Sediminivirga luteola gen. nov., sp. nov., a member of the family Brevibacteriaceae, isolated from marine sediment

A Gram-stain-positive actinobacterial strain, designated F23 T , was isolated from marine sediment collected from the western Pacific. Strain F23 T showed less than 94.5 % 16S rRNA gene sequence similarity with type strains of species with validly published names. Phylogenetic analysis, based on 16S rRNA gene sequences, revealed that the novel isolate formed a distinct monophyletic clade within the family Brevibacteriaceae and clustered distantly with the genera Brevibacterium and Spelaeicoccus . Cells of strain F23 T were non-motile, rod-shaped and aerobic to microaerophilic. Optimal growth occurred at 35-37 °C, at pH 8.0-9.0 and in the presence of 1 % NaCl (w/v). The isolate contained meso -diaminopimelic acid as the characteristic cell-wall diamino acid, MK-8(H 2 ) and MK-7(H 2 ) as the predominant menaquinones and anteiso-C 15 : 0 and anteiso-C 17 : 0 as the major fatty acids. The DNA G+C content of strain F23 T was 69.0 mol%. On the basis of phylogenetic analysis, phenotypic and chemotaxonomic characteristics and 16S rRNA gene signature nucleotide patterns, strain F23 T represents a novel species in a novel genus in the family Brevibacteriaceae , for which the name Sediminivirga luteola gen. nov., sp. nov. is proposed. The type strain is F23 T ( = JCM 19771 T  = CGMCC 1.12785 T  = MCCC 1A09945 T ).