CHANGES OF THE MEMBRANE POTENTIAL AT THE TIME OF FERTILIZATION IN THE SEA URCHIN EGG WITH SPECIAL REFERENCE TO THE FERTILIZATION-WAVE
โ Scribed by TSUYOSHI UEHARA; KIYOSHI KATOU
- Book ID
- 108942096
- Publisher
- John Wiley and Sons
- Year
- 1972
- Tongue
- English
- Weight
- 485 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0012-1592
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A wave front of increased free calcium traversing the egg at fertilization is demonstrated in the sea urchin Lytechinus pictus. The use of the fluorescent calcium chelator fura-2 in combination with low-light-level TV microscopy and image processing allows the visualization of the Ca2+ wave front wi
## Abstract Decreased glycogen radioactivity was followed as an indicator of glycogen utilization following activation of __Strongylocentrotus purpuratus__ eggs. Within 15 minutes of exposure to sperm or ammonia, egg glycogen radioactivity decreased. The level of radioactivity in control (unfertili