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. 1976 Aug 19;262(5570):661-4.
doi: 10.1038/262661a0.

Intracellular pH and activation of sea urchin eggs after fertilisation

J D Johnson, D Epel

Intracellular pH and activation of sea urchin eggs after fertilisation

J D Johnson et al. Nature. .

Abstract

The intracellular pH of the sea urchin embryo increases 0.3 pH units between 1 and 4 min after fertilisation. The increase in pH is required for initiating development. The increase results from an exchange of extracellular Na+ for intracellular H+.

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