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Fine structural aspects of an embryo-adapted strain of Eimeria tenella in the epithelial cells of the chorio-allantoic membrane

Published online by Cambridge University Press:  06 April 2009

I. G. Lücht ,
B. J. Millard  and
E. G. Scholtyseck
I. G. Lücht
Affiliation:
Zoologisches Institut der Universität Bonn Poppelsdorfer Schloss, D–5300 Bonn 1, F.R.G.
B. J. Millard
Affiliation:
Houghton Poultry Research Station, Houghton, Huntingdon, Cambs. PE17 2DA
E. G. Scholtyseck
Affiliation:
Zoologisches Institut der Universität Bonn Poppelsdorfer Schloss, D–5300 Bonn 1, F.R.G.
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Summary

The fine structure and development of the endogenous stages of an embryo-adapted strain of Eimeria tenella in chicken embryos is described. First-generation merozoites were formed by endodyogeny in uninucleate developmental stages as well as schizogony and the endoplasmic reticulum of merozoites of the second-generation schizonts appeared as a circular structure, often enclosing other organelles. In contrast to the parent strain, development of the second-generation schizonts was restricted to cells of epithelial origin. These observations confirm that the complete endogenous cycle of the embryo-adapted strain of E. tenella is restricted to epithelial cells of the chorio-allantoic membrane (CAM) and that no major ultrastructural changes have occurred as a result of repeated embryo passage.

Type
Research Article
Information
Parasitology , Volume 76 , Issue 2 , April 1978 , pp. 185 - 191
Copyright
Copyright © Cambridge University Press 1978

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References

REFERENCES

Hammond, D. M., Clark, W. N. & Miner, M. L. (1961). Endogenous phase of the life-cycle of Eimeria auburnensis in calves. Journal of Parasitology 47, 591–6.CrossRefGoogle ScholarPubMed
Lee, D. L. & Long, P. L. (1972). An electron microscopal study of Eimeria tenella grown is the liver of the chick embryo. International Journal for Parasitology 2, 55–8.Google Scholar
Lee, D. L. & Millard, B. J. (1972). Fine structural changes in Eimeria tenella, from infections in chick embryos and chickens, after exposure to the anticoccidial drug robenidine. Parasitology 65, 309–16.Google Scholar
Long, P. L. (1965). Development of Eimeria tenella in avian embryos. Nature, London 208, 509–10.Google Scholar
Long, P. L. (1966). The growth of some species of Eimeria in avian embryos. Parasitology 56, 575–81.Google Scholar
Long, P. L. (1970). Some factors affecting the severity of infection with Eimeria tenella in chicken embryos. Parasitology 60, 435–47.CrossRefGoogle ScholarPubMed
Long, P. L. (1971). Schizogony and gametogony of Eimeria tenella in the liver of chick embryos. Journal of Protozoology 16, 155–65.Google Scholar
Long, P. L. (1972). Eimeria tenella: reproduction, pathogenicity and immunogenicity of a strain maintained in chick embryos by serial passage. Journal of Comparative Pathology and Therapeutics 82, 429–37.CrossRefGoogle ScholarPubMed
Long, P. L. (1973 a). Endogenous stages of a ‘chick embryo-adapted’ strain of Eimeria tenella. Parasitology 66, 55–62.Google Scholar
Long, P. L. (1973 b). Pathology and pathogenicity of coccidial infections. In The Coccidia (ed. Hammond, D. M. and Long, P. L.), pp. 254–87. Baltimore: University Park Press; London: Butterworths.Google Scholar
Marquardt, W. C. (1973). Host and site specificity in the coccidia. In The Coccidia (ed. Hammond, D. M. and Long, P. L.), pp. 23–43. Baltimore: University Park Press; London: Butterworths.Google Scholar
McLaren, D. J. (1969). Observations on the fine structural changes associated with schizogony and gametogony in Eimeria tenella. Parasitology 59, 563–74.CrossRefGoogle ScholarPubMed
Michael, E. (1975). Fine structure and development of schizonts, merozoites and macrogamonts of Eimeria acervulina in the goblet cells of the duodenal epithelium of experimentally infected birds. Parasitology 70, 223–9.CrossRefGoogle ScholarPubMed
Piekarski, G., Pelster, B. & Witte, H. M. (1971). Endopolygenie bei Toxoplasma gondii. Zeitschrift für Parasitenkunde 36, 122–30.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.CrossRefGoogle ScholarPubMed
Ryley, J. F. (1969). Ultrastructural studies on the sporozoite of Eimeria tenella. Parasitology 59, 67–72.Google Scholar
Scholtyseck, E. (1953). Beitrag zur Kenntnis des Entwicklungsganges des Hühnercoccids Eimeria tenella. Archiv für Protistenkunde 98, 415–66.Google Scholar
Scholtyseck, E. (1973). Die Deutung von Endodyogenie und Schizogonie bei Coccidien und anderen Sporozoen. Zeitschrift für Parasitenkunde 42, 87–104.CrossRefGoogle Scholar
Scholtyseck, E., Gönnert, R. & Haberkorn, A. (1969). Die Feinstruktur des Makrogameten des Hühnercoccids Eimeria tenella. Zeitschrift für Parasitenkunde 33, 31–43.CrossRefGoogle Scholar
Scholtyseck, E., Rommel, A. S. & Heller, A. (1969). Licht-und elektronenmikroskopische Untersuchungen zur Bildung der Oocystenhülle bei Eimeria (Eimeria perforans, E. stiedae und E. tenella). Zeitschrift für Parasitenkunde 31, 289–98.Google Scholar
Strout, R. & Scholtyseck, E. (1970). The ultrastructure of first generation development of Eimeria tenella (Railliet and Lucet, 1891) Fantham, 1909 in cell cultures. Zeitschrift für Parasitenkunde 35, 87–96.CrossRefGoogle ScholarPubMed