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Gaetbulibacter marinus sp. nov., isolated from coastal seawater, and emended description of the genus Gaetbulibacter

Division of Biology and Ocean Sciences, Inha University, Yonghyun-Dong, Incheon 402-751, Republic of Korea

Correspondence
Jang-Cheon Cho
chojc{at}inha.ac.kr

A Gram-negative, yellow-coloured, chemoheterotrophic, non-motile, strictly aerobic, rod-shaped bacterium, designated IMCC1914^T, was isolated from coastal surface seawater of the Yellow Sea, Korea. The temperature, pH and NaCl ranges for growth were 3–37 °C, pH 8.0–11.0 and 0.5–4.0 %. The DNA G+C content of the strain was 38.1 mol% and the major cellular fatty acids were iso-C_{15 : 1} (32.1 %), iso-C_{15 : 0} (20.6 %) and iso-C_{17 : 0} 3-OH (7.8 %). Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain IMCC1914^T was related most closely to Gaetbulibacter saemankumensis SMK-12^T, with a sequence similarity of 96.2 %. On the basis of phylogenetic data and several distinct phenotypic characteristics, strain IMCC1914^T (=KCCM 42380^T =NBRC 102040^T) could be assigned to the genus Gaetbulibacter as the type strain of a novel species, for which the name Gaetbulibacter marinus sp. nov. is proposed. In addition, an emended description of the genus Gaetbulibacter is presented.