Wave of cortical actin polymerization in the sea urchin egg
β Scribed by Yonemura, Shigenobu ;Mabuchi, Issei
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 992 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0886-1544
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Elongation of microvilli and formation of actin filaments after treatment with a phorbol ester, TPA, were investigated in unfertilized eggs of Hemicentrotus pulcherrimus. Microvilli on the egg surface were examined by scanning electron microscopy. Actin filaments in the cortical layer of the eggs we
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 Cortical granule discharge has been separated from Na^+^ββdependent acid release and the increase of protein synthesis in sea urchin eggs. When 2% egg suspensions are inseminated or treated with the ionophore A23187 in normal sea water, cortical granule discharge is induced and the pH o