INVESTIGADORES
ABBONA Cinthia Carolina
artículos
Título:
Comparative Effects of Heat and Osmotic stress on non-enterotoxigenic and enterotoxigenic strains
Autor/es:
ABBONA, CINTHIA CAROLINA; STAGNITTA, PATRICIA VIRGINIA
Revista:
ANAEROBE
Editorial:
ELSEVIER SCI LTD
Referencias:
Lugar: Amsterdam; Año: 2016 vol. 39 p. 105 - 113
ISSN:
1075-9964
Resumen:
Clostridium perfringens isolates associated with food poisoning carries a chromosomal cpe gene, while non-foodborne human gastrointestinal disease isolates carry a plasmid cpe gene. The enterotoxigenic strains tested produced vegetative cells and spores with significantly higher resistance than nonenterotoxigenic strains. These results suggest that the vegetative cells and spores have a competitive advantage over non-enterotoxigenic strains. However, no explanation has been provided for the significant associations between chromosomal cpe genotypes with the high resistance, which could explain the strong relationship between chromosomal cpe isolates and C. perfringens type A food poisoning. Here, we analyse the action of physical and chemical agent on non-enterotoxigenic and enterotoxigenic regional strains. And this study tested the relationship between the sensitivities of spores and their levels SASPs (small acid soluble proteins) production in the same strains examined.
