Reference : Ultrastructural distribution of DNA within the ring-shaped nucleolus of human resting...
Scientific journals : Article
Life sciences : Anatomy (cytology, histology, embryology...) & physiology
http://hdl.handle.net/2268/29303
Ultrastructural distribution of DNA within the ring-shaped nucleolus of human resting T lymphocytes.
English
Vandelaer, M. [> > > >]
Thiry, Marc mailto [Université de Liège - ULg > Département des sciences de la vie > Biologie cellulaire >]
Goessens, Guy mailto [Université de Liège - ULg > Services généraux (Faculté des sciences) > Relations académiques et scientifiques (Sciences) >]
1993
Experimental Cell Research
Academic Press
205
2
430-2
Yes (verified by ORBi)
International
0014-4827
1090-2422
Orlando
FL
[en] Cell Nucleolus/ultrastructure ; Chromatin/ultrastructure ; DNA/metabolism ; Humans ; T-Lymphocytes/ultrastructure
[en] The precise distribution of DNA within the resting human T lymphocyte nucleolus has been investigated, at the ultrastructural level, by cytochemical and molecular immunocytochemical techniques. The nucleolus is partially enveloped by a layer of condensed chromatin which, at several places, penetrates into the nucleolar body until in close contact with the fibrillar centers. Morphometric analysis reveals that 32% of the fibrillar center surface is essentially occupied by condensed chromatin. Using the in situ terminal deoxynucleotidyl transferase-immunogold procedure for detecting DNA, we further show that evident label is exclusively found over the condensed chromatin and over the fibrillar centers, whereas no significant label is detected over the dense fibrillar component of the nucleolus.
http://hdl.handle.net/2268/29303
10.1006/excr.1993.1110

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