In the Egg of the Ascidian Phallusia mammillata, Removal of External Ca2+ Modifies the Fertilization Potential, Induces Polyspermy, and Blocks the Resumption of Meiosis

Mercuric ions impair the fertilization p

Mercuric ions impair the fertilization potential, the resumption of meiosis, the formation of male pronucleus, and increase polyspermy, in the egg of the ascidianPhallusia mammillata

✍ Franchet, Cécile; Goudeau, Marie; Goudeau, Henri 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 272 KB

In the sea squirt Phallusia mammillata, fertilization occurs externally in the seawater surrounding the adult. The impact of mercuric ions, one of the most toxic environmental pollutants, was investigated on the functioning of the ionic channels of unfertilized or fertilized egg membrane and on the