Oocyte-sperm interactions.

  title={Oocyte-sperm interactions.},
  author={Edda T{\"o}pfer-Petersen and A M Petrounkina and Mahnaz Ekhlasi-Hundrieser},
  journal={Animal reproduction science},
The penetration of the zona pellucida is a crucial step during fertilization. Spermatozoa that are unable to recognize and bind to the zona pellucida glycoproteins or respond to the zona pellucida by undergoing the acrosome reaction fail to fertilize the egg. In most mammalian species, after entering the fallopian tube sperm are stored in the isthmic part of the oviduct under conditions that maintain sperm viability and synchronize both sperm transport and the process of acquisition of… CONTINUE READING