Exposure to Fasciola hepatica miracidia increases the sensitivity of Lymnaea (Fossaria) humilis to high and low pH.

dc.creatorIRENE CRUZ MENDOZA
dc.creatorEDNA NARANJO GARCIA
dc.creatorMARIA TERESA CLEMENCIA QUINTERO MARTINEZ
dc.creatorOSVALDO FROYLAN IBARRA VELARDE
dc.creatorMARIA DOLORES CORREA BELTRAN
dc.date2006
dc.date.accessioned2023-07-25T16:15:52Z
dc.date.available2023-07-25T16:15:52Z
dc.identifier10.1645/GE-3542RN.1
dc.identifierhttp://repositorio.pediatria.gob.mx:8180/handle/20.500.12103/3120
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7805198
dc.descriptionHumidity and temperature have been considered important factors affecting the infectivity of Fasciola hepatica to its molluscan host. One hundred and thirty laboratory-reared Lymnaea humilis were exposed for 4 hr to the miracidia of F. hepatica over a pH range from 4.0 to 10.0, and their rates of survival were compared with 130 similarly treated but unexposed control snails. All control snails died within 24 hr at pH 4.0, but they showed better survival at pH 5.0-10.0. Their sensitivity to solutions with high and low pH, however, was increased if kept in the presence of F. hepatica miracidia. Snails exposed at pH 5.0 died within 24 hr, whereas most other pHs also affected survival such that by day 18 only those snails exposed at pH 7.2 remained alive. The increased sensitivity of the snails to pH could be explained by a damage-mediated release of parasite enzymes, because infectivity was highest at pHs associated with the lowest host mortality. © American Society of Parasitologists 2006.
dc.formatapplication/pdf
dc.languagespa
dc.publisher American Society of Parasitologists (ASP)
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.sourceJournal of Parasitology 92(3):650 - 652
dc.subjectinfo:eu-repo/classification/cti/3
dc.subjectFasciola hepática - Fisiología - Animales
dc.subjectInteracciones huésped-Parásitos - Animales
dc.subjectConcentración de Iones de hidrógeno - Animales
dc.subjectLymnaea - Parasitología - Animales
dc.subjectLymnaea - Fisiología - Animales
dc.subjectFasciola hepatica - Physiology - Animals
dc.subjectHost-Parasite interactions - Animals
dc.subjectHydrogen-Ion concentration - Animals
dc.subjectLymnaea - Parasitology - Animals
dc.subjectLymnaea - Physiology - Animals
dc.titleExposure to Fasciola hepatica miracidia increases the sensitivity of Lymnaea (Fossaria) humilis to high and low pH.
dc.typeinfo:eu-repo/semantics/article


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