1887

Abstract

A Gram-staining-negative, strictly aerobic bacterial strain, designated MA7-20, was isolated from a marine alga, , in Korea. Cells showing oxidase-positive and catalase-positive activities were motile rods with bipolar flagella. Growth of strain MA7-20 was observed at 15–45 °C (optimum, 30–37 °C), at pH 6.0–10.5 (optimum, pH 7.0–8.0) and in the presence of 0–7 % (w/v) NaCl (optimum, 2–3 %). Strain MA7-20 contained summed feature 8 (comprising Cω7/C ω6), 11-methyl Cω7 and C as the major fatty acids and ubiquinone-10 as the sole isoprenoid quinone. The major polar lipids were phosphatidylcholine, phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine and phosphatidyl--methylethanolamine. The G+C content of the genomic DNA was 61.5 mol%. Strain MA7-20 was most closely related to YC6898, CC-AMH-0 and J3 with 96.0, 95.8 and 95.8 % 16S rRNA gene sequence similarities, respectively, but the strain formed a distinct phylogenetic lineage from them within the family with a low bootstrap value. also formed a clearly distinct phylogenetic lineage from other members of the genus and closely related genera. On the basis of phenotypic, chemotaxonomic and molecular properties, strain MA7-20 represents a novel species of a new genus of the family , for which the name gen. nov., sp. nov. is proposed. The type strain is MA7-20 (=KACC 18807=JCM 31538). In addition, is also reclassified as gen. nov., comb. nov. (type strain YC6898=KACC 14911=NBRC 107700).

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2017-02-01
2019-12-15
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