Hostname: page-component-5c6d5d7d68-7tdvq Total loading time: 0 Render date: 2024-08-19T00:45:24.411Z Has data issue: false hasContentIssue false
  • English
  • Français

Morphological and histochemical studies on the larval stages of Metastrongylus spp. (lungworms of swine) in the earthworm intermediate host, Eisenia foetida, Savigny 1826

Published online by Cambridge University Press:  06 April 2009

Allan J. Probert
Allan J. Probert
Affiliation:
Department of Agricultural and Forest Zoology, University College of North Wales, Bangor
Get access Rights & Permissions [Opens in a new window]

Extract

By means of serial sections of experimentally infected Eisenia foetida with Metastrongylus spp. The distribution of larvae within the host has been determined. The exact position in the host intestine at which larvae penetrate has been shown to be the crop. The preferred site for localization and development of the parasite has further been shown to be the lamellar sinuses of the calciferous glands, although larvae were recovered from the dorsal blood vessel, hearts and perienteric blood sinuses. The way in which larvae pass from the gut to their definitive positions in the host has been discussed and it is supposted that this is determined by the configuration of the blood system rather than by a predilection for an environment low in free carbon dioxide. The pathology of infection and the distribution of alkaline and acid phosphatases, lipases, non-specific esterases RNA, DNA and haemaglobin have been described. The distribution of phosphatases in the gut is suggested to be concerned in the uptake of nutrients. The presence of an active zone of enzyme activity in the subcuticular regions of the parasite has been shown and the significance of this discussed. The parasite has been shown to feed directly on host blood.

Type
Research Article
Information
Parasitology , Volume 59 , Issue 2 , May 1969 , pp. 269 - 277
Copyright
Copyright © Cambridge University Press 1969

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Cavier, R. & Savel, J. (1952). La synthese du glycogéne à partir de quelques gluoides et de certains de leurs dérives, par l'acaris du pore, Ascaris lumbricoides (Linné, 1758). C. r. hebd. Séanc. Acad. Sci., Paris 234, 2562–4.Google Scholar
Chitwood, B. G. & Chitwood, M. B. (1950). An Introduction to Nematology, 213 pp. Baltimore: Chitwood, B. G.Google Scholar
Cobb, N. A. (1923). The pharynx and alimentary canal of the hookworm larva Necator americanus. J. agric. Res. 25, 359–61.Google Scholar
Dusanic, D. G. (1959). Histochemical observations of alkaline phosphatase in Schistosoma mansoni. J. infect. Dis. 105, 1–8.CrossRefGoogle ScholarPubMed
Hobmaier, A. & Hobmaier, M. (1929). Die entwicklung der larve des lungenwürmes Metastrongylus elongatus (Strongylus paradoxus) des schweines und ihr invasionweg, sowie vorläufige mitteilung über die entwicklung von Choerostrongylus brevivaginatus Münch. tierärtztl. Wschr. 80, 365–9.Google Scholar
Marsh, C. L. & Kelley, G. W. (1958). Studies on helminth enzymology. I. Inorganic pyrophosphatase activity in some helminth parasites of domestic animals. Expl Parasit. 7, 366–73.CrossRefGoogle ScholarPubMed
Marsh, C. L. & Kelley, G. W. (1959). Studies on helminth enzymology. II. Properties of an organic pyrophosphatase from Ascaridia galli a nematode parasite of chickens. Expl Parasit. 8, 274–85.CrossRefGoogle Scholar
Nimmo-Smith, R. H. & Standen, O. D. (1963). Phosphomonoesterases of Schistosoma mansoni. Expl Parasit. 13, 305–22.CrossRefGoogle ScholarPubMed
Pearse, A. G. E. (1960). Histochemistry: Theoretical and Applied, 998 pp. 2nd ed.London: A. Churchill Ltd.Google Scholar
Schwartz, B. & Alicata, J. (1931). Concerning the life history of lungworms of swine. J. Parasit. 19, 21–7.CrossRefGoogle Scholar
Schwartz, B. & Alicata, J. E. (1934). Life history of lungworms parasitic in swine. Tech. Bull. U.S. Dep. Agric. 456, 1–24.Google Scholar
Schwartz, B. & Porter, D. A. (1938). The localization of swine lungworm larvae in the earthworm Helodrilus foetidus. Livro Jubilar du Proffessor Lauro Travassos, Rio de Janerio pp. 429–40.Google Scholar
Stekhoven, J. H. S. (1926). New facts concerning the larvae of Anclystoma caninum and Necator americanus. Proc. 3rd pan-Pacif. Sci. Congr. Tokyo pp. 2577–80.Google Scholar
Van Gansen-Semal, P (1959). Structure des glandes claciques d'Eisenia foetida. Sav. Bull. biol. Fr. Belg. 83 38–63.Google Scholar
Von Brand, T. (1966). Biochemistry of Parasites, 429 pp. London: Academic Press.Google Scholar
Von Schuckmann, W. & Zunker, N. (1930). Zur Entwicklung der Schweine-Lungwürmer. Z. Infectkrankh. parasit. Krankh. Hyg. Haustiere 39 233–46.Google Scholar
Weatherly, N. F., Hansen, M. F. & Moser, H. C. (1963). In vitro uptake of C14 labelled alanine and glucose by Ascaridia galli (Nematoda) of chickens. Expl Parasit. 14 37–48.CrossRefGoogle ScholarPubMed