Cortical and zona reactions of heat-activated mouse eggs.

نویسندگان

  • A Komar
  • M Kujawa
چکیده

Oocytes collected from superovulated Swiss albino mice were activated by heat-shock and/or fertilized in vitro. Electron microscopy showed that the cortical reaction in heat-treated eggs was incomplete. Digestion of the zona pellucida of untreated, heat-treated and fertilized eggs by pronase showed that zona pellucida hardening did occur but was weaker in heat-treated than in fertilized eggs. Fertilizability of heat-treated eggs decreased 1.5 h after heating. We concluded that, in heat-activated eggs, changes occur at the zona and plasmalemma but they are not identical with those in fertilized eggs.

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عنوان ژورنال:
  • Journal of reproduction and fertility

دوره 73 2  شماره 

صفحات  -

تاریخ انتشار 1985