1887

Abstract

Strain F3212, Gram-stain-negative, aerobic, helical and motile bacterium, was isolated from the marine sediment collected in a sea cucumber culture pond located in Rongcheng, China. Strain F3212 grew optimally at pH 8.5, at 30 °C and in the presence of 3.0 % (w/v) NaCl. Phylogenetic analysis, based on 16S rRNA gene sequences, indicated that strain F3212 belongs to the genus , clustering with , , , and (with 96.4, 94.6, 93.1, 92.4 and 92.1 % 16S rRNA gene sequence similarities, respectively). The chemotaxonomic properties of strain F3212 were similar to those of members of the genus . Q-8 was the sole respiratory ubiquinone and the genomic DNA G+C content was 53.3 mol%. The major fatty acids were C 9, C and C. The polar lipid pattern consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, an unidentifed lipid and an unidentified aminophospholipid. The average nucleotide identity scores for strains DSM 18438 and DSM 6287 were 74.5 and 69.4 %, respectively. The DNA–DNA homologies with DSM 18438 and DSM 6287 were less than 20 %. It’s concluded that strain F3212 represents a new species of the genus for which the name sp. nov. is proposed. The type strain is F3212 (=KCTC 52892=MCCC 1H00198).

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2019-10-15
2019-11-21
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