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Published on: October 18, 2019
Prevalence and expression of staphylococcal enterotoxin genes in Staphylococcus aureus isolated from food poisoning
Caroline Peixoto Bastos1,1, Milena Tomasi Bassani1,1, Marcia Magalhães Mata1,1
1Federal University of Pelotas (UFPel), Faculty of Agronomy Eliseu Maciel (FAEM), Department of Science and Food Technology, Pelotas, RS, Brazil.
Abstract:
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.
