 was 62.0 mol% and its DNA–DNA relatedness values with CIP 106731 and DSM 13978 were 11–18 %. The differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain HDSW-34 is separated from other recognized species of the genus . On the basis of the data presented, strain HDSW-34 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is HDSW-34 (= KCTC 52250=NBRC 112296).

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2016-10-01
2020-09-23
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