Morphology of the micropyle and oocyte surface of piracanjuba, Brycon orbignyanus (Osteichthyes Characidae), with scanning electron microscopy - DOI: 10.4025/actascibiolsci.v25i1.2097

Detalhes bibliográficos
Autor(a) principal: Ganeco, Luciana Nakaghi
Data de Publicação: 2008
Outros Autores: Nakaghi, Laura Satiko Okada
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta Scientiarum Biological Sciences
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2097
Resumo: This paper studied the morphology of oocytes of Brycon orbignyanus, (Osteichthyes, Characidae), through observation in Scanning Electron Microscopy (SEM). Fragments of the ovaries from adult females were collected. During the reproductive period, a hormonal induction in females was carried out to collect the oocytes after extrusion. The samples were fixed and processed for observation in SEM. Results showed that the oocytes of B. orbignyanus had a follicular epithelium formed by a single layer of cells with compressed shape, covering the whole radiatta zone that showed a smooth and regular surface with innumerable pores. The micropyle had a funnel-shaped, containing several furrows. The oocyte surface around the micropyle presented pores closer of each other than the other surface areas of radiatta zone
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spelling Morphology of the micropyle and oocyte surface of piracanjuba, Brycon orbignyanus (Osteichthyes Characidae), with scanning electron microscopy - DOI: 10.4025/actascibiolsci.v25i1.2097Morfologia da micrópila e da superfície dos ovócitos de piracanjuba, Brycon orbignyanus (Osteichthyes, Characidae), sob microscopia eletrônica de varredura - DOI: 10.4025/actascibiolsci.v25i1.2097morfologiaovócitomicrópilateleósteoBrycon orbignyanus2.01.00.00-0 Biologia GeralThis paper studied the morphology of oocytes of Brycon orbignyanus, (Osteichthyes, Characidae), through observation in Scanning Electron Microscopy (SEM). Fragments of the ovaries from adult females were collected. During the reproductive period, a hormonal induction in females was carried out to collect the oocytes after extrusion. The samples were fixed and processed for observation in SEM. Results showed that the oocytes of B. orbignyanus had a follicular epithelium formed by a single layer of cells with compressed shape, covering the whole radiatta zone that showed a smooth and regular surface with innumerable pores. The micropyle had a funnel-shaped, containing several furrows. The oocyte surface around the micropyle presented pores closer of each other than the other surface areas of radiatta zoneEste trabalho analisou a morfologia dos ovócitos de Brycon orbignyanus (Osteichthyes, Characidae), por meio de análises em microscopia eletrônica de varredura (MEV). Amostras de ovários de piracanjubas adultas foram coletadas. No período reprodutivo, realizou-se a indução hormonal nas fêmeas para coleta dos ovócitos após a extrusão. As amostras foram fixadas e processadas para observação em MEV. Os resultados mostraram que os ovócitos de B. orbignyanus apresentaram o epitélio folicular formado por uma única camada de células com formato achatado, recobrindo toda a zona radiata. Esta mostrou uma superfície lisa e regular com inúmeros poros. A micrópila apresentou forma de funil, com presença de vários sulcos ou pregas. A superfície do ovócito em torno da abertura micropilar mostrou poros mais próximos uns dos outros em relação a outras áreas da superfície da zona radiataUniversidade Estadual De Maringá2008-04-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/209710.4025/actascibiolsci.v25i1.2097Acta Scientiarum. Biological Sciences; Vol 25 No 1 (2003); 227-231Acta Scientiarum. Biological Sciences; v. 25 n. 1 (2003); 227-2311807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2097/1550Ganeco, Luciana NakaghiNakaghi, Laura Satiko Okadainfo:eu-repo/semantics/openAccess2022-11-23T17:33:20Zoai:periodicos.uem.br/ojs:article/2097Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2022-11-23T17:33:20Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Morphology of the micropyle and oocyte surface of piracanjuba, Brycon orbignyanus (Osteichthyes Characidae), with scanning electron microscopy - DOI: 10.4025/actascibiolsci.v25i1.2097
Morfologia da micrópila e da superfície dos ovócitos de piracanjuba, Brycon orbignyanus (Osteichthyes, Characidae), sob microscopia eletrônica de varredura - DOI: 10.4025/actascibiolsci.v25i1.2097
title Morphology of the micropyle and oocyte surface of piracanjuba, Brycon orbignyanus (Osteichthyes Characidae), with scanning electron microscopy - DOI: 10.4025/actascibiolsci.v25i1.2097
spellingShingle Morphology of the micropyle and oocyte surface of piracanjuba, Brycon orbignyanus (Osteichthyes Characidae), with scanning electron microscopy - DOI: 10.4025/actascibiolsci.v25i1.2097
Ganeco, Luciana Nakaghi
morfologia
ovócito
micrópila
teleósteo
Brycon orbignyanus
2.01.00.00-0 Biologia Geral
title_short Morphology of the micropyle and oocyte surface of piracanjuba, Brycon orbignyanus (Osteichthyes Characidae), with scanning electron microscopy - DOI: 10.4025/actascibiolsci.v25i1.2097
title_full Morphology of the micropyle and oocyte surface of piracanjuba, Brycon orbignyanus (Osteichthyes Characidae), with scanning electron microscopy - DOI: 10.4025/actascibiolsci.v25i1.2097
title_fullStr Morphology of the micropyle and oocyte surface of piracanjuba, Brycon orbignyanus (Osteichthyes Characidae), with scanning electron microscopy - DOI: 10.4025/actascibiolsci.v25i1.2097
title_full_unstemmed Morphology of the micropyle and oocyte surface of piracanjuba, Brycon orbignyanus (Osteichthyes Characidae), with scanning electron microscopy - DOI: 10.4025/actascibiolsci.v25i1.2097
title_sort Morphology of the micropyle and oocyte surface of piracanjuba, Brycon orbignyanus (Osteichthyes Characidae), with scanning electron microscopy - DOI: 10.4025/actascibiolsci.v25i1.2097
author Ganeco, Luciana Nakaghi
author_facet Ganeco, Luciana Nakaghi
Nakaghi, Laura Satiko Okada
author_role author
author2 Nakaghi, Laura Satiko Okada
author2_role author
dc.contributor.author.fl_str_mv Ganeco, Luciana Nakaghi
Nakaghi, Laura Satiko Okada
dc.subject.por.fl_str_mv morfologia
ovócito
micrópila
teleósteo
Brycon orbignyanus
2.01.00.00-0 Biologia Geral
topic morfologia
ovócito
micrópila
teleósteo
Brycon orbignyanus
2.01.00.00-0 Biologia Geral
description This paper studied the morphology of oocytes of Brycon orbignyanus, (Osteichthyes, Characidae), through observation in Scanning Electron Microscopy (SEM). Fragments of the ovaries from adult females were collected. During the reproductive period, a hormonal induction in females was carried out to collect the oocytes after extrusion. The samples were fixed and processed for observation in SEM. Results showed that the oocytes of B. orbignyanus had a follicular epithelium formed by a single layer of cells with compressed shape, covering the whole radiatta zone that showed a smooth and regular surface with innumerable pores. The micropyle had a funnel-shaped, containing several furrows. The oocyte surface around the micropyle presented pores closer of each other than the other surface areas of radiatta zone
publishDate 2008
dc.date.none.fl_str_mv 2008-04-18
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2097
10.4025/actascibiolsci.v25i1.2097
url http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2097
identifier_str_mv 10.4025/actascibiolsci.v25i1.2097
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2097/1550
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual De Maringá
publisher.none.fl_str_mv Universidade Estadual De Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Biological Sciences; Vol 25 No 1 (2003); 227-231
Acta Scientiarum. Biological Sciences; v. 25 n. 1 (2003); 227-231
1807-863X
1679-9283
reponame:Acta Scientiarum Biological Sciences
instname:Universidade Estadual de Maringá (UEM)
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instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta Scientiarum Biological Sciences
collection Acta Scientiarum Biological Sciences
repository.name.fl_str_mv Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv ||actabiol@uem.br
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