1887

Abstract

A Gram-stain-negative, aerobic, non-spore-forming, non-flagellated and coccoid, ovoid or rod-shaped bacterial strain, designated AH-M8, was isolated from a tidal flat sediment collected from Aphae Island in the south-western sea, South Korea. Strain AH-M8 grew optimally at 35 °C, at pH 7.0–8.0 and in the presence of 2.0–3.0  % (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences revealed that strain AH-M8 belonged to the genus , clustering with the type strain of , with which it shared 99.0 % 16S rRNA gene sequence similarity. Sequence similarities to the type strains of other species of the genus were 95.4–96.0  %. Strain AH-M8 contained Q-10 as the predominant ubiquinone and Cω7, summed feature 3 (Cω7 and/or Cω6) and C as the major fatty acids. The major polar lipids of strain AH-M8 were phosphatidylglycerol, phosphatidylethanolamine, sphingoglycolipid and one unidentified glycolipid. The major polyamine is triamine -homospermidine. The DNA G+C content of strain AH-M8 was 66.7 mol% and its mean DNA–DNA relatedness value with JCM 18551 was 21  %. The differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain AH-M8 is separated from other species of the genus . On the basis of the data presented, strain AH-M8 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is AH-M8 ( = KCTC 42286 = NBRC 110678).

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2015-08-01
2020-01-19
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