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Cercaria vaullegeardi Pelseneer, 1906 (Digenea: Hemiuridae); development and ultrastructure

Published online by Cambridge University Press:  06 April 2009

B. F. Matthews
B. F. Matthews
Affiliation:
Department of Biology, Plymouth Polytechnic, Drake Circus, Plymouth, Devon PL4 8AA
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Summary

Cercaria vaullegeardi develops in daughter sporocysts within the digestive gland of the prosobranch Gibbula umbilicalis. On emergence into the host mantle cavity the cercarial body retracts into the cystophorous tail, the ‘encysted’ cercaria being then shed into the sea. The encysted cercaria is described at the ultrastructural level for the first time and developmental stages are redescribed. The cercarial body has no penetration or cystogenous glands: a single type of sub-tegumental secretory cell produces vesicles containing neutral mucopolysaccharides which pass into the tegument at encystment. The immotile cystophorous tail consists essentially of a fibrous caudal cyst and 8 appendages including a delivery tube. Scanning electron micrographs show the surface of tegumental membranes enveloping the caudal cyst to be covered with a honeycomb pattern of indentations derived from electron-lucent vesicles produced by the caudal gland. The fibrous-walled delivery tube comprises proximal and distal sections and a modified terminal end-piece.

Type
Research Article
Information
Parasitology , Volume 83 , Issue 3 , December 1981 , pp. 575 - 586
Copyright
Copyright © Cambridge University Press 1981

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References

REFERENCES

Allison, A. C., Davies, P. & dePetris, S. (1971). Role of contractile microfilaments in macrophage movement and endocytosis. Nature, London 232, 153–5.Google ScholarPubMed
Arvy, L. (1963). L'infestation cercarienne chez Gibbula umbilicalis Da Costa. Annales de Parasitologie Humaine et Comparée 38 (5), 783–91.Google Scholar
Bettex-Galland, M. & Hughes, G. M. (1973). Contactile filamentous material in the pillar cells of fish gills. Journal of Cell Science 13, 359–70.CrossRefGoogle Scholar
Bouligand, Y. (1965 a). Sur une architecture torsadée répandue dans de nombreuses cuticules d'Arthropodes. Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences. D: Sciences Naturelles (Paris) 261, 3665–8.Google Scholar
Bouligand, Y. (1965 b). Sur une disposition fibrillaire torsadée commune à plusieurs structures biologiques. Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences. D: Sciences Naturelles (Paris) 261, 4864–7.Google Scholar
Bouligand, Y. (1972). Twisted fibrous arrangements in biological materials and cholesteric mesophases. Tissue and Cell 4 (2), 189–217.CrossRefGoogle ScholarPubMed
Bray, D. (1973). Cytoplasmic actin: a comparative study. Cold Spring Harbor Symposia of Quantitative Biology 37, 567–71.CrossRefGoogle Scholar
Chabaud, A. G. & Campana-Rouget, Y. (1958). Notes sur le trématode Hémiuride Sterrhurus fusiformis Lühe 1901 et sur sa cercaire (? Cercaria vaullegeardi Pelseneer 1906). Vie et Milieu 10, 168–75.Google Scholar
Dalingwater, J. E. (1975). The reality of arthropod cuticular laminae. Cell and Tissue Research 163, 411–13.CrossRefGoogle ScholarPubMed
Froede, H. C. & Wilson, I. B. (1971). Acetylcholinesterase. In The Enzymes, vol. 5, Hydrolysis (ed. Boyer, P. D.), pp. 87–114. London and New York: Academic Press.Google Scholar
Jennings, J. B. & Leflore, W. B. (1972). The histochemical demonstration of certain aspects of cercarial morphology. Transactions of the American Microscopical Society 91 (1), 56–62.CrossRefGoogle ScholarPubMed
Køie, M. (1979). On the morphology and life history of Derogenes varicus (Müller, 1784) Looss, 1901 (Trematoda, Hemiuridae). Zeitschrift für Parasitenkunde 59, 67–78.CrossRefGoogle Scholar
La Rue, G. R. (1957). The classification of digenetic trematodes: a review and a new system. Experimental Parasitology 6, 306–44.Google Scholar
Lee, D. L. (1970). The fine structure of the excretory system in adult Nippostrongylus brasiliensis (Nematoda) and a suggested function for the ‘excretory glands’. Tissue and Cell 2, 225–31.CrossRefGoogle Scholar
Matthews, B. F. (1980). Cercaria vaullegeardi Pelseneer, 1906 (Digenea: Hemiuridae); the daughter sporocyst and emergence of the cercaria. Parasitology 81, 61–9.Google Scholar
Matthews, B. F. (1981). Cercaria vaullegeardi Pelseneer, 1906 (Digenea: Hemiuridae); the infection mechanism. Parasitology 83, 587–93.Google Scholar
Pantin, C. F. A. (1962). Notes on Microscopical Technique for Zoologists. Cambridge University Press.Google Scholar
Pearse, A. G. E. (1968). Histochemistry: Theoretical and Applied, vol. 1. London: H. & A. Churchill.Google Scholar
Pelseneer, P. (1906). Trématodes parasites de mollusques marins. Bulletin Scientifique de La France et de La Belgique 40, 161–86.Google Scholar
Pollard, T. D. & Korn, E. D. (1973). The contractile proteins of Acanthamoeba castellani. Cold Spring Harbor Symposia on Quantitative Biology 37, 573–83.Google Scholar
Popiel, I. (1976 a). Cercaria vaullegeardi Pelseneer, 1906, a rare cystophorous cercaria from Gibbula umbilicalis (Da Costa) in Wales. Norwegian Journal of Zoology 24, 137–41.Google Scholar
Popiel, I. (1976 b). Studies on the ultrastructure and physiology of marine Digenea. Ph.D. thesis, University College of Wales, Swansea.Google Scholar
Reynolds, B. 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.Google Scholar
Rothschild, M. (1938). Cercaria sinitzini n.sp., a cystophorous cercaria from Peringia ulvae (Pennant, 1777). Novitates Zoologicae 41, 42–57.Google Scholar
Saleuddin, A. S. M. & Jones, G. M. (1976). Actin-like filaments in the neurosecretory cells of Helisoma duryi (Gastropoda, Pulmonata). Canadian Journal of Zoology 54, 2001–10.CrossRefGoogle Scholar
Schliwa, M. & Bereiter-Hahn, J. (1975). Pigment movements in fish melanophores: morphological and physiological studies. V. Evidence for a microtubule-independent contractile system. Cell and Tissue Research 158, 61–73.CrossRefGoogle ScholarPubMed
Stunkard, H. W. (1973). Observations on Tubulovesicula pinguis (Linton, 1910) Manter, 1947 and on systematics of the hemiuroid trematodes. Biological Bulletin 145, 607–26.Google Scholar