Produção Nacional
Revisado por pares
Degradacao de endosporos de Pasteuria penetrans por hipoclorito de sodio
2006; Volume: 30; Issue: 2 Linguagem: Inglês
ISSN
0102-2997
AutoresRosângela Dallemole-Giaretta, Leandro Grassi de Freitas, Wânia dos Santos Neves, Silamar Ferraz, Rosângela D’Arc de Lima Oliveira, Cléia de Fátima Silva Fabry,
Tópico(s)Aquaculture disease management and microbiota
ResumoThe action on P.penetrans endospores of sodium hypochlorite at different concentrations of active chlorine was evaluated. Treatments at different concentrations of active chlorine drastically affected the attachment to M.javanica juveniles, mainly in concentrations above 0.125%. The morphological study showed changes in the structure of the endospores, beginning with the dissolution of the parasporal fibers in sodium hypochlorite at 0.125% of active chlorine and reaching the total destruction of them at 0.5%. One minute of immersion of petri dishes contaminated with Pasteuria penetrans in sodium hypochlorite 0.5% of active chlorine was enough to eliminate 85% of the bacterial endospores and 15 minutes for a completely eliminated them.
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