Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-19T08:08:51.178Z Has data issue: false hasContentIssue false
  • English
  • Français

Ultrastructure of the tegument of Saccocoelioides godoyi

Published online by Cambridge University Press:  12 April 2024

S.C. Cohen ,
A. Kohn  and
M. de Fatima Diniz Baptista-Farias
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The tegument of adult Saccocoelioides godoyi Kohn & Froes, 1986 (Digenea: Haploporidae), specimens of which were collected from the intestine of the freshwater fish, Leporinus friderici (Bloch, 1794) (Anostomidae) from the reservoir of Itaipu Hydroelectric Power Station, Parana State, Brazil, was studied by transmission electron microscopy. The tegument comprises an external anucleate layer, covered by a surface plasma membrane and associated glycocalyx. The surface layer is bound by the basal plasma membrane and contains spines, two types of inclusion bodies and mitochondria. Tegumental cell bodies are located beneath the surface musculature and contain a single nucleus, cytoplasm with rough endoplasmic reticulum, mitochondria, ribosomes, and inclusion bodies similar to those found in the external layer. Cytoplasmic strands connect the cell bodies to the external surface layer, suggesting that the inclusion bodies are produced in these cells and pass up into the syncytium, as is known for other digeneans from experimental evidence.

Type
Research Article
Information
Journal of Helminthology , Volume 75 , Issue 1 , January 2001 , pp. 15 - 21
Copyright
Copyright © Cambridge University Press 2001

References

Abbas, M.K. & Cain, G.D. (1987) Actin and intermediate-sized filaments of the spines and cytoskeleton of Schistosoma mansoni . Parasitology Research 73, 66–74.CrossRefGoogle ScholarPubMed
Abdul-Salam, J. & Sreelatha, B.N.S. (1992) The surface topography and ultrastructure of the tegument of the ectoparasitic digenean Transversotrema licinum . Zoologischer Anzeiger 228, 248–261.Google Scholar
Bogitsh, B.J. (1968) Cytochemichal and ultrastructure observations on the tegument of the trematode Megalodiscus temperatus . Transactions of the American Microscopical Society 87, 477–486.CrossRefGoogle ScholarPubMed
Brennan, G.P., Hanna, R.E.B. & Nizami, W.A. (1991) Ultrastructural and histochemical observations on the tegument of Gastrodiscoides hominis (Paramphistoma: Digenea). International Journal for Parasitology 21, 897–905.CrossRefGoogle ScholarPubMed
Cohen, S.C., Kohn, A. & Barth, O.M. (1995) Scanning electron microscopic study of Prosorhynchoides arcuatus (Linton, 1900) (Bucephalidae: Digenea). Memórias do Instituto Oswaldo Cruz 90, 25–32.CrossRefGoogle ScholarPubMed
Cohen, S.C., Kohn, A. & Barth, O.M. (1996) Ultrastructure of the tegument of Prosorhynchoides arcuatus (Linton, 1900) (Trematoda: Bucephalidae). Memórias do Instituto Oswaldo Cruz 91, 463–470.CrossRefGoogle Scholar
Ferrer, J.R., Gracenea, M., Trullols, M. & Gonzalez-Moreno, O. (1996) Ultrastructural observations of the tegument of Postorchigenes gymnesicus (Digenea: Lecithodendriidae). Journal of Helminthology 70, 13–19.CrossRefGoogle ScholarPubMed
Halton, D.W. (1982) Morphology and ultrastructure of parasitic helminths. pp. 60–69 in Mettrick, D.F. & Desser, S.S. (Eds) Parasites: their world and ours. Holland, Elsevier Biomedical Press.Google Scholar
Hanna, R.E.B. (1980a) Fasciola hepatica: glycocalyx replacement in the juvenile as a possible mechanism for protection against host immunity. Experimental Parasitology 50, 103–114.CrossRefGoogle ScholarPubMed
Hanna, R.E.B. (1980b) Fasciola hepatica: an immunofluorescent study of antigenic changes in the tegument during development in the rat and the sheep. Experimental Parasitology 50, 155–170.CrossRefGoogle ScholarPubMed
Køie, M. (1971) On the histochemistry and ultrastructure of the tegument and associated structures of the cercaria of Zoogonoides viviparus in the first intermediate hosts. Ophelia 9, 165–206.CrossRefGoogle Scholar
Luft, J.H. (1961) Improvements in epoxy resin embedding-methods. Journal of Biophysics and Cytology 9, 409.CrossRefGoogle ScholarPubMed
Lumsden, R.D. (1975) Surface ultrastructure and cytochemistry of parasitic Plathyhelminthes. Experimental Parasitology 37, 267–334.CrossRefGoogle Scholar
Mattison, R.G., Hanna, R.E.B. & Nizami, W.A. (1994) Ultrastructure and histochemistry of the tegument of juvenile paramphistomes during migration in Indian ruminants. Journal of Helminthology 68, 211–221.CrossRefGoogle ScholarPubMed
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, 208–212.CrossRefGoogle ScholarPubMed
Senft, A.W., Philpot, D.E. & Pelkofsky, A.H. (1961) Electron microscope observations on the integument, flame cells and gut of Schistosoma mansoni . Journal of Parasitology 47, 217–229.CrossRefGoogle ScholarPubMed
Seo, M., Chai, J.Y. & Lee, S.H. (1995) TEM ultrastructure of the tegumental layer of Gymnophalloides seoi (Digenea: Gymnophallidae). Korean Journal of Parasitology 33, 165–172.CrossRefGoogle ScholarPubMed
Shannon, W.A. & Bogitsh, B.J. (1971) Megalodiscus temperatus: comparative radioautography of glucose-3H incorporation. Experimental Parasitology 29, 309–319.CrossRefGoogle ScholarPubMed
Sharma, P.N. & Hanna, R.E.B. (1988) Ultrastructure and cytochemistry of the tegument of Orthocoelium scoliocoelium and Paramphistomum cervi (Trematoda: Digenea). Journal of Helminthology 62, 331–343.CrossRefGoogle ScholarPubMed
Sharma, P.N., Rai, N. & Brennan, G.P. (1996) Ultrastructure of the tegument of the trematode Ganeo tigrinum parasitizing the intestine of Indian frogs. Journal of Helminthology 70, 137–142.CrossRefGoogle ScholarPubMed
Sobhon, P., Anantavara, S., Dangprasert, T., Viyanant, V., Krailas, D., Upatham, E.S., Wanichanon, C. & Kusamran, T. (1998) Fasciola gigantica: studies of the tegument as a basis for the development of immunodiagnosis and vaccine. Southeast Asian Journal of Tropical Medicine and Public Health 29, 387–400.Google ScholarPubMed
Stitt, A.W., Fairweather, I., Trudgett, A.G., Johnston, C.F. & Anderson, S.M.L. (1992) Localization of actin in the liver fluke, Fasciola hepatica . Parasitology Research 78, 96–102.CrossRefGoogle ScholarPubMed
Threadgold, L.T. (1984) Parasitic plathyhelminthes. pp. 132–211 in Bereiter-Hahn, J., Matoltsy, A.G. & Richards, K.S. (Eds) Biology of the tegument. Vol. 1. Invertebrates. Berlin, Heidelberg, Springer-Verlag.Google Scholar
Threadgold, L.T. & Brennan, G. (1978) Fasciola hepatica: basal infolds and associated vacuoles of the tegument. Experimental Parasitology 46, 300–316.CrossRefGoogle ScholarPubMed
Wilson, R.A. & Barnes, P.E. (1974) The tegument of Schistosoma mansoni: observations on the formation, structure and composition of cytoplasmatic inclusions in relation to tegument function. Parasitology 68, 239–258.CrossRefGoogle Scholar
Zdarska, Z., Soboleva, T.N., Valkounova, J. & Sterba, J. (1990) Ultrastructure of general body tegument of the trematode Brachylaimus aequans . Helminthologia 27, 3–9.Google Scholar