Alishewanella maricola sp. nov., isolated from seawater of the Yellow Sea

초록

A Gram-stain-negative and facultative aerobic bacterium, strain 16-MAT, was isolated from seawater of Yellow Sea in South Korea. Cells were catalase-and oxidase-positive and non-motile rods. Growth occurred at 4–37 °C (optimum, 30 °C) and pH 6.0–11.0 (optimum, 8.0), and in the presence of 0–7.0% NaCl (optimum, 3 %). Strain 16-MAT contained ubiquinone-8 as the sole isoprenoid quinone, C16: 0 and summed feature three as the major fatty acids (>10 %), and phosphatidylglycerol, phosphatidy-lethanolamine, an unidentified phospholipid, an unidentified aminophospholipid, and an unidentified polar lipid as the major polar lipids. The genome size and DNA G+C content of strain 16-MAT were 3.69 Mb and 46.0 mol%, respectively. Strain 16-MAT was most closely related to Alishewanella alkalitolerans LNK-7.1T with a 97.9 % 16S rRNA gene sequence similarity. A phylogenomic tree based on whole genome sequences showed that strain 16-MAT formed a phylogenetic lineage within the genus Alishewanella. Based on the phenotypic, chemotaxonomic, and molecular analyses, strain 16-MAT represents a novel species of the genus Alishewanella, for which the name Alishewanella maricola is proposed. The type strain is 16-MAT (=KACC 22238T =JCM 34596T). © 2023 The Authors.

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