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Scanning and transmission electron microscopical observations on the tegument of excysted metacercariae and adults of Zygocotyle lunata

Published online by Cambridge University Press:  05 June 2009

S. W. B. Irwin ,
T. J. J. McCloughlin  and
B. Fried
S. W. B. Irwin
Affiliation:
Department of Biological and Biomedical Sciences, Faculty of Science and Technology, University of Ulster at Jordanstown, Shore Road, Newtownabbey, Co. Antrim BT37 0QB, Northern Ireland
T. J. J. McCloughlin
Affiliation:
Department of Biological and Biomedical Sciences, Faculty of Science and Technology, University of Ulster at Jordanstown, Shore Road, Newtownabbey, Co. Antrim BT37 0QB, Northern Ireland
B. Fried
Affiliation:
Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
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Abstract

Scanning and transmission electron microscopical obervations were made on the tegument of excysted metacercariae and adults of the paramphistome. Zygocotyle lunata (Digenea: Trematoda). In accord with other paramphistomes studied, this species lacks spines and mitochondria in the tegumentary syncytium and associated cytons. The newly excysted metacercarie, which possessed relatively few tegumental papillae, were cylindrical in comparison to adults which were distinctly flat. The adults had large numbers of tegumental papillae in the region of the oral sucker and acetabulum.

Keywords

Zygocotyle lunataTrematodametacercariaeadultsscanning electron microscopytransmission electron microscopymorphologyultrastructure
Type
Research Papers
Information
Journal of Helminthology , Volume 65 , Issue 4 , December 1991 , pp. 270 - 274
Copyright
Copyright © Cambridge University Press 1991

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References

REFERENCES

Coggins, J. R. & McDaniel, J. S. (1972) Ultrastructure of Zygocotyle lunata (Trematoda, Digenea, Paramphistomidae). The Association of Southeastern Biologists Bulletin 19, 61.Google Scholar
Dunn, T. S., Hanna, R. E. B. & Nizami, W. A. (1987) Ultrastructural and cytochemical observations on the tegument of three species of paramphistomes (Platyhelminthes; Digenea) from the Indian water buffalo Bubalus bubalis. International Journal for Parasitology, 17, 1153–1161.CrossRefGoogle ScholarPubMed
Eduardo, S. L. (1982) Taxonomy of the family Paramphistomidae with reference to morphology of species occurring in ruminants. 1. General considerations. Systematic Parasitology, 4, 7–57.CrossRefGoogle Scholar
Fried, B. (1970) Infectivity, growth, development, excystation and transplantation of Zygocotyle lunata (Trematoda) in the chick. Journal of Parasitology, 56, 44–47.Google Scholar
Fried, B. & Wilson, B. D. (1981) Survival of metacercariae of Zygocotyle lunata (Trematoda) in half-strength Locke's solution under refrigeration. Proceedings of the Helminthological Society of Washington, 48, 96–97.Google Scholar
Fried, B., Robbins, S. H. & Nelson, P. D. (1978) In vivo and in vitro excystation of Zygocotyle lunata (Trematoda) metacercariae and histochemical observations on the cyst. Journal of Parasitology, 64, 395–397.CrossRefGoogle ScholarPubMed
Irwin, S. W. B., McKerr, G., Judge, B. C. & Moran, I. (1984) Studies on metacercarial excystment in Himasthla leptosoma (Trematoda: Echinostomatidae) and newly emerged metacercariae. International Journal for Parasitology, 14, 415–421.Google Scholar
Stunkard, H. W. (1917) Studies on North American Polystomidae, Aspidogastridae, and Paramphistomidae. Illinois Biological Monograph, 3, 287–395.Google Scholar
Threadgold, L. T. (1984) Parasitic platyhelminths. In: Biology of the Integument, Vol. 1, Invertebrates (editors, Bereiter-Hahn, J., Matoisky, A. G. & Richards, K. S.) pp. 132–191. Springer, Berlin.CrossRefGoogle Scholar
Willey, C. H. (1941) The life history and bionomics of the trematode Zygocotyle lunata (Paramphistomatidae). Zoologica, 26, 65–88.Google Scholar