No CrossRef data available.
Article contents
Ultrastructural aspects of feeding and secretion–excretion by the equine parasite Strongylus vulgaris
Published online by Cambridge University Press: 11 April 2024
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.
Light, scanning, and transmission electron microscopy were employed to provide further data on the putative origins of the immunogenic secretory–excretory product (ESP) of Strongylus vulgaris (Looss 1900). The sharply delineated but superficial attachment to the equine caecum by the mouth leaves behind an oval area devoid of epithelial cells. Attachment does not extend deeply enough to reach the muscularis mucosa layer of the equine intestine. The progressive digestion of the ingested plug of tissue (epithelial cells, blood cells and mucous) was visualized. The coelomocytes, floating cells and membranous structures located in the pseudocoelom and intimately associated with the digestive, excretory and reproductive systems, and with the somatic muscles are described. The secretory–excretory system comprises two, ventrally-located, secretory–excretory glands connected to tubular elements. These glands synthesize granules of various sizes and densities that are delineated.
- Type
- Review Article
- Information
- Copyright
- Copyright © Cambridge University Press 1999
References
Abdul Rahman, S. & Waddell, A.H. (1980) Comparative study of the ultrastructure of the intestine of species of the genus Strongylus and species in subfamily Cyathostominae from the horse. Mysore Journal of Agricultural Sciences 14, 549–556.Google Scholar
Bird, A.F. & Bird, J. (1991) The structure of nematodes. 2nd edn. London, Academic Press.Google Scholar
Caffrey, C. & Ryan, M.F. (1994) Characterisation of proteolytic activity of excretory–secretory products from adult Strongylus vulgaris. Veterinary Parasitology 52, 285–296.CrossRefGoogle ScholarPubMed
Chitwood, B.G. & Chitwood, M.B. (Eds) (1974) An introduction to nematology. 213 pp. Baltimore, Maryland, Monumental Printing Co.Google Scholar
Enigk, K. & Grittner, I. (1952) Zur Morphologie von Strongylus vulgaris (Nematoda). Zeitschrift für Parasitenkunde 15, 267–282.CrossRefGoogle ScholarPubMed
Lee, D.L. (1962) The distribution of esterase enzymes in Ascaris lumbricoides. Parasitology 52, 241–260.CrossRefGoogle Scholar
Lee, D.L. (1965) The cuticle of adult Nippostrongylus brasiliensis. Parasitology 55, 173–181.CrossRefGoogle ScholarPubMed
Lee, D.L. (1970) The fine structure of the S–E system in adult Nippostrongylus brasiliensis (Nematoda) and a suggested function for the S–E glands. Tissue and Cell 2, 225–231.CrossRefGoogle Scholar
Maizels, R.M. & Page, A.P. (1990) Surface associated glycoproteins from Toxocara canis larval parasites. Acta Tropica 47, 355–364.CrossRefGoogle ScholarPubMed
Maizels, R.M., Meghi, M. & Ogilvie, B.M. (1983) Restricted sets of parasite antigens from the surface of different stages and sexes of the nematode Nippostrongylus brasiliensis. Immunology 48, 107.Google Scholar
McLaren, D.J. (1974) The anterior glands of adult Necator americanus. 1. Ultrastructural studies. International Journal for Parasitology 4, 25–37.CrossRefGoogle ScholarPubMed
McLaren, D.J., Burt, J. & Ogilvie, B.M. (1974) The anterior glands of adult Necator americanus (Nematoda: Strongyloidea). II. Cytochemical and functional studies. International Journal for Parasitology 4, 39–46.CrossRefGoogle ScholarPubMed
Mehlhorn, H. (1988) Parasitology in focus. Facts and trends. Berlin, Springer-Verlag.CrossRefGoogle Scholar
Mobarak, M.S. (1995) Ultrastructural and immunological studies of the equine nematode Strongylus vulgaris (Looss 1900). PhD thesis, University College Dublin.Google Scholar
Mobarak, M. & Ryan, M.F. (1998a) An immunohistochemical investigation of the adult stage of the equine parasite Strongylus vulgaris. Journal of Helminthology 72, 159–166.CrossRefGoogle ScholarPubMed
Mobarak, M. & Ryan, M.F. (1998b) Ultrastructure of the buccal capsule of the equine nematode Strongylus vulgaris with special to the dorsal gutter. Journal of Helminthology 72, 167–177.CrossRefGoogle Scholar
Oglivie, B.M., McLaren, D.J. & Worms, R.J. (1975) Studies with Necator americanus maintained in hamsters. pp. 55–60 in Nuclear techniques in helminthology research. International Atomic Energy Agency, Vienna.Google Scholar
Ogilvie, B.M., Rothwell, T.L.W., Bremner, K.C., Schnitzerling, H.J., Nolan, J. & Keith, R.K. (1973) Acetylcholinesterase secretion by parasitic nematodes. I. Evidence for secretion of the enzyme by a number of nematode species. International Journal for Parasitology 3, 589–598.CrossRefGoogle Scholar
Peregrine, P. (1973) Observations on arcade cells and pseudocoelomocytes in some oxyuroid nematodes parasitic in cockroaches. Parasitology 66, 165–180.CrossRefGoogle Scholar
Pritchard, D.I. (1986) Antigens of gastrointestinal nematodes. Transactions of the Royal Society of Tropical Medicine and Hygiene 80, 728–734.CrossRefGoogle ScholarPubMed
Romanowski, R.D., Thompson, D.E. & Madden, P.A. (1971) The secretory nature of the S–E gland cells of Stephanurus dentatus. 1. Morphology and histochemistry. Proceedings of the Helminthological Society of Washington 38, 143–149.Google Scholar
Silbertstein, D.S. & Despommier, D.D. (1984) Antigens from Trichinella spiralis that induce a protective response in the mouse. Journal of Immunology 132, 898–904.CrossRefGoogle Scholar
Waddell, A.H. (1968) The S–E system of the kidney worm Stephanurus dentatus (Nematoda). Parasitology 58, 907–919.CrossRefGoogle Scholar
Wright, D.J. & Newall, D.R. (1976) Nitrogen excretion, osmotic and ionic regulation in nematodes. pp. 163–201 in Croll, N.A. (Ed.) The organisation of nematodes. London, Academic Press.Google Scholar
Wright, K.A., Dick, T.A. & Hamada, G.S. (1972) The identity of pseudocoelomic membranes and connective tissue in some nematodes. Zeitschrift für Parasitenkunde 39, 1–16.CrossRefGoogle ScholarPubMed
You have
Access