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Genotypic and phenotypic characterization of Escherichia coli isolated from mollusks in Brazil and the United States.
Miotto, Marília; Ossai, Sylvia A; Meredith, Joan E; Barretta, Clarissa; Kist, Airton; Prudencio, Elane S; R W Vieira, Cleide; Parveen, Salina.
Afiliación
  • Miotto M; Department of Food Science and Technology, Federal University of Santa Catarina, Florianopolis, Santa Catarina, Brazil.
  • Ossai SA; Food Science and Technology Program, University of Maryland Eastern Shore, Princess Anne, Maryland.
  • Meredith JE; Food Science and Technology Program, University of Maryland Eastern Shore, Princess Anne, Maryland.
  • Barretta C; Department of Food Science and Technology, Federal University of Santa Catarina, Florianopolis, Santa Catarina, Brazil.
  • Kist A; Laboratory of Computational and Applied Statistics, Department of Mathematics and Statistics, State University of Ponta Grossa, Ponta Grossa, Parana, Brazil.
  • Prudencio ES; Department of Food Science and Technology, Federal University of Santa Catarina, Florianopolis, Santa Catarina, Brazil.
  • R W Vieira C; Department of Food Science and Technology, Federal University of Santa Catarina, Florianopolis, Santa Catarina, Brazil.
  • Parveen S; Food Science and Technology Program, University of Maryland Eastern Shore, Princess Anne, Maryland.
Microbiologyopen ; 8(5): e00738, 2019 05.
Article en En | MEDLINE | ID: mdl-30311420
The aim of this study was to determine the serogroups, antimicrobial resistance and genetic diversity of Escherichia coli isolates from samples of bivalve mollusks collected along Santa Catarina coast, Brazil, and from the Chesapeake Bay, Maryland, USA. One hundred forty-one E. coli isolates were characterized for serogroups with 181 specific O antisera and antimicrobial susceptibility using the disk diffusion method. The genetic diversity was assessed using pulsed-field gel electrophoresis (PFGE). The results showed that among the isolates, 19.9% were classified as multi-drug resistant (MDR) and resistance was most frequently observed to cephalothin, nitrofurantoin, and ampicillin. The predominant serogroups were O6, O8, and O38. Some serogroups were recognized as pathogenic E. coli. PFGE dendrograms indicated extensive genetic diversity among the isolates. Although characteristics of the E. coli isolates were highly variable, it is important to note that E. coli belonging to pathogenic serogroups and MDR isolates are present in mollusks of both study areas. This is the first report on the phenotypic and genotypic characterization of E. coli from mollusks from Santa Catarina and the Chesapeake Bay that should encourage studies focusing on comparison of isolates across countries.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fenotipo / Escherichia coli / Genotipo / Moluscos Límite: Animals País/Región como asunto: America do norte / America do sul / Brasil Idioma: En Revista: Microbiologyopen Año: 2019 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fenotipo / Escherichia coli / Genotipo / Moluscos Límite: Animals País/Región como asunto: America do norte / America do sul / Brasil Idioma: En Revista: Microbiologyopen Año: 2019 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Reino Unido