1887

Abstract

A Gram-negative, non-spore-forming, non-flagellated, coccoid-, oval- or rod-shaped strain, designated M-M23, was isolated from seashore sediment at Geoje island, South Korea. Strain M-M23 grew optimally at 25 °C, at pH 7.0–8.0 and in the presence of 2 % (w/v) NaCl. Phylogenetic trees based on 16S rRNA gene sequences revealed that strain M-M23 clustered with the type strains of the two species of the genus , with which it exhibited 97.6–98.1 % 16S rRNA gene sequence similarity. Sequence similarity with the type strains of other recognized species was <90.8 %. Strain M-M23 contained Q-10 as the predominant ubiquinone and Cω7 and C as the major fatty acids. The major polar lipids of strain M-M23 were phosphatidylglycerol and two unidentified lipids. The DNA G+C content of strain M-M23 was 45.4 mol%. DNA–DNA relatedness between the isolate and DSM 5838 and JCM 14974 was 22±7.2 and 14±5.6 %, respectively. The differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain M-M23 is separate from the other described members of the genus . On the basis of the data presented, strain M-M23 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is M-M23 ( = KCTC 32081  = CCUG 62793). An emended description of the genus is also provided.

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2013-05-01
2019-10-17
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