Idiomarina seosinensis sp nov., isolated from hypersaline water of a solar saltern in Korea

A halophilic gamma-proteobacterium, designated CL-SP19(T), was isolated from hypersaline water from a solar saltern located in Seosin, Korea. Analysis of the 16S rRNA gene sequence revealed an affiliation with the genus Idiomarina. The sequence similarities between CL-SP19(T) and type strains of the genus Idiomarina ranged from 95.9 to 96.9 %. Cells were straight or slightly curved rods and were motile by means of a single polar flagellum. The major fatty acids were C-15:0 iso (17.1 %) and C-17:0 iso (15.2 %). Three fatty acids, C-19:0 omega8c cyclo (3.5 %), C(14:1)omega5c (1.4 %) and C(18:3)omega6c (1.2 %), were found in minor quantities, but uniquely in CL-SP19(T) among Idiomarina species. The DNA G+C content was 45.0 mol%. On the basis of its physiology, fatty acid composition and 16S rRNA gene sequence, strain CL-SP19(T) could be assigned to the genus Idiomarina but distinguished from the recognized species of the genus. Strain CL-SP19(T), therefore, represents a novel species, for which the name Idiomarina seosinensis sp. nov. is proposed, with CL-SP19(T) (=KCTC 12296(T)=JCM 12526(T)) as the type strain.