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This Article Full Text (Papers in Press[PDF]) All Versions of this Article: ijs.0.007286-0v1 59/7/1666    most recent Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Google Scholar Articles by Zanoni, R. G. Articles by Vandamme, P. PubMed PubMed Citation Articles by Zanoni, R. G. Articles by Vandamme, P. Agricola Articles by Zanoni, R. G. Articles by Vandamme, P.

Campylobacter cuniculorum sp. nov., from rabbits

¹ University of Bologna;
² University of Gent;
³ University of Helsinki

⁴ E-mail: mirko.rossi{at}helsinki.fi

Eight strains of an unknown thermotolerant Campylobacter species were isolated from caecal contents of rabbits (Oryctolagus cuniculus). All strains were initially identified as Campylobacter by means of genus-specific PCR, but none was identified using species-specific PCRs for known thermophilic species. Cells were spiral shaped with bipolar unsheathed flagella. They had no periplasmic fimbers and appeared coccoid after 10-12 days of incubation. The phylogenetic analyses based on 16S rRNA, rpoB and groEL gene sequences revealed that all strains formed a robust clade which was very distinct from established Campylobacter species. The 16S rRNA pairwise sequence comparisons of strain 150BT with the type strains of the other species revealed that the nearest phylogenetic neighbour was Campylobacter helveticus showing 96.6% of similarity. The uniqueness of these bacteria was confirmed by whole-cell protein electrophoresis. Taken together, these data indicate that the rabbit isolates belong to a new Campylobacter species for which the name Campylobacter cuniculorum sp. nov., is proposed, with 150BT (= LMG 24588T = CCUG 56289T) as the type strain.

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