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Ultrastructural and functional variations in the spermatid nucleolus during spermiogenesis in the mouse.
- Source :
-
Cell differentiation [Cell Differ] 1985 Feb; Vol. 16 (1), pp. 51-61. - Publication Year :
- 1985
-
Abstract
- The localization, structure, and activity of the nucleolus-organizers (NORs) were studied during spermiogenesis in the mouse by light and electron microscopy procedures including NOR-silver-staining and actinomycin D treatment. After the two meiotic divisions the NORs resume their activity during the Golgi phase of spermatid differentiation (steps 1-3), and the nucleolus displays a specific 'padlock' structure containing the fibrillar components of an active nucleolus. This activity drops during the cap phase (steps 4-7) during which the nucleolus undergoes a segregation process of its components. No nucleolar structure is visible during the acrosomal and maturation phases of spermatid differentiation.
Details
- Language :
- English
- ISSN :
- 0045-6039
- Volume :
- 16
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Cell differentiation
- Publication Type :
- Academic Journal
- Accession number :
- 3986916
- Full Text :
- https://doi.org/10.1016/0045-6039(85)90607-4