Figure 2.

TEM autoradiography of thin sections of oocytes cultured from 0 hr post hCG until MI in presence of ³H-fucose, with (a) or without (b) cumulus cells. bar = 1 μm a : general heavy labeling of the ZP (Z) surface, of corona cell projections (P), and particularly of the PVS (*) and Golgi vesicles (G).b : low labeling in PVS (*) and ooplasm.