Data/hora: 10/06/2024 02:36:38

Provedor de dados: | 104
País: | Brazil
Título: | Ultrastructure of ovarian follicular epithelium of the amazonian fish Pseudotylosurus microps (Gunther) (Teleostei, Belonidae): I. the follicular cells cycle of development
Autores: | Cruz-Landim,Carminda da; Cruz-Hofling,Maria Alice da.
Data: | 2001-03-01
Ano: | 2001
Palavras-chave: | Pseudotylosurus microps; Follicular epithelium; Ultrastructure; Teleost.
Resumo: | The present paper deals with the changes on ultrastructural features of the follicular cells along the growth of the oocyte of Pseudotylosurus microps (Gunther, 1868). The epithelium pass from single squamous to pseudostratified and finally cylindric. Remarkable are the changes in the nuclear shapes, the increasing amount of rough endoplasmic reticulum and the formation of large lipid deposits in the follicular cells by the end of vitellogenic phase. Very peculiar intercellular deposits forms between the perinucleolar and vitellogenic phase of oocyte maturation. Although largely referred to in the specialized literature, our attempts to correlate the follicular cells changes with the formation of the oocyte envelopes or even with an endocrine function are not supported by conclusive evidences in the present paper.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000100010
Editor: | Sociedade Brasileira de Zoologia
Relação: | 10.1590/S0101-81752001000100010
Formato: | text/html
Fonte: | Revista Brasileira de Zoologia  v.18 n.1 2001
Fonte: | info:eu-repo/semantics/openAccess