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Ultrastructural Cytochemistry of the Nucleolus in Rat Oocytes at the End of the Folliculogenesis
Antoine, Nadine; Lepoint, A.; Baeckeland, Edgard et al.
1988In Histochemistry, 89 (3), p. 221-6
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Abstract :
[en] Various ultrastructural changes occur during follicular growth in the rat oocyte nucleolus. The nucleolus, which has a reticulated fibrillogranular structure at the primordial and primary follicle stages, becomes entirely compact and is made up of a conspicuous and homogeneous mass at the antral follicle stage. In order to define the nature and the functions of this homogeneous mass, cytochemical methods allowing detection of nucleic acids, proteins and lipids were performed at the light microscopic and ultrastructural levels. The results obtained suggest that this nucleolar mass is probably composed of acid proteins which are not silver stained. This proteinaceous mass could be a special kind of nucleolar secretion providing material for meiotic resumption in the oocyte. Cytochemical researches now in progress should supply new information concerning the exact nature and the role of the nucleolar compact mass, which is the essential nucleolar component at the antral follicle stage and which really plays a role in the nucleolus in the first stages of embryogenesis.
Disciplines :
Anatomy (cytology, histology, embryology...) & physiology
Author, co-author :
Antoine, Nadine ;  Université de Liège - ULiège > Département de morphologie et pathologie > Histologie
Lepoint, A.
Baeckeland, Edgard ;  Université de Liège - ULiège > Relations académiques et scientifiques (Médecine)
Goessens, Guy ;  Université de Liège - ULiège > Services généraux (Faculté des sciences) > Relations académiques et scientifiques (Sciences)
Language :
English
Title :
Ultrastructural Cytochemistry of the Nucleolus in Rat Oocytes at the End of the Folliculogenesis
Publication date :
1988
Journal title :
Histochemistry
ISSN :
0301-5564
Publisher :
Springer, Germany
Volume :
89
Issue :
3
Pages :
221-6
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 21 May 2010

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