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

A Gram-negative, yellow-coloured, chemoheterotrophic, non-motile, strictly aerobic, rod-shaped T 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 degrees 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 T 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.