The taxonomic status of a verrucomicrobial strain isolated from marine sediment was established based on a polyphasic examination. The novel isolate, strain YM29-052, was obligately aerobic, Gram-negative, non-motile, coccoid or rod-shaped and chemoheterotrophic. Phylogenetic analyses based on 16S rRNA gene sequences demonstrated that the new isolate shared approximately 94–99 % sequence similarity with members of genus of the family within the phylum ‘’. Genomic DNA–DNA hybridization between strain YM29-052 and HOact23 showed relatedness of <70 %, the value commonly accepted as the threshold for the phylogenetic definition of a species. Strain YM29-052 produces carotenoid compounds that render the cell biomass a pink colour; the strain also contains squalene. The cell-wall peptidoglycan of the novel strain contains muramic acid and -diaminopimelic acid. The DNA G+C content of strain YM29-052 was 47.7 mol%; MK-8 and MK-9 were the major menaquinones. The presence of iso-C, iso-C and C 7 as major cellular fatty acids supported the identification of the novel isolate as a member of the genus . On the basis of polyphasic taxonomic evidence, it was concluded that strain YM29-052 should be classified within a novel species of the genus , for which the name sp. nov. is proposed. The type strain is YM29-052 (=MBIC08323 =KCTC 22127).


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