Prevalence and expression of staphylococcal enterotoxin genes in Staphylococcus aureus isolated from food poisoning outbreaks.

Autor: Bastos CP; Federal University of Pelotas (UFPel), Faculty of Agronomy Eliseu Maciel (FAEM), Department of Science and Food Technology, Pelotas, RS, Brazil.; Federal University of Pelotas (UFPel), Faculty of Agronomy Eliseu Maciel (FAEM), Department of Science and Food Technology, Pelotas, RS, Brazil., Bassani MT; Federal University of Pelotas (UFPel), Faculty of Agronomy Eliseu Maciel (FAEM), Department of Science and Food Technology, Pelotas, RS, Brazil.; Federal University of Pelotas (UFPel), Faculty of Agronomy Eliseu Maciel (FAEM), Department of Science and Food Technology, Pelotas, RS, Brazil., Mata MM; Federal University of Pelotas (UFPel), Faculty of Agronomy Eliseu Maciel (FAEM), Department of Science and Food Technology, Pelotas, RS, Brazil.; Federal University of Pelotas (UFPel), Faculty of Agronomy Eliseu Maciel (FAEM), Department of Science and Food Technology, Pelotas, RS, Brazil., Lopes GV; Federal University of Pelotas (UFPel), Faculty of Agronomy Eliseu Maciel (FAEM), Department of Science and Food Technology, Pelotas, RS, Brazil.; Federal University of Pelotas (UFPel), Faculty of Agronomy Eliseu Maciel (FAEM), Department of Science and Food Technology, Pelotas, RS, Brazil., da Silva WP; Federal University of Pelotas (UFPel), Faculty of Agronomy Eliseu Maciel (FAEM), Department of Science and Food Technology, Pelotas, RS, Brazil.; Federal University of Pelotas (UFPel), Faculty of Agronomy Eliseu Maciel (FAEM), Department of Science and Food Technology, Pelotas, RS, Brazil.
Jazyk: angličtina
Zdroj: Canadian journal of microbiology [Can J Microbiol] 2017 Oct; Vol. 63 (10), pp. 834-840. Date of Electronic Publication: 2017 Aug 18.
DOI: 10.1139/cjm-2017-0316
Abstrakt: Staphylococcus aureus is an important pathogen of foodborne origin. The pathogen produces a variety of toxins that include the staphylococcal enterotoxins (SE). The present study aimed to evaluate the prevalence and expression of 5 SE genes (sea, seb, sec, sed, and see) in S. aureus isolated from outbreaks occurred in the state of Rio Grande do Sul, Brazil. All isolates, with the exception of 2, presented the same or higher transcriptional expression than the reference strains for at least 1 of these genes. The presence of SE genes combined with high levels of transcriptional expression suggests that 1 or more SEs were involved with the staphylococcal food poisoning outbreak analyzed in the present study.
Databáze: MEDLINE