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Ultrastructural cytochemistry of the nucleus and nucleolus in growing rabbit oocytes
P Sutovský1, L Jelínková, L Antalíková
1Institute of Animal Physiology and Genetics, Libĕchov, Czech Republic.
Biology of the Cell
|January 1, 1993
Abstract:
Ultrastructural changes of the germinal vesicle during the growth of rabbit oocytes were studied by means of light and electron microscopy, 3H-uridine autoradiography, Ag-NOR staining and E-PTA staining. Particular interest was paid to the nucleologenesis and condensation of chromatin. In contrast to other mammalian species, chromosome condensation in rabbit oocytes occurred concomitantly with rRNA synthesis-dependent nucleolar compaction and preceded nuclear envelope breakdown and resumption of meiosis.