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Fertilization-Induced Changes in Membrane Fluidity of Sea Urchin Eggs

Judith Campisi and Carl J. Scandella
Science
New Series, Vol. 199, No. 4335 (Mar. 24, 1978), pp. 1336-1337
Stable URL: http://www.jstor.org/stable/1745387
Page Count: 2
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Abstract

By use of a spin label fatty acid, 5-doxylstearate, an increase in bulk membrane fluidity was observed after fertilization of two species of sea urchin eggs. Eggs partially activated by ammonia showed a similar effect. The data suggest that a structural change involving membrane lipids accompanies activation.

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