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- Title
Ultrastructure of Centrifuged Bovine Oocyte-Cumulus Complexes after Pre-treatment with Cytoskeletal Relaxant.
- Authors
Isachenko, V.; Alabart, J. L.; Michelmann, H. W.; Bezugly, N.; Isachenko, E.; Soler, C.; Nawroth, F.
- Abstract
The objective of this study was the electron microscope examination of the localization of lipid droplets, mitochondria and other intracellular organelles in bovine oocytes and cumulus cells after Cytochalasin B pre-treatment and ultra-centrifugation. Bovine (n=180) oocyte cumulus complexes on a germinal vesicle stage were treated with 5 μg/ml Cytochalasin B at 38.5°C for 10–15 min. They were then centrifuged at 15 800 g and fixed at 39°C immediately after centrifugation in 3% glutaraldehyde with 0.5% formaldehyde for the microscopic examinations. The centrifugal pole of the oocytes was filled with mitochondria. The centripetal part contained lipid granules and vesicles. Cytoplasm of low density was located in the equatorial region. Hyaloplasm with spontaneously formed membrane and non-membrane vacuoles was located in a supra-equatorial zone of the oocytes. In the cumulus cells the lipid vesicles formed one dark mass in the centripetal pole. The nuclei of these cells were deformed and vacuolization of the cytoplasm was noted.
- Subjects
BLOOD cells; LIPIDS; MITOCHONDRIA; CYTOLOGY
- Publication
Anatomia, Histologia, Embryologia: Journal of Veterinary Medicine Series C, 2001, Vol 30, Issue 3, p163
- ISSN
0340-2096
- Publication type
Article
- DOI
10.1046/j.1439-0264.2001.00310.x