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Some observations on the sexual differentiation of Eimeria tenella using single sporozoite infections in chicken embryos*

Published online by Cambridge University Press:  06 April 2009

M. W. Shirley  and
B. J. Millard
M. W. Shirley
Affiliation:
Houghton Poultry Research Station, Houghton, Huntingdon PE17 2DA, Cambs.
B. J. Millard
Affiliation:
Houghton Poultry Research Station, Houghton, Huntingdon PE17 2DA, Cambs.
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Extract

Unsporulated oocysts were recovered from the allantoic cavity of 5 chicken embryos inoculated with a single sporozoite of Eimeria tenella; some of these oocysts sporulated. Both macrogametes and microgametes are required for the formation of viable oocysts. The results conclusively demonstrate the bisexual nature of the sporozoite, suggest that sexual differentiation is influenced by environmental factors, and show that true clones of Eimeria can be established from individual sporozoites.

Type
Research Article
Information
Parasitology , Volume 73 , Issue 3 , December 1976 , pp. 337 - 341
Copyright
Copyright © Cambridge University Press 1976

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