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Positively charged macromolecules prevent fertilization of sea urchin eggs

✍ Scribed by G. Czihak; I. Czihak

Book ID
105048315
Publisher
Springer
Year
1981
Tongue
English
Weight
217 KB
Volume
68
Category
Article
ISSN
0028-1042

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## Abstract β€œFertilization acid” is released from sea urchin eggs upon fertilization and decreases the pH of the surrounding seawater. In bicarbonate‐free artificial seawater flushed with nitrogen gas, the pH shift still occurs but returns to the original value in a few minutes, suggesting that the