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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Johnson, J., Epel, D. & Paul, M. Intracellular pH and activation of sea urchin eggs after fertilisation. Nature 262, 661–664 (1976). https://doi.org/10.1038/262661a0
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DOI: https://doi.org/10.1038/262661a0
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