Biomaterial Database

[The redial generations of Fasciola hepatica L. in Lymnaea truncatula Müller. Multiplicity of developmental patterns]. 1982

D Rondelaud, and D Barthe

The different rediae of Fasciola hepatica were counted in 398 snails individually exposed to single miracidium and then killed at day 30 post-exposure at 20 degrees C. When the redia n degree 1 of generation 1 was alive (327 snails), it produced rediae of generation 2 with high numbers (until 19): these rediae were precocious and could be followed by differentiation of cercariae. When the redia n degree 1 of generation 1 was degenerated (71 snails), an other redia--redia n degree 2 of generation 1 or redia n degree 1 of generation 2--produced daughter rediae with low numbers (until 9): these latter rediae differentiated in the same time as cercariae. The significance of these observations is discussed.

UI	MeSH Term	Description	Entries
D007814	Larva	Wormlike or grublike stage, following the egg in the life cycle of insects, worms, and other metamorphosing animals.	Maggots,Tadpoles,Larvae,Maggot,Tadpole
D008195	Lymnaea	A genus of dextrally coiled freshwater snails that includes some species of importance as intermediate hosts of parasitic flukes.	Lymnea,Lymnaeas,Lymneas
D005210	Fasciola hepatica	A species of helminth commonly called the sheep liver fluke. It occurs in the biliary passages, liver, and gallbladder during various stages of development. Snails and aquatic vegetation are the intermediate hosts. Occasionally seen in man, it is most common in sheep and cattle.	Liver Fluke,Fasciola hepaticas,Fluke, Liver,Flukes, Liver,Liver Flukes,hepatica, Fasciola
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia