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PHYSIOLOGICAL CONSEQUENCES OF THE EXPERIMENTAL REMOVAL OF THE CHORION (MATERNAL CUTICLE) FROM NEW LAID EGGS OF THE HOUSE CRICKET, ACHETA DOMESTICUS (ORTHOPTERA: GRYLLIDAE)1

Published online by Cambridge University Press:  31 May 2012

J. E. McFarlane
J. E. McFarlane
Affiliation:
Department of Entomology, Macdonald Campus of McGill University, Ste. Anne de Bellevue, Quebec H0A 1C0
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Abstract

When new laid eggs of the house cricket are treated with a potassium biphthalate buffer (0.05 M) at pH 4.01 for 1 h, followed by a Na2CO3 solution at pH 11.0 for 22 h at room temperature, the chorion lifts off the surface of the egg; by cutting off the end of the stretched chorion, the dechorionated egg may be pushed out of the shell. Dechorionated eggs behave in a different manner towards sucrose and salt solutions than do intact eggs. These and other experimental results are discussed in relation to the physiology of water absorption.

Type
Articles
Information
The Canadian Entomologist , Volume 110 , Issue 5 , 01 May 1978 , pp. 551 - 555
Copyright
Copyright © Entomological Society of Canada 1978

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References

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