Data/hora: 06/06/2024 07:42:18

Provedor de dados: | 58
País: | Brazil
Título: | A novel multiplex PCR for the simultaneous detection of Salmonella enterica and Shigella species
Autores: | Radhika,M.; Saugata,Majumder; Murali,H.S.; Batra,H.V.
Data: | 2014-06-01
Ano: | 2014
Palavras-chave: | Salmonella; Shigella; Multiplex PCR; Spiking.
Resumo: | Salmonella enterica and Shigella species are commonly associated with food and water borne infections leading to gastrointestinal diseases. The present work was undertaken to develop a sensitive and reliable PCR based detection system for simultaneous detection of Salmonella enterica and Shigella at species level. For this the conserved regions of specific genes namely ipaH1, ipaH, wbgZ, wzy and invA were targeted for detection of Shigella genus, S. flexneri, S. sonnei, S. boydii and Salmonella enterica respectively along with an internal amplification control (IAC). The results showed that twenty Salmonella and eleven Shigella spp., were accurately identified by the assay without showing non-specificity against closely related other Enterobacteriaceae organisms and also against other pathogens. Further evaluation of multiplex PCR was undertaken on 50 natural samples of chicken, eggs and poultry litter and results compared with conventional culture isolation and identification procedure. The multiplex PCR identified the presence of Salmonella and Shigella strains with a short pre-enrichment step of 5 h in peptone water and the same samples were processed by conventional procedures for comparison. Therefore, this reported multiplex PCR can serve as an alternative to the tedious time-consuming procedure of culture and identification in food safety laboratories.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000200041
Editor: | Sociedade Brasileira de Microbiologia
Relação: | 10.1590/S1517-83822014005000041
Formato: | text/html
Fonte: | Brazilian Journal of Microbiology  v.45 n.2 2014
Fonte: | info:eu-repo/semantics/openAccess