Etude ultrastructurale des r�cepteurs sensoriels t�gumentaires de quelques Tr�matodes Dig�n�tiques larvaires

Bacciger bacciger (Trematoda, Fellodistomidae) infection in commercial clams Donax trunculus (Bivalvia, Donacidae) from the sandy beaches of the Western Mediterranean

“…Some new characters are described here, including the presence of a birth pore located at the most motile protruding edge of the sporocyst, uniciliate sensory organs and cup shaped sensory-like structures on the Matricon-Gondran (1969), who described long, tubular invaginations of the external tegumentary membrane. The numerous pits detected by SEM on the sporocyst surface in the present study closely correspond to the entrance of the invaginations mentioned.…”

“…The numerous pits detected by SEM on the sporocyst surface in the present study closely correspond to the entrance of the invaginations mentioned. Functionally, the sporocyst tegument would allow for the absorption of nutrients from the host (Bibby & Rees 1971, Matricon-Gondran 1971b and tubular invaginations greatly increase the absorptive surface area. The morphologic aspect of uniciliate sensory receptors here described by SEM as scattered on the surface of B. bacciger sporocysts, are compatible with the fine structure proposed by Matricon-Gondran (1971b) for single ciliate receptors in sporocysts of the same species.…”

“…The 2 rings of uniciliate sensory organs located on the ventral sucker of the cercariae of Bacciger bacciger may have a chemo-or tangoreceptor character (Matricon-Gondran 1971b). Within fellodistomid cercariae, an examination of Cercaria fragosa by light microscopy reveals 6 papillae on the acetabulum (Yamaguti 1975).…”

Étude du tégument et des récepteurs sensoriels du scolex d’un plérocercoïde de Cestode Tetraphyllidea à l’aide de la microscopie électronique

“…I, 2 et 3) surtout au niveau des bothridies et du myzorhynque. Une forte proportion de ces papilles pourrait correspondre à des récepteurs sensoriels (Matricon-Gondran, 1971 bl. : basale; mt.…”

Oncomiracidiums et phylogenèse des Monogenea (Plathelminthes)

“…Comme cela a été mis en évidence chez les Trématodes, en microscopie optique (Rohde, 1966(Rohde, , 1968(Rohde, , 1972 et en microscopie électronique (Dixon et Mercer, 1965 ;Erasmus, 1967 ;Morris et Threadgold, 1967 ;Wilson, 1970 ;Matricon-Gondran, 1971 ;Brooker, 1972), il existe aussi divers types de récepteurs sensoriels tégumentaires chez les Monogènes. Leur ultrastructure a été étudiée par Lyons (1969Lyons ( a et b, 1972Lyons ( a, 1973.…”