Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-28T02:08:16.107Z Has data issue: false hasContentIssue false
  • English
  • Français

Up to what point are cercariogenesis and sporocystogenesis reversible in schistosomes?

Published online by Cambridge University Press:  05 June 2009

N. Kechemir  and
C. Combes
N. Kechemir
Affiliation:
Service de Parasitologie, Institut Pasteur D'Algérie, Rue du Dr Laveran, Alger, Algeria
C. Combes
Affiliation:
Service de Parasitologie, Institut Pasteur D'Algérie, Rue du Dr Laveran, Alger, Algeria Laboraloire de Biologie Animale, Centre de Biologie et d'Ecologie Tropicale et Méditerranéenne, Université, 66025 Perpignan, France
Get access Rights & Permissions [Opens in a new window]

Abstract

A study of larval development of Schistosoma haematobium in the snail Planorbarius metidjensis infected by transplanted sporocysts showed that some embryos in daughter sporocysts have characters intermediate between cercariae and sporocysts. These embryos are interpreted to be nearly mature cercariae that have partially reverted to be secondary sporocysts. If this explanation is correct, it would mean that the embryos which develop within trematode daughter sporocysts can differentiate either into cercariae or into a new generation of sporocysts, but originate from a single type of germinal cell.

Keywords

Schistosoma haematobiumcercariaeembryogenesistransplantationsporocysts
Type
Research Papers
Information
Journal of Helminthology , Volume 62 , Issue 3 , September 1988 , pp. 261 - 264
Copyright
Copyright © Cambridge University Press 1988

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Jourdane, J. (1978) Perspectives de maintenance de Schistosoma mansoni exclusivement chez les Mollusques vecteurs par l'utilisation des techniques de transplantation. Proceedings of the Fourth International Congress of Parasitology, Warsaw, C, 100–101.Google Scholar
Jourdane, J. & Theron, A. (1980) Schistosoma mansoni: cloning by microsurgical transplantation of sporocysts. Experimental Parasitology, 50, 349–357.CrossRefGoogle ScholarPubMed
Jourdane, J., Theron, A. & Combes, C. (1980) Demonstration of several sporocyst generations as a normal pattern of reproduction of S. mansoni. Acta Tropica, 37, 177–180.Google Scholar
Kechemir, N. & Combes, C. (1982) Développement du Trématode Schistosoma haematobium après transplantation microchirurgicale chez le Gastéropode Planorbarius metidjensis. Comptes–Rendus de l'Académie des Sciences, Paris, Sér III, 295, 505–508.Google Scholar
Sampaio, M. L. Xavier & Fraga De Azevedo, J. (1965) Susceptibility of Planorbarius metidjensis (Forbes) from the south of Portugal (Algarve) and Bulinus (Ph.) africanus from Portuguese Guinea to Schistosoma haematobium from the same province. Anais do Instituto de Medicina Tropical, 22, 57–63.Google Scholar
Southgate, V. R., Wright, C. A., Laziri, H. M. & Knowles, R. J. (1984) Is Planorbarius metidjensis compatible with Schistosoma haematobium and Schistosoma bovis? Bulletin de la Société de Pathologie Exotique, 77, 499–506.Google Scholar