1887

Abstract

A Gram-stain-negative, heterotrophic, facultative anaerobic, gliding and motile bacterium, approximately 0.6–0.9 µm wide and 1.5–2.6 µm long, designated F3105, was isolated from a marine sediment sample collected along the coast of Rongcheng, China . The growth of strain F3105 occurred on media with 1.0–8.0 % (w/v) NaCl (optimum, 2.0–3.0 %) and a pH of 6.5–9.5 (optimum, pH 7.5) at 4–45 °C (optimum, 37 °C). The phylogenetic analysis of the 16S rRNA gene and chemotaxonomic data revealed that the isolate belonged to the genus Aliidiomarina , and is closely related to Aliidiomarina shirensis (95.9 % sequence similarity). The sole isoprenoid quinone was Q-8. The major cellular fatty acids of the isolate were iso-C15 : 0, iso-C17 : 1ω9c and iso-C17 : 0, and its polar lipids consisted of phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, aminolipid, two unidentified lipids and two unidentified aminophospholipids. The DNA G+C content of strain F3105 was 49.5 mol%. On the basis of phenotypic distinctiveness and phylogenetic divergence, strain F3105 is considered to represent a novel species of the genus Aliidiomarina , for which the name Aliidiomarina celeris sp. nov. is proposed. The type strain is F3105 (=MCCC 1H00223=KCTC 52891).

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2018-11-20
2019-12-07
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