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Abstract

A Gram-stain-negative, aerobic, non-spore-forming, non-flagellated and coccoid, ovoid or rod-shaped bacterial strain, W-BA2, was isolated from a brown algae reservoir in Wando of South Korea. Strain W-BA2 grew optimally at 25 °C, at pH 7.0–8.0 and in the presence of approximately 2.0–3.0 % (w/v) NaCl. Phylogenetic trees based on 16S rRNA gene sequences revealed that strain W-BA2 fell within the clade comprising the type strains of species of the genus , clustering coherently with the type strains of and showing sequence similarity values of 98.0–98.1 %. Sequence similarities to the type strains of the other species of the genus were 96.0–97.4 %. Strain W-BA2 contained Q-10 as the predominant ubiquinone and Cω7 as the major fatty acid. The major polar lipids of strain W-BA2 were phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine, one unidentified aminolipid and one unidentified lipid. The DNA G+C content of strain W-BA2 was 55.0 mol% and its DNA–DNA relatedness values with the type strains of , and were 16–23 %. The differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain W-BA2 is separated from other species of the genus . On the basis of the data presented, strain W-BA2 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is W-BA2 ( = KCTC 42200 = NBRC 110523).

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2015-05-01
2020-01-29
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