Metabolism of phenylpropionic acid in enteropathogenic Escherichia coli belonging to serogroup O111 and its application for diagnosis

Metabolism of phenylpropionic acid in enteropathogenic Escherichia coli belonging to serogroup O111 and its application for diagnosis

Autor Irino, Kinue Google Scholar
Dias, Angela Maria G Google Scholar
Kano, Elena Google Scholar
Vaz, Tania MI Google Scholar
Kato, Maria AMF Google Scholar
Goncalces, Celia R. Google Scholar
Vieira, Monica AM Autor UNIFESP Google Scholar
Gomes, Tania Aparecida Tardelli Autor UNIFESP Google Scholar
Instituição Inst Adolfo Lutz Registro
Universidade Federal de São Paulo (UNIFESP)
Resumo We evaluated a biochemical assay based on the ability to metabolise beta -phenylpropionic acid (PPA) as a diagnostic aid in the identification of typical enteropathogenic Escherichia coli (EPEC) strains. A total of 1061 E. coli strains of serogroups O55, O111, and O119 were initially characterised regarding their H types (serotypes) and the presence of EPEC DNA sequences, eae, EAF, and bfpA. in case of the serogroup O111 strains, 84.6% carried the typical EPEC markers, and the great majority of those (98.1%) were PPA-positive. in contrast, only 0.9% of the serogroups O55 and O119 strains carrying the typical EPEC markers (53.6% and 75.4%, respectively) were PPA-positive. We conclude that the PPA test is a useful method to detect typical EPEC strains only among strains of the O111 serogroup. (C) 2001 Federation of European Microbiological Societies. Published by Elsevier Science B.V. All rights reserved.
Palavra-chave Escherichia coli
enteropathogenic Escherichia coli
serotype
beta-phenylpropionic acid
Idioma Inglês
Data de publicação 2001-10-16
Publicado em Fems Microbiology Letters. Amsterdam: Elsevier B.V., v. 204, n. 1, p. 105-110, 2001.
ISSN 0378-1097 (Sherpa/Romeo, fator de impacto)
Publicador Elsevier B.V.
Extensão 105-110
Fonte http://dx.doi.org/10.1111/j.1574-6968.2001.tb10871.x
Direito de acesso Acesso aberto Open Access
Tipo Artigo
Web of Science WOS:000172003700019
Endereço permanente http://repositorio.unifesp.br/handle/11600/26644

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