Abstract
EXPERIMENTS have revealed a surprising and discouraging lack of uniformity in the physiological signs of fertilization in different types of eggs. In sea-urchin eggs, oxygen consumption increases after fertilization1 ; in Cumingia and Chœtopterus eggs, oxygen consumption is stated to decrease after fertilization2, though this might be due to acid production masking an increase in oxygen consumption. Acid production during the fertilization reaction, first noted by Ashbel3, has only been reported in sea-urchin eggs, though as Gray first pointed out, the sudden evolution of carbon dioxide which results from the interaction of this acid and the bicarbonate in the sea water may mask the true oxygen consumption if the carbon dioxide absorbent does not act quickly enough. The experimenter may therefore miss the acid production and 'measure' a low oxygen consumption-rate.
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ROTHSCHILD, L. PHYSIOLOGY OF FERTILIZATION. Nature 157, 720–722 (1946). https://doi.org/10.1038/157720a0
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DOI: https://doi.org/10.1038/157720a0
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