ELECTRICAL POLYSPERMY BLOCK IN SEA URCHINS: NICOTINE AND LOW SODIUM EXPERIMENTS1
- 1 June 1980
- journal article
- research article
- Published by Wiley in Development, Growth & Differentiation
- Vol. 22 (3), 503-507
- https://doi.org/10.1111/j.1440-169x.1980.00503.x
Abstract
Nicotine reduces the amplitude of the fertilization potential in sea urchin eggs, at least partly because it decreases the slope of the current voltage relation of the unfertilized egg membrane. The reduced fertilization potential amplitude provides an electrophysiological explanation for previous observations that nicotine impairs the fast block to polyspermy. The block to polyspermy is impaired by fertilization in low Na sea water, a medium which reportedly reduced fertilization potential amplitude.This publication has 17 references indexed in Scilit:
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