title: Phylogenetic analysis of members of the genus Porphyromonas and description of Porphyromonas cangingivalis sp. nov. and Porphyromonas cansulci sp. nov.
abstract: The partial 16S rRNA gene sequences of representative strains of two groups of anaerobic, gram-negative, pigmented, asaccharolytic, rod-shaped bacteria isolated from subgingival plaque of dogs with naturally occurring periodontal disease were determined. A comparative analysis of the rRNA sequence data revealed that the two groups of organisms represent previously unknown lines of descent within the genus Porphyromonas. On the basis of our phylogenetic findings and the phenotypic distinctiveness of the organisms, two new species, Porphyromonas cangingivalis and Porphyromonas cansulci, are proposed.
authors.affiliation: Department of Microbiology, AFRC Institute of Food Research, Reading Laboratory, Earley Gate, United Kingdom.
authors.forename: M D
authors.initials: MD
authors.lastname: Collins
authors.forename: D N
authors.initials: DN
authors.lastname: Love
authors.forename: J
authors.initials: J
authors.lastname: Karjalainen
authors.forename: A
authors.initials: A
authors.lastname: Kanervo
authors.forename: B
authors.initials: B
authors.lastname: Forsblom
authors.forename: A
authors.initials: A
authors.lastname: Willems
authors.forename: S
authors.initials: S
authors.lastname: Stubbs
authors.forename: E
authors.initials: E
authors.lastname: Sarkiala
authors.forename: G D
authors.initials: GD
authors.lastname: Bailey
authors.forename: D I
authors.initials: DI
authors.lastname: Wigney
mesh_terms: D001482:Base Composition; D001483:Base Sequence; D008969:Molecular Sequence Data; D010802:Phylogeny; D017861:Porphyromonas / Q000145:classification* / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics
chemical_list: D012336:RNA, Ribosomal, 16S