A Gram-staining-negative, yellow-pigmented, strictly aerobic bacterium, designated strain SC17T, was isolated from sediment of a tidal flat of Suncheon bay in South Korea. Cells were halotolerant, catalase- and oxidase-positive and non-motile rods. Growth of strain SC17T was observed at 5-40 °C (optimum, 25-30 °C), at pH 6.0-8.5 (optimum, pH 7.0) and in the presence of 1-8% (w/v) NaCl (optimum, 1-2%). The major cellular fatty acids were iso-C15: 0, summed feature 3 (comprising C16: 1ω7c and/or C16: 1ω6c and/or iso-C15: 0 2-OH), iso-C17: 0 3-OH, iso-C15: 1 G and anteiso-C15: 0. The polar lipid content consisted of phosphatidylethanolamine and unidentified amino lipids and lipids. The G+C content of the genomic DNA was 46.4 mol% and the only respiratory quinone detected was menaquinone-6 (MK-6). Phylogenetic inference based on 16S rRNA gene sequences showed that strain SC17T formed a distinct phyletic lineage within the family Flavobacteriaceae and was most closely related to members of the genera Gaetbulibacter and Tamlana with 95.0-95.8% sequence similarity. On the basis of phenotypic and molecular features, strain SC17T represents a novel genus of the family Flavobacteriaceae, for which the name Aestuariibaculum suncheonense gen. nov., sp. nov. is proposed. The type strain is SC17T (5KACC 16186T5JCM 17789T). Emended descriptions of the genera Gaetbulibacter and Tamlana are also proposed.
|Number of pages||7|
|Journal||International Journal of Systematic and Evolutionary Microbiology|
|Publication status||Published - 2013|
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics