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handle: 10261/18504
[ES]Se han estudiado mediante microscopía óptica las alteraciones histopatológicas producidas por el trematodo hepático Dicrocoelium dendriticum, en la glándula digestiva y en la gónada de dos especies de moluscos hospedadores intermediarios, pertenecientes al género Cernuella, infestadas experimentalmente y mantenidas en condiciones de laboratorio hasta su sacrificio a los 3 meses post-infestación. Se ha constatado la presencia de esporocistos secundarios de D. dendriticum en ambas especies de moluscos sometidos a infestación, con un mayor nivel de parasitación en C. cespitum arigonis que en C. virgata. Asociados a la presencia del parásito se observa una infiltración hemocítica, una vacuolización de las células de calcio y un aumento de lipofuscinas en las células digestivas. Además, en C. cespitum arigonis llega a producirse una casi total castración parasitaria.
[EN]The histopathological alterations produced by the hepatic trematode Dicrocoelium dendriticum in the digestive gland and gonad of two species of intermediate host molluscs of the genus Cernuella were studied by light microscopy. Animals were experimentally infected and kept under laboratory conditions, then killed 3 months post-infection. Secondary sporocysts of D. dendriticum are evident in the experimentally infected specimens of both species. The infection degree is greater in C. cespitum arigonis than in C. virgata. Hemocytic infiltration, as well as calcium ceil plasm vacuolisation and an increase of digestive cell lipofuscines are associated with the presence of the parasite. Besides, there is a great parasitic castration in C. cespitum arigonis.
Subvencionado por la Junta de Castilla y León (Proyecto nº 0701/89)y por la CICYT (Proyecto AGF92/0588)
7 páginas, 9 figuras.
Peer reviewed
Intermediate host molluscs, Cernuella, Histopatología, Gastropoda, Histopathology, Trematoda, Dicrocoelium, Moluscos hospedadores intermediarios, Dicrocoeliidae
Intermediate host molluscs, Cernuella, Histopatología, Gastropoda, Histopathology, Trematoda, Dicrocoelium, Moluscos hospedadores intermediarios, Dicrocoeliidae
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