title: Multiplex primer-extension assay for identification of six pathogenic vibrios.
abstract: A multiplex Primer-Extension Reaction (PER) assay, was specifically designed for the identification, of the major human pathogenic Vibrio species (V. cholerae, V. parahaemolyticus, V. vulnificus, V. mimicus, V. alginolyticus and V. fluvialis) in fishery products. The assay, directed towards the rpoA gene, was tested on a total of 287 samples representing six Vibrio species and ten non-Vibrio species. The primers used in the preliminary PCR, designed in well conserved regions upstream and downstream of the diagnosis sites, successfully amplified a 284 bp fragment. The diagnosis sites were simultaneously interrogated using a multiplex PER and the results were confirmed by fragment sequencing. The proposed test provides an appropriate tool to monitor the presence of these human pathogenic species in seafood samples and to evaluate the potential hazard for consumers.
authors.affiliation: Department of Animal Pathology, Faculty of Veterinary Medicine, University of Turin, Grugliasco (To), Italy.
authors.forename: Alessandra
authors.initials: A
authors.lastname: Dalmasso
authors.forename: Tiziana
authors.initials: T
authors.lastname: Civera
authors.forename: Maria Teresa
authors.initials: MT
authors.lastname: Bottero
mesh_terms: D015373:Bacterial Typing Techniques; D003257:Consumer Product Safety; D017931:DNA Primers; D005506:Food Contamination / Q000032:analysis*; D005516:Food Microbiology; D005784:Gene Amplification; D006801:Humans; D010802:Phylogeny; D016133:Polymerase Chain Reaction / Q000379:methods; D017747:Seafood / Q000382:microbiology*; D012680:Sensitivity and Specificity; D017422:Sequence Analysis, DNA; D013045:Species Specificity; D014733:Vibrio / Q000145:classification* / Q000235:genetics* / Q000302:isolation & purification / Q000472:pathogenicity
chemical_list: D017931:DNA Primers