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1 Department of Veterinary Pathobiology, Faculty of Life Sciences University of Copenhagen;
2 Department for Farm Animals and Herd Management, Clinic for Avian, Reptile and Fish Medicine, Univer
3 E-mail: cava{at}dsr.life.ku.dk
A collection of 12 strains isolated from diseased tortoises tentatively identified as [Pasteurella] testudinis-like based on phenotypical characters were compared with three reference strains of [Pasteurella] testudinis. All strains could be separated from the reference strains with respect to 16S rRNA gene sequence, partial sequence of the house-keeping gene rpoB and by phenotypic characters. A new genus of Pasteurellaceae Pohl 1981 with one species Chelonobacter oris gen. nov., sp. nov. is proposed based upon differences in 16S rRNA and rpoB gene sequence. β-haemolysis, acid production from (+)-L arabinose, dulcitol, (-)-D-mannitol, (+)-D-mannose, trehalose and salicin separate the genus from the exsiting genera of Pasteurellaceae in addition to reactions for β-galactosidase, urease, and reactions in
-glucosidase. Differences in indole, phosphatase, β-glucosidase and production of acid from dulcitol and trehalose separate Chelonobacter oris from [Pasteurella] testudinis. Several phenotypic characters separate Chelonobacter oris from Bisgaard's taxa 14 and 32.The type strain of Chelonobacter oris is 1662T (= CCUG 55632T = DSM 21392T).
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