1887

Abstract

A bacterial strain, designated WDS2C18, was isolated from a marine solar saltern from the coast of Weihai, Shandong Province, China. Cells of strain WDS2C18 were long rod-shaped, red, and approximately 6.0–12.0 µm in length and 0.3–0.4 µm in width. The strain was Gram-stain-negative, facultatively anaerobic, heterotrophic, catalase-positive and oxidase-negative. Optimal growth was observed at 40 °C, at pH 7.5–8.0 with 8–12 % (w/v) NaCl. Nitrate was not reduced. Glycerol, sucrose, starch and -mannitol stimulated growth, but not glucose, -fructose, -galactose, -lactose, maltose, -mannose, -xylose, -ribose, -arabinose, -rhamnose or cellobiose. The G+C content of the genomic DNA was 58.1 mol% (HPLC). The sole methyl naphthoquinone was MK-7 and the predominant cellular fatty acids (>10 %) were iso-C 2-OH/C 7, iso-C 9, iso-C and iso-C. The predominant polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, glycolipid, three unidentified phospholipids and two unidentified lipids. Phylogenetic analysis, based on 16S rRNA gene sequences, demonstrated that strain WDS2C18 was affiliated with the family . The closest related neighbours were species of the genera and; strain WDS2C18 shared highest 16S rRNA gene sequence similarities with DSM 21114 (91.7 %) and SYD6 (90.8 %) and less than 90.0 % to other species of the family . On the basis of these phenotypic and phylogenetic data, strain WDS2C18 should be classified as representing a novel species of a new genus within the family e, for which the name gen. nov., sp. nov. is proposed. The type strain of is WDS2C18 (=MCCC 1H00132=KCTC 52045).

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2016-09-01
2022-01-21
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