Abstract
A Gram-stain-negative, strictly aerobic, pale-yellow pigmented, rod-shaped, chemoheterotrophic bacterium, designated A6F-11(T), was isolated from a marine sponge collected in Japan. Phylogenetic analysis based on the 16S rRNA gene sequence indicated that the novel marine strain was affiliated with the family Flavobacteriaceae of the phylum Bacteroidetes and that it shared the highest (92.9%) sequence similarity with Arenibacter palladensis LMG 21972(T). The strain could be differentiated phenotypically from related members of the family Flavobacteriaceae. The major fatty acids of strain A6F-11(T) were iso-C15:1 G, iso-C15:0, C16:1 ω6c and/or C16:1 ω7c and iso-C17:0 3-OH. The polar lipid profile consisted of phosphatidylglycerol, two unidentified aminolipids and two unidentified lipids. The DNA G+C content was 34.7mol%, and the major respiratory quinone was menaquinone 6 (MK-6). From the distinct phylogenetic position and combination of genotypic and phenotypic characteristics, the strain is considered to represent a novel taxon in the family Flavobacteriaceae, for which the name Spongiimicrobium salis gen. nov., sp. nov. is proposed. The type strain of S. salis gen. nov., sp. nov. is A6F-11(T) (= KCTC 42753(T)=NBRC 111401(T)).
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