Major products of glucose fermentation were acetate, hydrogen, and carbon dioxide. Major cellular fatty acids were iso- and anteiso-C15:0. Phosphatidylethanolamine, an unidentified phospholipid, and three unidentified polar lipids were detected in cellular lipids fractions. The quinone was MK-7. The size of complete genome of strain 38H-strT was 3.2 Mb; DNA G+C content was 38.3 mol%. According to 16S rRNA gene sequence and conserved protein sequences phylogenies, strain 38H-strTrepresented a deeply branched lineage near the root of the class Bacteroidia.
Based on phylogenetic analysis and phenotypic features the novel isolate was assigned to a novel family within the order Bacteroidales ;for which the name Tenuifilaceae ;fam. nov. is proposed. Strain 38H-strT (=DSM 100343T =VKM B-2964T) represents the first genus and specie Tenuifilum thalassicum gen. nov., sp. nov.
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