1887

Abstract

A Gram-stain-negative and strictly aerobic, moderately halophilic bacterium, designated strain S1-47, was isolated from estuary sediment in South Korea. Cells were non-motile rods showing oxidase- and catalase-positive activities. Growth was observed at 10–30 °C (optimum, 25 °C), at pH 5.0–8.0 (optimum, pH 6.0–7.0) and in the presence of 0–6.0 % (w/v) NaCl (optimum, 2.0 %). Strain S1-47 contained summed feature 3 (comprising Cω7 and/or Cω6), summed feature 8 (comprising Cω7 and/or Cω6) and C as major cellular fatty acids and ubiquinone-10 as the sole isoprenoid quinone. Phosphatidylethanolamine, an unidentified aminolipid, an unidentified phospholipid and three unidentified lipids were detected as polar lipids. The G+C content of the genomic DNA was 69.3 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain S1-47 formed a tight phylogenetic lineage with N9. Strain S1-47 was most closely related to N9 with a 99.4 % 16S rRNA gene sequence similarity. DNA–DNA relatedness levels between strain S1-47 and the type strain of were 49.8–52.2 %. Based on the phenotypic, chemotaxonomic and molecular features, strain S1-47 clearly represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is S1-47 (=KACC 18804=JCM 31536).

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2018-01-01
2020-02-26
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