Fertilization-Induced Changes in Membrane Fluidity of Sea Urchin Eggs

This is the authors' abstract. We don't add key points for this paper.

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.