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Title: Otariodibacter oris gen. nov., sp. nov., a member of the family Pasteurellaceae isolated from the oral cavity of pinnipeds. Author: Hansen MJ, Bertelsen MF, Christensen H, Bojesen AM, Bisgaard M. Journal: Int J Syst Evol Microbiol; 2012 Nov; 62(Pt 11):2572-2578. PubMed ID: 22199211. Abstract: A total of 27 bacterial isolates from California sea lions and a walrus tentatively classified within the family Pasteurellaceae was further characterized by genotypic and phenotypic tests. Phylogenetic analysis of partial 16S rRNA and rpoB gene sequences showed that the isolates investigated formed a monophyletic group, tentatively designated Bisgaard taxon 57. According to 16S rRNA gene sequences, the most closely related species with a validly published name was Bisgaardia hudsonensis and the most closely related species based on rpoB sequence comparison was Pasteurella multocida subsp. multocida; highest similarities between the isolates and the type strains of B. hudsonensis and P. multocida subsp. multocida were 95.0 and 88.2%. respectively. All isolates of Bisgaard taxon 57 exhibit the phenotypic characters of the family Pasteurellaceae. Members of Bisgaard taxon 57 can be separated from existing genera of the Pasteurellaceae by the following tests: positive reactions for catalase, oxidase, Voges-Proskauer and indole; no X- or V-factor dependency; and acid production from L-arabinose (slow), L-fucose, maltose and trehalose, but not from dulcitol, D-mannitol, D-mannose or sucrose. The main fatty acids of Bisgaard taxon 57 (CCUG 59994(T)) are C(14:0), C(16:0), C(16:1)ω7c and the summed feature C(14:0) 3-OH/iso-C(16:1) I. This fatty acid profile is characteristic of members of the Pasteurellaceae. The quinone profile of Bisgaard taxon 57 (DSM 23800(T)) was similar to that of other genera in the Pasteurellaceae. The DNA G+C content of strain Baika1(T) is 36.2 mol%, which is at the lower end of the range for members of the family Pasteurellaceae. On the basis of both phylogenetic and phenotypic evidence, it is proposed that members of Bisgaard taxon 57 should be classified as representatives of a novel species in a new genus, Otariodibacter oris gen. nov., sp. nov. The type strain of Otariodibacter oris is Baika1(T) (=CCUG 59994(T)=DSM 23800(T)), which was isolated from the oral cavity of a healthy California sea lion in Copenhagen Zoo, Denmark, in 2007.[Abstract] [Full Text] [Related] [New Search]