1887

Abstract

A novel Gram-negative, obligately aerobic, non-motile, rod-shaped bacterium, strain M97, was isolated from marine sediment of a cage-cultured ark clam farm on the south coast of Korea. Strain M97 was positive for oxidase and catalase. Optimal growth occurred at 37 °C, with 1–2 % (w/v) NaCl and at pH 7–8. The main cellular fatty acids were C, Cω7, C 3-OH and cyclo-Cω8. The polar lipids comprised diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, an unknown aminolipid and three unknown lipids. The predominant respiratory quinone was ubiquinone-10 (Q-10). Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain M97 belongs to the genus , with highest sequence similarity to DPG-21 (99.0 %). The DNA G+C content of strain M97 was 68.5 mol%. Mean DNA–DNA relatedness between strain M97 and DPG-21 was 46±10 %. Based on phylogenetic, phenotypic and genotypic analyses, strain M97 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is M97 ( = KACC 15544 = JCM 17731).

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2012-10-01
2019-10-18
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