1887

Abstract

A Gram-stain-negative, non-motile and coccoid, ovoid or rod-shaped bacterial strain, designated P-MA1-7, was isolated from a sea squirt () collected from the South Sea, Korea. Strain P-MA1-7 grew optimally at 25 °C, at pH 7.0–8.0 and in the presence of 2–3 % (w/v) NaCl. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain P-MA1-7 fell within the cluster comprising the type strains of four species of the genus , exhibiting 16S rRNA gene sequence similarity values of 97.0–98.5 % to these four type strains and less than 95.9 % sequence similarity to the strains of the other species examined. Strain P-MA1-7 contained Q-10 as the predominant ubiquinone and Cω7 as the predominant fatty acid. The major polar lipids of strain P-MA1-7 were phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine, one unidentified aminolipid and one unidentified lipid. The DNA G+C content of strain P-MA1-7 was 58.3 mol% and DNA–DNA relatedness values of strain P-MA1-7 with the type strains of the four species of the genus were in the range of 8–21 %. The differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain P-MA1-7 was separate from other species of the genus . On the basis of these data, strain P-MA1-7 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is P-MA1-7 ( = KCTC 32213 = CCUG 63416).

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2013-09-01
2019-12-05
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