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Abstract

A novel Gram-stain-negative, rod-shaped, non-spore-forming, aerobic, agarolytic bacterium, designated 017, was isolated from collected at the coast of Lingshui county, Hainan province, China. Optimal growth occurred at 28–33 °C (range 15–40 °C), with 3 % (w/v) NaCl (range 2–4 %) and at pH 8.0 (range pH 6.5–8.5). Cells of strain 017 were motile and formed yellow colonies on marine agar 2216. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain 017 shared the highest similarity with T7902 (94.4 %). The predominant polar lipids of the novel isolate consisted of phosphatidylglycerol, phosphatidylethanolamine, aminophospholipid and some other unknown lipids. Major cellular fatty acids (>10 %) were C, Cω7 and summed feature 3 (Cω7/iso-C 2-OH), and the sole respiratory lipoquinone was Q-8. The DNA G+C content of strain 017 was 40.2 mol%. Comparative analysis of 16S rRNA gene sequences and phenotypic characterization indicated that strain 017 represents a novel species in a new genus of the family , order , for which the name gen. nov., sp. nov. is proposed. The type strain of is 017 (=KCTC 42584=MCCC 1H00123).

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2017-10-01
2020-12-03
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