A Channel Model for Development of the Fertilization Membrane in Sea Urchin Eggs

  • Gerald Ehrenstein
  • Richard FitzHugh
Part of the Series of the Centro de Estudios Científicos de Santiago book series (SCEC)


The channels we consider in this chapter have not yet been observed. They are part of a model we have developed to describe the increase in cytosolic calcium that occurs within an egg following fertilization. Before describing the model, it is useful to provide some background. First, we outline the processes that occur following fertilization of a sea urchin egg, in order to put into context the role of the increase in cytosolic calcium. Then we summarize the experimental evidence that guided the development of the model. Finally, we describe the model in words and in equations and indicate some of its predictions.


Free Calcium Cytosolic Calcium Cytosolic Free Calcium Cytosolic Calcium Concentration Theoretical Test 
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Copyright information

© Plenum Press, New York 1986

Authors and Affiliations

  • Gerald Ehrenstein
    • 1
  • Richard FitzHugh
    • 1
  1. 1.Laboratory of Biophysics, NINCDSNational Institutes of HealthBethesdaUSA

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