Abstract
ELECTRON microscopy has provided evidence for a series of anatomically distinct stages in the process of fertilization. In the polychaete worm Hydroides hexagonus, Colwin and Col win1,2 have described how production of the acrosome filament is followed by fusion of the gamete membranes and passage of the male pronucleus into the egg cytoplasm. Apart from this anatomical description, little is known of the early stages of fertilization. We now present kinetic evidence for at least one intermediate stage in the fertilization of sea urchin eggs.
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References
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BAKER, P., PRESLEY, R. Kinetic Evidence for an Intermediate Stage in the Fertilization of the Sea Urchin Egg. Nature 221, 488–490 (1969). https://doi.org/10.1038/221488b0
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DOI: https://doi.org/10.1038/221488b0
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