Biochemical Hallmarks of Oxidative Stress-Induced Overactivation of Xenopus Eggs

Figure 1

Morphological types of eggs observed in populations of naturally ovulated Xenopus eggs. Panels (a), (b), (c), and (d) present mature fertilization-competent, apoptotic, overactivated, and cortically contracted eggs, respectively. Panel (e) shows population of eggs matured in vitro in the presence of progesterone and aged by overnight incubation on bench. Arrows point to overactivated eggs.