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The formation of the first-stage cuticle within the egg of Trichostrongylus colubriformis

Published online by Cambridge University Press:  06 April 2009

D. A. Wharton  and
L. W. Bone
D. A. Wharton
Affiliation:
Department of Zoology, University of Otago, P.O. Box 56, Dunedin, NZ
L. W. Bone
Affiliation:
Regional Parasite Research Laboratory, Agricultural Research Service, US Department of Agriculture, P.O. Box 952, Auburn, Alabama 36830, USA
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Summary

The ultrastructure of the formation of the first-stage cuticle within the egg of Trichostrongylus colubriformis is described. The first indication of cuticle formation was the formation of the epicuticle external to the epidermal plasma membrane. This becomes thickened to form the epicuticle of the fully formed cuticle. Microtubules and microfilaments associated with the epidermal plasma membrane were observed during the early phases of cuticle formation. The basal zone was secreted into the space between the epicuticle and the epidermal plasma membrane, followed by the formation of the cortical zone. The basal zone had a striated appearance during the earliest stages of its formation.

Type
Research Article
Information
Parasitology , Volume 97 , Issue 3 , December 1988 , pp. 459 - 467
Copyright
Copyright © Cambridge University Press 1988

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