Atypical Helicobacter canadensis Strains Associated with Swine | Zendy

G. Douglas Inglis | Zendy; Malcolm McConville | Zendy; Anno de Jong | Zendy

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Atypical Helicobacter canadensis Strains Associated with Swine

Author(s) -

G. Douglas Inglis,

Malcolm McConville,

Anno de Jong

Publication year - 2006

Publication title -

applied and environmental microbiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.552

H-Index - 324

eISSN - 1070-6291

pISSN - 0099-2240

DOI - 10.1128/aem.02843-05

Subject(s) - biology , 16s ribosomal rna , feces , microbiology and biotechnology , ribosomal rna , typing , gene , helicobacter , genetics , helicobacter pylori

Forty-two Helicobacter isolates were isolated from swine feces in The Netherlands and Denmark. All 12 isolates sequenced (16S rRNA gene) formed a robust clade with Helicobacter canadensis ( approximately 99% similarity). Species-specific PCR indicated that all of the isolates were H. canadensis isolates. Although the appearance of the porcine isolates was similar to the appearance of H. canadensis, only one of these isolates was able to hydrolyze indoxyl acetate, a cardinal characteristic of this taxon. Examination of the 23S rRNA and hsp60 genes revealed high levels of similarity between the porcine isolates and H. canadensis. However, amplified fragment length polymorphism genomic typing showed that isolates recovered from swine feces were genetically distinct from H. canadensis strains obtained from humans and geese.

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