[Development of the sporocysts of Schistosoma bovis after microsurgical transplantation in Bulinus truncatus].

Microsurgical transplantations of Schistosoma bovis daughter sporocysts to uninfected Bulinus truncatus leads to a dedifferenciation of transplanted sporocysts producing an additional generation of daughter sporocysts. These ones settle into the whole digestive gland and produce infective cercariae. For all the parasitosis, a part of the daughter sporocysts born from the transplanted ones, remains in the head-foot region and are in their turn responsible for an active sporocystogeny. Data demonstrate that the cercarial production dynamics is at least in part in relation with the intramollusc dynamics of sporocyst populations. Success of microsurgical transplantation of S. bovis sporocysts permits cloning perspective of this species.