Taxonomic Study of Bacteroides oralis and Related Organisms and Proposal of Bacteroides veroralis sp. nov.

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Abstract
The genetic and phenotypic properties of 18 strains which were considered to be B. oralis or related organisms were examined. These strains were differentiated into several groups on the basis of DNA homology, physiological properties, guanine-plus-cytosine content of the DNA acid and electrophoretic patterns of cell proteins. The groups were considered to constitute separate species. Strains of group I (strains VPI 7570A, WAL 3030 and 1221) belonged to the newly described species B. denticola. Strain VPI 8906D (group II) was designated a new species, B. buccalis, by Shah and Collins. Strain VPI D27B-24 (group III) is the type strain of B. oralis. The biological properties of none of the 3 groups described above fit the original description of B. oralis (Loesche et al. 1964). Strain VPI D22A-7T did not beong to any of the 3 groups but had phenotype properties that matched the phenotype properties given in the first description of B. oralis. The name B. veroralis was proposed for this organism and strain VPI D22A-7 was deposited in the American Type Culture Collection (= ATCC 33779) as the type strain.