1887

Abstract

A Gram-stain-negative, strictly aerobic bacterium, designated strain GY12, was isolated from a tidal flat of South Korea. Cells were moderately halotolerant, catalase- and oxidase-positive rods with gliding motility, and were devoid of flagella. Growth of strain GY12 was observed at 15–40 °C (optimum 25–30 °C), pH 6.0–8.5 (optimum pH 7.0–7.5) and with 1–5 % (w/v) NaCl (optimum 1–2 %). The major cellular fatty acids were iso-C G, iso-C and iso-C 3-OH. The polar lipids consisted almost entirely of phosphatidylethanolamine, two unidentified aminolipids and two unidentified lipids. The G+C content of the genomic DNA was 34.8 mol% and the only respiratory quinone detected was menaquinone-6 (MK-6). Strain GY12 was most closely related to the genera , , and with 16S rRNA gene sequence similarities of 94–97 %, but phylogenetic inferences based on 16S rRNA gene sequences showed that the strain formed phyletic lineages distinct from these genera within the family . On the basis of phenotypic and molecular features, strain GY12 represents a novel species of a new genus in the family , for which the name gen. nov., sp. nov. is proposed. The type strain of the type species is GY12 ( = KACC 16441 = JCM 18325).

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2015-02-01
2020-01-25
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