Origin and Ultrastructural Cytochemistry of the Extranucleolar Bodies at the Preovulatory Follicle Stage and during Rat Oocyte Maturation
It is now well accepted that ordered changes occur in the fine structural organization of the nucleolus during follicular growth in mammalian species. These morphological changes have been studied by many authors by both light and electron microscopy in mouse oocytes (Chouinard, 1971; 1975), in pig and bovine oocytes (Crozet et al., 1981; 1986) and in human oocytes (Zybina et al., 1984). However, the majority of these authors have been interested in the early stages of oocyte meiosis and further evolution of the nucleolus of the mammalian oocytes has been less thoroughly described. A systematic study of ultrastructural modifications which appear in the rat oocyte nucleolus during follicular growth has therefore been performed (Antoine et al., 1987).
KeywordsAntral Follicle Germinal Vesicle Follicular Growth Bovine Oocyte Oocyte Nucleus
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- Antoine N., Lepoint A., Baeckeland E. and Goessens G. 1987, Evolution of the rat oocyte nucleolus during follicular growth, Biol. Cell, 59:107.Google Scholar
- Baeckeland E., Antoine N., Lepoint A., and Goessens G. 1986, Etude des vacuoles nucléolaires observées dans les ovocytes de rat, Bull. Assoc. Anat., 70:5.Google Scholar
- Chouinard L. A., 1971, A light and electron microscope study of the nucleolus during growth of the oocyte in the prepubertal mouse, J. Cell Sei., 9:663.Google Scholar
- Chouinard L. A., 1975, A light and electron microscope study of the oocyte nucleus during development of the antral follicle in the prepubertal mouse, J. Cell Sei., 17:589.Google Scholar
- Crozet N., Motlik J., and Szollosi D. 1981, Nucleolar fine structure and RNA synthesis in porcine oocytes during the early stages of antrum formation, Biol. Cell, 41:35.Google Scholar
- Takeuchi J. K. 1984, Electron microscopic study of silver staining of nucleoli in growing oocytes of rat ovaries, Cell Tiss. Res., 236:249.Google Scholar
- Zybina E. U., Grishchenko T. A., and Semenov V. M. 1984, Ultrastructure of the fibrillar center in oocyte nuclei at diplotene stage in golden hamster, Tsitologia, 26:1246.Google Scholar