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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
15/12/2014 |
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Data da última atualização: |
15/12/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RIVERO-WENDT, C. L. G.; BORGES, A. C.; OLIVEIRA FILHO, E. C. de; MIRANDA-VILELA, A. L.; FERREIRA, M. F. N.; GRISOLIA, C. K. |
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Afiliação: |
UNB; UNB; EDUARDO CYRINO DE OLIVEIRA FILHO, CPAC; UNB; UNB; UNB. |
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Título: |
Effects of 17α-methyltestosterone on the reproduction of the freshwater snail Biomphalaria glabrata. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Genetics and Molecular Research, v. 13, n. 1, p. 605-615, 2014. |
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ISSN: |
1676-5680 |
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DOI: |
http://dx.doi.org/10.4238/2014.January.28.6 |
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Idioma: |
Inglês |
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Conteúdo: |
17-α-methyltestosterone (MT) is a synthetic hormone used in fish hatcheries to induce male monosex. Snails hold promise as possible test models to assess chemicals acting on the endocrine system. Biomphalaria glabrata is an aquatic gastropod mollusk (Pulmonata, Planorbidae) that can be easily maintained in aquaria, predisposing the species for use in ecotoxicological testing. This study evaluated the reproductive effects of MT on B. glabrata by examining histological changes and its reproductive performance. Ten snails per group were exposed for 4 weeks to different concentrations of MT (0.01, 0.1, and 1.0 mg/L). The total number of laid eggs, egg mass per group, size of type V oocytes, and production of spermatozoids were determined. Reproduction of B. glabrata was affected by MT. At the lowest concentration (0.01 mg/L), MT caused a statistically significant increase in the number of egg mass per snail compared with controls unexposed to MT. Histopathology analyses showed an increase in the sperm production at the higher MT concentrations of 0.1 and 1.0 mg/L. Chromatographic analyses of water samples showed that MT concentrations rapidly declined within a 96-h period. These results highlight the importance of giving more support to regulatory authorities, since MT is not registered for use on fish hatcheries in many countries around the world. Wastewater from fish farms discharged into aquatic ecosystems should be monitored for MT residues, since its presence could compromise the reproduction of other native snail species. Menos17-α-methyltestosterone (MT) is a synthetic hormone used in fish hatcheries to induce male monosex. Snails hold promise as possible test models to assess chemicals acting on the endocrine system. Biomphalaria glabrata is an aquatic gastropod mollusk (Pulmonata, Planorbidae) that can be easily maintained in aquaria, predisposing the species for use in ecotoxicological testing. This study evaluated the reproductive effects of MT on B. glabrata by examining histological changes and its reproductive performance. Ten snails per group were exposed for 4 weeks to different concentrations of MT (0.01, 0.1, and 1.0 mg/L). The total number of laid eggs, egg mass per group, size of type V oocytes, and production of spermatozoids were determined. Reproduction of B. glabrata was affected by MT. At the lowest concentration (0.01 mg/L), MT caused a statistically significant increase in the number of egg mass per snail compared with controls unexposed to MT. Histopathology analyses showed an increase in the sperm production at the higher MT concentrations of 0.1 and 1.0 mg/L. Chromatographic analyses of water samples showed that MT concentrations rapidly declined within a 96-h period. These results highlight the importance of giving more support to regulatory authorities, since MT is not registered for use on fish hatcheries in many countries around the world. Wastewater from fish farms discharged into aquatic ecosystems should be monitored for MT residues, since its presence could com... Mostrar Tudo |
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Palavras-Chave: |
Desreguladores endócrinos; Hormônio sintético; Performance reprodutiva. |
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Thesagro: |
Biomphalaria Glabrata; Histopatologia. |
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Thesaurus Nal: |
Endocrine-disrupting chemicals; Histopathology; Methyltestosterone; Reproductive performance; Synthetic hormones. |
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Categoria do assunto: |
S Ciências Biológicas |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/113741/1/34253.pdf
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Marc: |
LEADER 02596naa a2200325 a 4500
001 2002535
005 2014-12-15
008 2014 bl uuuu u00u1 u #d
022 $a1676-5680
024 7 $ahttp://dx.doi.org/10.4238/2014.January.28.6$2DOI
100 1 $aRIVERO-WENDT, C. L. G.
245 $aEffects of 17α-methyltestosterone on the reproduction of the freshwater snail Biomphalaria glabrata.
260 $c2014
520 $a17-α-methyltestosterone (MT) is a synthetic hormone used in fish hatcheries to induce male monosex. Snails hold promise as possible test models to assess chemicals acting on the endocrine system. Biomphalaria glabrata is an aquatic gastropod mollusk (Pulmonata, Planorbidae) that can be easily maintained in aquaria, predisposing the species for use in ecotoxicological testing. This study evaluated the reproductive effects of MT on B. glabrata by examining histological changes and its reproductive performance. Ten snails per group were exposed for 4 weeks to different concentrations of MT (0.01, 0.1, and 1.0 mg/L). The total number of laid eggs, egg mass per group, size of type V oocytes, and production of spermatozoids were determined. Reproduction of B. glabrata was affected by MT. At the lowest concentration (0.01 mg/L), MT caused a statistically significant increase in the number of egg mass per snail compared with controls unexposed to MT. Histopathology analyses showed an increase in the sperm production at the higher MT concentrations of 0.1 and 1.0 mg/L. Chromatographic analyses of water samples showed that MT concentrations rapidly declined within a 96-h period. These results highlight the importance of giving more support to regulatory authorities, since MT is not registered for use on fish hatcheries in many countries around the world. Wastewater from fish farms discharged into aquatic ecosystems should be monitored for MT residues, since its presence could compromise the reproduction of other native snail species.
650 $aEndocrine-disrupting chemicals
650 $aHistopathology
650 $aMethyltestosterone
650 $aReproductive performance
650 $aSynthetic hormones
650 $aBiomphalaria Glabrata
650 $aHistopatologia
653 $aDesreguladores endócrinos
653 $aHormônio sintético
653 $aPerformance reprodutiva
700 1 $aBORGES, A. C.
700 1 $aOLIVEIRA FILHO, E. C. de
700 1 $aMIRANDA-VILELA, A. L.
700 1 $aFERREIRA, M. F. N.
700 1 $aGRISOLIA, C. K.
773 $tGenetics and Molecular Research$gv. 13, n. 1, p. 605-615, 2014.
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Registro original: |
Embrapa Cerrados (CPAC) |
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| Registros recuperados : 24 | |
| 1. |  | MACHADO, C. T. de T.; MACHADO, A. T.; REIS JUNIOR, F. B. dos; VILELA, A. L. Acumulacao de nitrogenio, fosforo e zinco em indices de eficiencia de utilizacao e translocacao de nutrientes em milho submetido a dois niveis de adubacao nitrogenada. In: REUNIAO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRICAO DE PLANTAS, 26.; REUNIAO BRASILEIRA SOBRE MICORRIZAS, 10.; SIMPOSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 8.; REUNIAO BRASILEIRA DE BIOLOGIA DO SOLO, 5., 2004, Lages, SC. FertBio 2004: avaliacao das conquistas: bases para estrategias futuras. Lages: [s. n.], 2004. nao paginado.| Biblioteca(s): Embrapa Cerrados. |
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| 2. | | SOUZA, A. C. de; ROSA, S. D. V. F. da; VILELA, A. L.; FIGUEIREDO, M. A. de; VILELA, A. L. de O.; STÉPHANO FILHO, R.; CARVALHO, M. A. de F. Big coffee VL: seed desiccation tolerance, sieve classification, and physiological quality. Coffee Science, Lavras, v. 13, n. 4, p. 510 - 518, oct./dec. 2018 Título em português: Big coffee VL: tolerância a dessecação de sementes, classificação em peneiras e qualidade fisiológica.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Café. |
|  |
| 3. | | FIGUEIREDO, A. G.; ROSA, S. D. V. F. da; CLEMENTE, A. C. S.; MALTA, M. R.; VILELA, A. L. Antioxidant enzyme expression and its relationship to coffee beans quality. In: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 26., 2016, Kunming,Yunnan, China. Proceedings... ASIC - Association for Science and Information on Coffee, 2016. p. 246.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Café. |
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| 6. | | VILELA, A. L. O.; ROSA, S. D. V. F. da; COELHO, S. V. B.; PEREIRA, C. C.; SOUZA, A. C. de; RIBEIRO, F. A. S. Acclimatization of coffee seedlings obtained from zygotic embryos of aged seeds. Australian Journal of Crop Science, v. 16, n. 9, p.112-1134, 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Café. |
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| 8. | | RICALDONI, M. A.; ROSA, S. D. V. F. da; CARDOSO, F. P.; FIGUEIREDO, M. A. de; VILELA, A. L.; COELHO, S. V. B.; FÁVARIS, N. A. B. Antioxidant effect of cathodic water on seeds. Ciência rural, v. 50, n. 6, e20180474, 2020. Título em português: Ação antioxidante da água catódica em sementes.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Café. |
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| 9. | | ABREU, G. F. de; ROSA, S. D. V. F. da; MALTA, M. R.; CLEMENTE, A. da C. S.; VILELA, A. L.; PEREIRA, R. W. Antioxidant enzymes preserving coffee quality in refrigerate environment. Biotecnología Vegetal, v. 18, n. 3, p. 151-159, julio-septiembre, 2018 Título em espanhol: Enzimas antioxidantes preservan la calidad del café en ambiente refrigerado.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Café. |
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| 10. | | FIGUEIREDO, M. A.; ROSA, S. D. V. F. da; CLEMENTE, A. C. S.; CARVALHO, C. P.; RICALDONI, M. A.; VILELA, A. L. Cathodic and catalase enzyme protection in coffee seeds uner different cryopreservation protocols. In: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 26., 2016, Kunming,Yunnan, China. Proceedings... ASIC - Association for Science and Information on Coffee, 2016. p. 124.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Café. |
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| 12. | | VILELA, A. L.; OLIVEIRA, T. P.; ROSA, S. D. V. F. da; CARDOSO, D. B.; SOUZA, L. N. C.; STETPHANO FILHO, R.; SILVA, J. A. Sementes de Big Coffee: estudos preliminares da tolerância à dessecação e caracterização física. In: CONGRESSO BRASILEIRO DE PESQUISAS CAFEEIRAS, 42., 2016, Serra Negra, SP. Produzir mais café, com economia, só com boa tecnologia: trabalhos apresentados. Varginha: Fundação Procafé, 2016. 466 p.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Café. |
|  |
| 13. | | VILELA, A. L.; ROSA, S. D. V. F. da; SOUZA, A. C. de; CARDOSO, D. B.; SOUZA, L. N. C. de; STÉPHANO FILHO, R. Caracterização física e fisiológica de sementes do cafeeiro Big coffe. In: CONGRESSO DE INICIAÇÃO CIENTÍFICA DA UFLA, 29., 2016, Lavras. [Anais...] Lavras: Universidade Federal de Lavras, 2016.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Café. |
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| 14. | | MOREIRA, W. A.; MAGALHÃES, E. E. de; KARASWA, M.; PEREIRA, A. V. da S.; LOPES, D. B.; VILELA, A. L. G. Eficácia agronômica de fungicidas no controle da antracnose em mangueira irrigada no Vale do Submédio São Francisco. In: SEMINÁRIO BRASILEIRO DE PRODUÇÃO INTEGRADA DE FRUTAS, 8., 2006, Vitória. Anais... Vitória: INCAPER, 2006. p. 186-187.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 15. | | RIVERO-WENDT, C. L. G.; BORGES, A. C.; OLIVEIRA FILHO, E. C. de; MIRANDA-VILELA, A. L.; FERREIRA, M. F. N.; GRISOLIA, C. K. Effects of 17α-methyltestosterone on the reproduction of the freshwater snail Biomphalaria glabrata. Genetics and Molecular Research, v. 13, n. 1, p. 605-615, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Cerrados. |
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| 16. | | JIMENEZ, E. J. M.; MARTINS, P. M. M.; VILELA, A. L. de O.; BATISTA, N. N.; ROSA, S. D. V. F. da; DIAS, D. R.; SCHWAN, R. F. Influence of anaerobic fermentation and yeast inoculation on the viability, chemical composition, and quality of coffee. Food Bioscience, v. 51, 102218, 2023. 9 p.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Café. |
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| 17. | | ABREU, G. F.; ROSA, S. D. V. F. da; COELHO, S. V. B.; PEREIRA, C. C.; MALTA, M. R.; FANTAZZINI, T. B.; VILELA, A. L. Influence of hulling and storage conditions on maintaining coffee quality. Anais da Academia Brasileira de Ciências, v. 95, n. 4, 2023. 12 p.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Café. |
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| 18. | | FREIRE, I. S.; MIRANDA-VILELA, A. L.; FASCINELI, M. L.; OLIVEIRA FILHO, E. C. de; MARTINS, E. S.; PONTES, R. G. M. S. de; GRISOLIA, C. K. Genotoxic evaluation in Oreochromis niloticus (Fish: Characidae) of recombinant spore-crystal complexes Cry1Ia, Cry10Aa and Cry1Ba6 from Bacillus thuringiensis. Ecotoxicology, v. 23, p. 267-272, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Cerrados; Embrapa Recursos Genéticos e Biotecnologia. |
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| 20. | | CARVALHO, M. V. de; MORAES, P. I. C.; COELHO, S. V. B.; FIGUEIREDO, M. A. de; VILELA, A. L. O.; SOUZA, A. C. de; ROSA, S. D. V. F. da. Accelerated aging test for coffee seeds requires higher temperature. Australian Journal of Crop Science, v. 17, n. 6, 2023. 8 p.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Café. |
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| Registros recuperados : 24 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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