1887

Abstract

A moderately halophilic, slightly acidophilic, aerobic bacterium, designated strain YTM-1, was isolated from the body surface of . Cells were Gram-stain-negative, short rods or cocci, approximately 0.9–1.1 µm long and 1.0–1.8 µm wide. Strain YTM-1 was able to grow with 1–30 % NaCl (optimum, 7.5–10 %, w/v), at 4–30 °C (optimum, 20–25 °C) and at pH 3.8–9.5 (optimum, pH 5.0–5.5). Phylogenetic analysis based on 16S rRNA gene sequence similarities showed that strain YTM-1 belonged to the genus with low similarity values to the type strains of recognized species of this genus (<94.8–94.4 %). The polar lipids of strain YTM-1 consisted of diphosphatidylglycerol, phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylserine, three unknown phospholipids and one unknown lipid. The predominant isoprenoid quinone was Q-8. The major fatty acids were Cω8 cyclo, Cω7, Cω5 and C. The DNA G+C content of strain YTM-1 was 67.3 mol%. These phylogenetic, physiological and chemotaxonomic data indicated that strain YTM-1 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is YTM-1 ( = JCM 18087 = CECT 8012). An emended description of the genus is also proposed.

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2013-06-01
2019-10-17
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