1887

Abstract

A novel species of the genus , represented by strain S2-21, was isolated from an estuary of Asan in South Korea. Cells of strain S2-21 were Gram-stain-negative, aerobic, non-motile rods that were oxidase- and catalase-positive. Growth of strain S2-21 was observed at 15–40 °C (optimum, 25–30 °C), at pH 7.0–8.0 (optimum, pH 7.0) and in the presence of 0–2.0 % (w/v) NaCl (optimum, 0 %). The major cellular fatty acids were iso-C, C 3-OH, iso-C, summed feature 9 (comprising iso-Cω9 and/or C 10-methyl), anteiso-C and iso-C. The only respiratory quinone detected was ubiquinone-8 (Q-8) and the major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylmethylethanol and two unknown phospholipids. The G+C content of the genomic DNA was 62.2 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain S2-21 formed a tight phyletic lineage with HO3-R19 within the genus . Strain S2-21 was related most closely to HO3-R19 at 98.1 % 16S rRNA gene sequence similarity and the mean DNA–DNA relatedness value between strain S2-21 and the type strain of was 23.6 ± 2.2 %. On the basis of phenotypic, chemotaxonomic and molecular features, strain S2-21 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is S2-21 ( = KACC 18504 = JCM 31129).

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2016-03-01
2020-04-09
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