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Study on the intramolluscal development of Schistosoma bovis: demonstration of three patterns of sporocystogenesis by daughter sporocysts

Published online by Cambridge University Press:  06 April 2009

R. Touassem  and
A. Théron
R. Touassem
Affiliation:
Laboratoire de Biologie Animale, UA 698, Université de Perpignan, Avenue de Villeneuve, 66025 Perpignan Cedex, France
A. Théron
Affiliation:
Laboratoire de Biologie Animale, UA 698, Université de Perpignan, Avenue de Villeneuve, 66025 Perpignan Cedex, France
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Summary

Daughter sporocysts (SpII) of Schistosoma bovis produced by the mother sporocyst (SpI) can direct their production along three different pathways during intramolluscal development. (i) Direct sporocystogenesis–tertiary sporocysts (SpIII) are directly produced by non-cercariae producing daugher sporocysts (SpIII). (ii) Simultaneous sporocystogenesis and cercariogenesis–SpIII are produced by Spil in which cercariae are being produced. (iii) Sporocystogenesis after cercariogenesis-Spill are produced by SpIl in which cercariae are undergoing degeneration. These mechanisms can be interpreted in terms of demographic strategy leading swiftly to the taking over and optimum exploitation of the host's hiotic capacity.

Type
Research Article
Information
Parasitology , Volume 92 , Issue 2 , April 1986 , pp. 337 - 341
Copyright
Copyright © Cambridge University Press 1986

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References

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