Ultrastructure of ovarian follicular epithelium of the Amazonian fish Pseudotylosurus microps (Teleostei: Belonidae): morphological and histochemical characterization of the intercellular deposits

The present paper reports the presence of great quantities of electrondense intercellular material in the follicular epithelium of P. microps. The material apparently is uptaken from circulation and enter the follicle through the intercellular spaces accumulating in the epithelial median-apical inte...

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Bibliographic Details
Published in:Brazilian journal of biology 2001-02, Vol.61 (1), p.133-140
Main Authors: da Cruz-Landim, C, Cruz-Höfling, M A
Format: Article
Language:English
Subjects:
Animals
Chorion - ultrastructure
Epithelium - ultrastructure
Female
Fishes - anatomy & histology
Histocytochemistry
Microscopy, Electron
Oocytes - ultrastructure
Ovarian Follicle - ultrastructure
Pseudotylosurus microps
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Summary:The present paper reports the presence of great quantities of electrondense intercellular material in the follicular epithelium of P. microps. The material apparently is uptaken from circulation and enter the follicle through the intercellular spaces accumulating in the epithelial median-apical intercellular spaces and in perioocytic space. The accumulation starts in the early growth of the primary oocyte and proceed until vitellogenesis. The possible chemical nature and function of the deposits are discussed.
ISSN:1519-6984