1887

Abstract

A Gram-stain-negative, aerobic, rod-shaped, non-flagellated marine bacterium, designated strain LS-861, was isolated from seawater of the South China Sea (Taiwan). Strain LS-861 grew optimally at pH 7.0 and 30 °C in the presence of 3 % (w/v) NaCl. The novel strain shared highest 16S rRNA gene sequence similarity (91.5 % each) with ‘’ CGMCC 1.12519 and JG120-1 and lower sequence similarity ( < 91.5 %) with other species. Phylogenetic analyses based on 16S rRNA gene sequences revealed a distinct taxonomic position attained by strain LS-861 within the clade that accommodated members of the family . The major fatty acids were C, iso-Cω10, C 3-OH and Cω7/Cω6. The polar lipid profile was relatively simple as compared with other representatives of , by having major amounts of diphosphatidylglycerol, phosphatidylglycerol and an unidentified glycolipid, and moderate amounts of three unidentified phospholipids and an unidentified aminolipid. The DNA G+C content was 61.2 mol%. The predominant quinone system was ubiquinone-10 (Q-10). The data in general and phylogenetic and polar lipid data in particular clearly distinguish the novel strain from related species at the genus level. Thus, strain LS-861 is suggested to represent a novel species of a new genus of the family , for which the name gen. nov., sp. nov. is proposed. The type strain of is LS-861 ( = BCRC 80818 = JCM 30682).

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2015-11-01
2020-09-30
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