Ultrastructure of ovarian follicular epithelium of the amazonian fish Pseudotylosurus microps (Gunther) (Teleostei, Belonidae): I. the follicular cells cycle of development
Autor(a) principal: | |
---|---|
Data de Publicação: | 2001 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S0101-81752001000100010 http://hdl.handle.net/11449/212647 |
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. |
id |
UNSP_429182654363ee45973c7b5b11365e7b |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/212647 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Ultrastructure of ovarian follicular epithelium of the amazonian fish Pseudotylosurus microps (Gunther) (Teleostei, Belonidae): I. the follicular cells cycle of developmentPseudotylosurus micropsfollicular epitheliumultrastructureteleostThe 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.Universidade Estadual Paulista, Instituto de BiociênciasUniversidade Estadual de Campinas, Instituto de BiologiaUniversidade Estadual Paulista, Instituto de BiociênciasSociedade Brasileira de ZoologiaUniversidade Estadual Paulista (Unesp)Universidade Estadual de Campinas (UNICAMP)Cruz-landim, Carminda Da [UNESP]Cruz-hofling, Maria Alice Da2021-07-14T10:43:08Z2021-07-14T10:43:08Z2001-03info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article99-109application/pdfhttp://dx.doi.org/10.1590/S0101-81752001000100010Revista Brasileira de Zoologia. Curitiba, PR, Brazil: Sociedade Brasileira de Zoologia, v. 18, n. 1, p. 99-109, 2001.0101-8175http://hdl.handle.net/11449/21264710.1590/S0101-81752001000100010S0101-81752001000100010S0101-81752001000100010.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Brasileira de Zoologiainfo:eu-repo/semantics/openAccess2023-11-24T06:14:22Zoai:repositorio.unesp.br:11449/212647Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-24T06:14:22Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Ultrastructure of ovarian follicular epithelium of the amazonian fish Pseudotylosurus microps (Gunther) (Teleostei, Belonidae): I. the follicular cells cycle of development |
title |
Ultrastructure of ovarian follicular epithelium of the amazonian fish Pseudotylosurus microps (Gunther) (Teleostei, Belonidae): I. the follicular cells cycle of development |
spellingShingle |
Ultrastructure of ovarian follicular epithelium of the amazonian fish Pseudotylosurus microps (Gunther) (Teleostei, Belonidae): I. the follicular cells cycle of development Cruz-landim, Carminda Da [UNESP] Pseudotylosurus microps follicular epithelium ultrastructure teleost |
title_short |
Ultrastructure of ovarian follicular epithelium of the amazonian fish Pseudotylosurus microps (Gunther) (Teleostei, Belonidae): I. the follicular cells cycle of development |
title_full |
Ultrastructure of ovarian follicular epithelium of the amazonian fish Pseudotylosurus microps (Gunther) (Teleostei, Belonidae): I. the follicular cells cycle of development |
title_fullStr |
Ultrastructure of ovarian follicular epithelium of the amazonian fish Pseudotylosurus microps (Gunther) (Teleostei, Belonidae): I. the follicular cells cycle of development |
title_full_unstemmed |
Ultrastructure of ovarian follicular epithelium of the amazonian fish Pseudotylosurus microps (Gunther) (Teleostei, Belonidae): I. the follicular cells cycle of development |
title_sort |
Ultrastructure of ovarian follicular epithelium of the amazonian fish Pseudotylosurus microps (Gunther) (Teleostei, Belonidae): I. the follicular cells cycle of development |
author |
Cruz-landim, Carminda Da [UNESP] |
author_facet |
Cruz-landim, Carminda Da [UNESP] Cruz-hofling, Maria Alice Da |
author_role |
author |
author2 |
Cruz-hofling, Maria Alice Da |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Estadual de Campinas (UNICAMP) |
dc.contributor.author.fl_str_mv |
Cruz-landim, Carminda Da [UNESP] Cruz-hofling, Maria Alice Da |
dc.subject.por.fl_str_mv |
Pseudotylosurus microps follicular epithelium ultrastructure teleost |
topic |
Pseudotylosurus microps follicular epithelium ultrastructure teleost |
description |
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. |
publishDate |
2001 |
dc.date.none.fl_str_mv |
2001-03 2021-07-14T10:43:08Z 2021-07-14T10:43:08Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/S0101-81752001000100010 Revista Brasileira de Zoologia. Curitiba, PR, Brazil: Sociedade Brasileira de Zoologia, v. 18, n. 1, p. 99-109, 2001. 0101-8175 http://hdl.handle.net/11449/212647 10.1590/S0101-81752001000100010 S0101-81752001000100010 S0101-81752001000100010.pdf |
url |
http://dx.doi.org/10.1590/S0101-81752001000100010 http://hdl.handle.net/11449/212647 |
identifier_str_mv |
Revista Brasileira de Zoologia. Curitiba, PR, Brazil: Sociedade Brasileira de Zoologia, v. 18, n. 1, p. 99-109, 2001. 0101-8175 10.1590/S0101-81752001000100010 S0101-81752001000100010 S0101-81752001000100010.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista Brasileira de Zoologia |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
99-109 application/pdf |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Zoologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Zoologia |
dc.source.none.fl_str_mv |
SciELO reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965052894183424 |