Two strains of non-spore-forming, rod-shaped, Gram-positive bacteria, CIP 101303 and CIP 102116, were isolated from human blood in 1976 and 1977, respectively. These strains had chemotaxonomic markers that were consistent with classification in the genus , i.e. MK-10, MK-11 and MK-12 as the major menaquinones, predominant iso- and anteiso-branched cellular fatty acids, galactose, mannose and rhamnose as the cell-wall sugars and ornithine as the diamino acid in the cell-wall peptidoglycan. The DNA G+C content was 70–72 mol%. Comparative 16S rRNA gene sequence studies revealed that strains CIP 101303 and CIP 102116 belonged to the genus and that they were related closely to . The level of DNA–DNA relatedness showed that the two isolates represented a separate genomic species. Based on phenotypic and genotypic results, it is proposed that strains CIP 101303 and CIP 102116 be assigned to a novel species, sp. nov. The type strain is CIP 101303 (=DSM 19164).


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