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Three novel micro-organisms, designated strains OMB115T, OMB118 and OMB120, were isolated from dental plaque from golden hamsters fed with a high-carbohydrate diet. The three strains were Gram-positive, facultatively anaerobic rods that lacked catalase activity. Analysis of their partial 16S rRNA gene sequences indicated that these isolates belonged to the genus Bifidobacterium. They grew under aerobic conditions and each had a DNA G+C content of 53 mol%. On the basis of phylogenetic analyses involving phenotypic characterization and partial 16S rRNA gene sequencing, strain OMB115T represents a novel species of the genus Bifidobacterium, for which the name Bifidobacterium tsurumiense sp. nov. is proposed. The type strain is OMB115T (=JCM 13495T =DSM 17777T).
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International Journal of Systematic and Evolutionary Microbiology vol. 58 , part 1, pp. 144 - 148
Supplementary Fig. S1. Neighbour-joining phylogenetic tree, based on partial hsp60 gene sequences (positions 304–831 of the E. coli hsp60 gene), for strain OMB115 Tand related taxa. [PDF](19 KB)