Arcticibacterium luteifluviistationis gen. nov., sp nov., isolated from Arctic seawater

A Gram-staining-negative, aerobic, non-motile and yellow-pigmented bacterium, designated strain SM1504(inverted perpendicular), was isolated from Arctic seawater. It hydrolysed aesculin and gelatin but did not reduce nitrate to nitrite. Phylogenetic analysis of 16S rRNA gene sequences revealed that strain SM1504(inverted perpendicular) constituted a distinct phylogenetic line within the family Cytophagaceae and was closely related to species of the genera Lacihabitans, Emticicia, Fluviimonas and Leadbetterella, with respect to which low sequence similarities between 88.9 and 91.6% were observed. The major fatty acids of strain SM1504(inverted perpendicular) were summed feature 3 (comprising C-16 : 1 omega 7c and/or iso-C-15 : 0 2-OH) and iso-C-15 : 0. The predominant polar lipids of strain SM1504(inverted perpendicular)were phosphatidylethanolamine and one unidentified lipid. The only respiratory quinone detected in strain SM1504(inverted perpendicular) was MK7. The DNA G+C content of strain SM1504(inverted perpendicular) was 40.8 mol%. On the basis of the phylogenetic, chemotaxonomic and phenotypic characterization in this study, strain SM1504(inverted perpendicular) is considered to represent a novel species in a new genus of the family Cytophagaceae, for which the name Arcticibacterium luteifluviistationis gen. nov., sp. nov. is proposed. The type strain is SM1504(inverted perpendicular) (= KCTC 42716(inverted perpendicular) = CCTCC AB 2015348(inverted perpendicular)).