Salegentibacter flavus sp. nov

A yellow-pigmented, non-motile, Gram-negative bacterium, designated Fg 69T, was isolated from a sediment sample collected in Chazhma Bay (Sea of Japan). The novel organism grew at 10-35 °C, was neutrophilic and required 3-10% NaCl for optimal growth. Strain Fg 69T was able to degrade starch and to hydrolyse gelatin and Tween 80 weakly but not casein or agar. Predominant cellular fatty acids comprised n-C15 and n-C16 branched-chain and straight-chain saturated and unsaturated fatty acids, including iso-C15:0 (5%), anteiso-C15:0 (11%), C15:0 (9%), iso-C15:1 (5%), iso-C16:0 (8%), C16:0 (5%) and C16:1ω7 (5%) and iso- and anteiso-branched 2-OH and 3-OH C15:0 to C17:0 fatty acids (26% in total). The G+C content of the DNA was 40.4 mol%. 16S rRNA gene sequence data indicated that strain Fg 69T belonged to the genus Salegentibacter but was distinct from recognized Salegentibacter species (94-95% sequence similarity). Based on these results, a novel species, Salegentibacter flavus sp. nov., is proposed. The type strain is Fg 69T (= KMM 6000T=CIP 107843T). © 2006 IUMS.