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Studies on the invasion of Notocotylus attenuates (Notocotylidae: Digenea) into its snail host, Lymnaea peregra. In vitro observations on the hatching mechanism of the egg

Published online by Cambridge University Press:  06 April 2009

R. J. Murrills ,
T. A. J. Reader  and
V. R. Southgate
R. J. Murrills*
Affiliation:
Department of Biological Sciences, Portsmouth Polytechnic, King Henry 1 Street, Portsmouth, Hants PO1 2DY
T. A. J. Reader
Affiliation:
Department of Biological Sciences, Portsmouth Polytechnic, King Henry 1 Street, Portsmouth, Hants PO1 2DY
V. R. Southgate
Affiliation:
Department of Zoology, British Museum (Natural History), Cromwell Road, South Kensington, London SW7 5BD
*
*Reprint requests to: Dr R. J. Murrills, Department of Pathology, University of Bristol, The Medical School, University Walk, Bristol BS8 1TD.
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Summary

Media are described which stimulate the eggs of Notocotylus attenuatus to hatch in vitro. Hatching involves opening of the operculum and emergence of the opercular cord to form a tube measuring approximately 75 μm in length along which the sporocyst passes. The sporocyst is then released from the end of the tube. It is suggested that in vivo the opercular cord serves to inject the sporocyst through the snail host's gut wall into the haemocoel.

Type
Research Article
Information
Parasitology , Volume 91 , Issue 3 , December 1985 , pp. 545 - 554
Copyright
Copyright © Cambridge University Press 1985

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References

REFERENCES

Carriker, M. R. (1946). Observations on the functioning of the alimentary system of the snail Lymnaea stagnalis appressa Say. Biological Bulletin Marine Biological Laboratory, Woods Hole, Mass. 91, 88–111.CrossRefGoogle ScholarPubMed
Coil, W. H. (1966). Egg shell formation in the notocotylid trematode Ogmocotyle indica (Bhalerao, 1942), Ruiz, 1946. Zeitschrift für Parasitenkunde 27, 205–9.CrossRefGoogle ScholarPubMed
Coil, W. H. & Reid, W. A. (1965). Desmogonius desmogonius Stephen, 1911. (Pronocephalidae: Digenea), a redescription with observations on egg filament formation. Zeitschrift für Parasitenkunde 25, 506–9.CrossRefGoogle ScholarPubMed
Matthews, B. F. (1981). Cercaria vaullegeardi Pelseneer, 1906. (Digenea: Hemiuridae); the infection mechanism. Parasitology 83, 587–93.CrossRefGoogle Scholar
Murrills, R. J. (1984). Some aspects of the biology of selected larval digeneans. Ph.D. thesis, Portsmouth Polytechnic.Google Scholar
Murrills, R. J., Reader, T. A. J. & Southgate, V. R. (1985). Studies on the invasion of Notocotylus attenuatus (Notocotylidae: Digenea) into its snail host Lymnaea peregra: the contents of the fully embryonated egg. Parasitology 91, 397–405.CrossRefGoogle Scholar
Pearse, A. G. E. (1968). Histochemistry. Theoretical and Applied. London: Churchill Livingstone.Google Scholar
Ratcliffe, L. H. (1968). Hatching of Dicrocoelium lanceolatum eggs. Experimental Parasitology 23, 67–78.Google Scholar
Reynolds, E. S. (1963). The use of lead citrate at high pH as an electron opaque stain in electron microscopy. Journal of Cell Biology 17, 208–12.CrossRefGoogle ScholarPubMed
Weidner, E. (1972). Ultrastructural study of microsporidian invasion into cells. Zeitschrift für Parasitenkunde 40, 227–42.CrossRefGoogle ScholarPubMed
Wright, C. A. & Bennett, M. S. (1964). The life–cycle of Notocotylus attenuatus. Parasitology 54, 14P.Google Scholar