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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pesca e Aquicultura. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
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Data corrente: |
04/10/2018 |
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Data da última atualização: |
29/11/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
KIRSCHNIK, L. N. G.; FRANCESCHINI-VICENTINI, I. B.; PAES, M. do C. F.; NAKAGHI, L. S. O. |
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Afiliação: |
LUCIANA NAKAGHI GANECO KIRSCHNIK, CNPASA; IRENE BASTOS FRANCESCHINI-VICENTINI, UNESP, Jaboticabal-SP; MARIA DO CARMO FARIA PAES, UNESP, Jaboticabal-SP; LAURA SATIKO OKADA NAKAGHI, UNESP, Jaboticabal-SP. |
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Título: |
Embryonic development of teleost Brycon orbignyanus. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Zygote, v. 26, n. 4, p. 294-300, Aug. 2018. |
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DOI: |
10.1017/S0967199418000229 |
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Idioma: |
Inglês |
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Conteúdo: |
Brycon orbignyanus is an important large teleost that is currently on the list of endangered species, therefore studies on its reproductive biology and embryology are fundamental to help species conservation and recovery. The objective of this research was to characterize the events that occur during extrusion, fertilization and embryonic development of the species. The samples were collected at predetermined times, fixed and processed for light microscopy and scanning electron microscopy. The greenish oocytes were spherical, had translucent chorion and a mean diameter of 1.3±0.11 mm. The eggs had well defined animal and vegetative poles approximately 18 min post-fertilization. Stages from 2 to 128 blastomeres occurred between 20 min and 3 h post-fertilization (hPF), when the morula was characterized. The blastula stage was observed between 2 and 3 hPF, and the gastrula between 3 and 7 hPF, when the embryonic shield emerged and the cellular migration with the consequent formation of epiblast and hypoblast. At 8 hPF, the formation of the neural tube, above the notochord and the encephalic region, was observed, delimiting the forebrain, mesencephalon and rhombencephalon regions. From 11 hPF onward, the optic vesicle was formed close to the forebrain and the embryo tail was well developed. The optic vesicle was observed from 12 hPF onward, and the tail showed an intense movement that culminated with the rupture of the chorion and consequent hatching of the larva at 13 hPF and 27°C. MenosBrycon orbignyanus is an important large teleost that is currently on the list of endangered species, therefore studies on its reproductive biology and embryology are fundamental to help species conservation and recovery. The objective of this research was to characterize the events that occur during extrusion, fertilization and embryonic development of the species. The samples were collected at predetermined times, fixed and processed for light microscopy and scanning electron microscopy. The greenish oocytes were spherical, had translucent chorion and a mean diameter of 1.3±0.11 mm. The eggs had well defined animal and vegetative poles approximately 18 min post-fertilization. Stages from 2 to 128 blastomeres occurred between 20 min and 3 h post-fertilization (hPF), when the morula was characterized. The blastula stage was observed between 2 and 3 hPF, and the gastrula between 3 and 7 hPF, when the embryonic shield emerged and the cellular migration with the consequent formation of epiblast and hypoblast. At 8 hPF, the formation of the neural tube, above the notochord and the encephalic region, was observed, delimiting the forebrain, mesencephalon and rhombencephalon regions. From 11 hPF onward, the optic vesicle was formed close to the forebrain and the embryo tail was well developed. The optic vesicle was observed from 12 hPF onward, and the tail showed an intense movement that culminated with the rupture of the chorion and consequent hatching of the larva at 13 hPF and 2... Mostrar Tudo |
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Thesagro: |
Brycon Orbignyanus; Histologia Animal; Peixe; Reprodução Animal. |
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Thesaurus Nal: |
Embryology; Fish; Histology; Reproduction; Ultrastructure. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02275naa a2200277 a 4500
001 2096898
005 2018-11-29
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1017/S0967199418000229$2DOI
100 1 $aKIRSCHNIK, L. N. G.
245 $aEmbryonic development of teleost Brycon orbignyanus.$h[electronic resource]
260 $c2018
520 $aBrycon orbignyanus is an important large teleost that is currently on the list of endangered species, therefore studies on its reproductive biology and embryology are fundamental to help species conservation and recovery. The objective of this research was to characterize the events that occur during extrusion, fertilization and embryonic development of the species. The samples were collected at predetermined times, fixed and processed for light microscopy and scanning electron microscopy. The greenish oocytes were spherical, had translucent chorion and a mean diameter of 1.3±0.11 mm. The eggs had well defined animal and vegetative poles approximately 18 min post-fertilization. Stages from 2 to 128 blastomeres occurred between 20 min and 3 h post-fertilization (hPF), when the morula was characterized. The blastula stage was observed between 2 and 3 hPF, and the gastrula between 3 and 7 hPF, when the embryonic shield emerged and the cellular migration with the consequent formation of epiblast and hypoblast. At 8 hPF, the formation of the neural tube, above the notochord and the encephalic region, was observed, delimiting the forebrain, mesencephalon and rhombencephalon regions. From 11 hPF onward, the optic vesicle was formed close to the forebrain and the embryo tail was well developed. The optic vesicle was observed from 12 hPF onward, and the tail showed an intense movement that culminated with the rupture of the chorion and consequent hatching of the larva at 13 hPF and 27°C.
650 $aEmbryology
650 $aFish
650 $aHistology
650 $aReproduction
650 $aUltrastructure
650 $aBrycon Orbignyanus
650 $aHistologia Animal
650 $aPeixe
650 $aReprodução Animal
700 1 $aFRANCESCHINI-VICENTINI, I. B.
700 1 $aPAES, M. do C. F.
700 1 $aNAKAGHI, L. S. O.
773 $tZygote$gv. 26, n. 4, p. 294-300, Aug. 2018.
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Registro original: |
Embrapa Pesca e Aquicultura (CNPASA) |
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| Registros recuperados : 3 | |
| 1. |  | LOBATO, G. de J. M.; MARTORANO, L. G.; LUCAS, F. C. A.; TAVARES-MARTINS, A. C. C.; JARDIM, M. A. G. Condições térmico-hídricas e percepções de conforto ambiental em quintais urbanos de Abaetetuba, Pará, Brasil. Ra'e Ga: o Espaço Geográfico em Análise, Curitiba, v. 38, p. 243-266, dez. 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 2. | | LOBATO, G. de J. M.; LUCAS, F. C. A.; TAVARES-MARTINS, A. C. C.; JARDIM, M. A. G.; MARTORANO, L. G. Diversidade de uso e aspectos socioambientais de quintais urbanos em Abaetetuba, Pará, Brasil. Revista Brasileira de Agroecologia, v. 12, n. 2, p. 95-105, jun. 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 3. | | LOBATO, G. de J. M.; LUCAS, F. C. A.; TAVARES-MARTINS, A. C. C.; JARDIM, M. A. G.; MARTORANO, L. G.; PAULA, M. T. de. Temperatura e umidade relativa do ar em ambientes com e sem vegetação no bairro Mutirão, Abaetetuba, Pará, Brasil. In: SIMPÓSIO DE ESTUDOS E PESQUISAS EM CIÊNCIAS AMBIENTAIS NA AMAZÔNIA, 3., 2014, Belém, PA. Anais: artigos aprovados - 2014. [Belém, PA]: Universidade do Estado do Pará, Centro de Ciências Naturais e Tecnologia, 2014. v. 3, p. 479-486.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| Registros recuperados : 3 | |
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