Mesoflavibacter sabulilitoris sp. nov., isolated from seashore sand.

A Gram-stain-negative, aerobic, non-spore-forming, non-flagellated, gliding and rod-shaped bacterial strain, designated GJMS-9(T), was isolated from seashore sand collected at Geoje island in the South Sea, South Korea. Strain GJMS-9(T) grew optimally at 30 °C, at pH 7.0-8.0 and in the presence of 2.0% (w/v) NaCl. Phylogenetic trees based on 16S rRNA gene sequences revealed that strain GJMS-9(T) clustered with the type strain of Mesoflavibacter zeaxanthinifaciens, showing the highest sequence similarity of 99.1%. Strain GJMS-9(T) exhibited 16S rRNA gene sequence similarity of 96.5% to the type strain of Mesoflavibacter aestuarii and of less than 96.1% to the type strains of other recognized species. Strain GJMS-9(T) contained MK-6 as the only menaquinone and iso-C(15:1) G, iso-C(16:0) 3-OH, iso-C(15:0) and iso-C(17:0) 3-OH as the major fatty acids. The polar lipid profile of strain GJMS-9(T) containing phosphatidylethanolamine, one unidentified lipid and one unidentified glycolipid as major components was similar to that of the type strain of M. zeaxanthinifaciens. The DNA G+C content of strain GJMS-9(T) was 32.2 mol% and its DNA-DNA relatedness with M. zeaxanthinifaciens DSM 18436(T) was 38 ± 6.1%. The differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain GJMS-9(T) is separated from other species of the genus Mesoflavibacter. On the basis of the data presented, strain GJMS-9(T) is considered to represent a novel species of the genus Mesoflavibacter, for which the name Mesoflavibacter sabulilitoris sp. nov. is proposed. The type strain is GJMS-9(T) ( =KCTC 42117(T) =CECT 8597(T)).