[Integumentary argentophilic structures in larval stages (miracidium, redia, cercaria) of Fasciola hepatica (Trematoda, Fasciolidae). Comparison with F. gigantica (author's transl)].
Integumentary argentophilic structures of the miracidium and cercaria are described and with those of F. gigantica compared. In the miracidia, the pattern of the organites of the terebratorium and the arrangement of the papillae between the first and second tier of epidermal plates are similar for the two species. However, the disposition of the medio-ventral plate of the second tier allows the miracidia of the two related species to be distinguished statistically. In the cercariae, the chaetotaxy differs between F. hepatica and F. gigantica in two cephalic regions and on the tail (presence of UD papillae in F. hepatica, absence in F. gigantica). The chaetotaxy of a daughter-redia of F. hepatica is also described. There is an important concentration of papillae around the buccal aperture, whereas at the pharyngeal and post pharyngeal levels, papillae are more spaced on the side supposed to be ventral, and scarce on the side considered dorsal.
D000818:Animals; D002417:Cattle / Q000469:parasitology; D005209:Fasciola / Q000033:anatomy & histology; D005210:Fasciola hepatica / Q000033:anatomy & histology*; D007814:Larva / Q000033:anatomy & histology; D008099:Liver / Q000469:parasitology; D008195:Lymnaea / Q000469:parasitology; D012835:Silver Nitrate; D013045:Species Specificity; D013194:Staining and Labeling
D012835:Silver Nitrate
Les structures argyrophiles tégumentaires des stades larvaires (miracidium, rédie, cercaire) de Fasciola hepatica. Comparaison avec F. gigantica.