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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
22/03/2008 |
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Data da última atualização: |
28/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ASSIS, C. R. D.; AMARAL, I. P. G.; CASTRO, P. F.; CARVALHO JÚNIOR, L. B.; BEZERRA, R. S. |
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Título: |
Effect of Dichlorvos on the acetylcholinesterase from tambaqui (Colossoma macropomum) Brain. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Environmental Toxicology and Chemistry, v. 26, n. 7, p. 1451-1453, 2007. |
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ISSN: |
0730-7268 |
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Idioma: |
Inglês |
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Conteúdo: |
Dichlorvos is an acutely toxic organophosphorous pesticide that is known as a classical acetylcholinesterase (AChE; EC 3.1.1.7) inhibitor. Here, the brain AChE from the important Amazonian fish tambaqui (Colossoma macropomum) was assayed in the presence of this insecticide and also of deltamethrin, a classical sodium and potassium channel inhibitor (negative control). Four tissue homogenates were analyzed in triplicate for AChE activity using acetylthiocholine as the substrate and 5,5'-dithiobis(2-nitrobenzoic) acid (DTNB) as the color-developing agent. Each tissue homogenate represented pooled brains from five fish. The inhibitory effect of dichlorvos on AChE activities was determined at concentrations from 0.001 to 10 ppm and compared to controls. This effect followed an exponential decay model (y = 9.420 + 26.192e(-x/5.380); r2 = 0.989), presenting IC50 (the concentration of dichlorvos that is required for 50% of AChE inhibition) of 0.081 ppm (0.368 umol/L). No effect was observed for the deltamethrin, and the concentration 0.0452 umol/L of dichlorvos was significantly different from this control. These results suggest that tambaqui brain AChE can be proposed as a biomarker for dichlorvos and can be used as a tool for aquatic environment monitoring. |
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Palavras-Chave: |
Biomarker; Organophosphorous pesticide. |
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Thesagro: |
Colossoma Macropomum; Tambaqui. |
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Thesaurus Nal: |
acetylcholinesterase; dichlorvos. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/24534/1/5620260715-ftp.pdf
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Marc: |
LEADER 02018naa a2200253 a 4500
001 1069727
005 2022-06-28
008 2007 bl uuuu u00u1 u #d
022 $a0730-7268
100 1 $aASSIS, C. R. D.
245 $aEffect of Dichlorvos on the acetylcholinesterase from tambaqui (Colossoma macropomum) Brain.
260 $c2007
520 $aDichlorvos is an acutely toxic organophosphorous pesticide that is known as a classical acetylcholinesterase (AChE; EC 3.1.1.7) inhibitor. Here, the brain AChE from the important Amazonian fish tambaqui (Colossoma macropomum) was assayed in the presence of this insecticide and also of deltamethrin, a classical sodium and potassium channel inhibitor (negative control). Four tissue homogenates were analyzed in triplicate for AChE activity using acetylthiocholine as the substrate and 5,5'-dithiobis(2-nitrobenzoic) acid (DTNB) as the color-developing agent. Each tissue homogenate represented pooled brains from five fish. The inhibitory effect of dichlorvos on AChE activities was determined at concentrations from 0.001 to 10 ppm and compared to controls. This effect followed an exponential decay model (y = 9.420 + 26.192e(-x/5.380); r2 = 0.989), presenting IC50 (the concentration of dichlorvos that is required for 50% of AChE inhibition) of 0.081 ppm (0.368 umol/L). No effect was observed for the deltamethrin, and the concentration 0.0452 umol/L of dichlorvos was significantly different from this control. These results suggest that tambaqui brain AChE can be proposed as a biomarker for dichlorvos and can be used as a tool for aquatic environment monitoring.
650 $aacetylcholinesterase
650 $adichlorvos
650 $aColossoma Macropomum
650 $aTambaqui
653 $aBiomarker
653 $aOrganophosphorous pesticide
700 1 $aAMARAL, I. P. G.
700 1 $aCASTRO, P. F.
700 1 $aCARVALHO JÚNIOR, L. B.
700 1 $aBEZERRA, R. S.
773 $tEnvironmental Toxicology and Chemistry$gv. 26, n. 7, p. 1451-1453, 2007.
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Embrapa Meio-Norte (CPAMN) |
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| Registros recuperados : 17 | |
| 9. |  | BUARQUE, D. S.; CASTRO, P. F. de; SANTOS, F. M. S.; LEMOS, D.; CARVALHO JUNIOR, L. B.; BEZERRA, R. S. Digestive peptidases and proteinases in the midgut gland of the pink shrimp Farfantepenaeus paulensis (Crustacea, Decapoda, Penaeidae). Aquaculture Research, Oxford, v. 40, n. 7, p. 861-870, 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Meio-Norte. |
|    |
| 10. | | ASSIS, C. R. D.; CASTRO, P. F. de; AMARAL, I. P. G.; CARVALHO, E. V. M. M.; CARVALHO JUNIOR, L. B.; BEZERRA, R. S. Characterization of acetylcholinesterase from the brain of the Amazonian tambaqui (Colossoma macropomum) and in vitro effect of organophosphorus and carbamate pesticides. Environmental Toxicology and Chemistry, Elmsford-NY, v. 29, n. 10, p. 2243?2248, 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Meio-Norte. |
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| 11. | | SANTANA, W. M.; SOUSA, F. J. A.; ANJOS, V. M.; SOUSA, J. M. S.; CASTRO, P. F.; PEREIRA, A. M. L. Desempenho produtivo do camarão Litopenaeus vannamei cultivado em águas interiores sob diferentes estratégias alimentares. In: CONGRESSO BRASILEIRO DE OCEANOGRAFIA, 3.; CONGRESSO IBERO-AMERICANO DE OCEANOGRAFIA, 1., 2008, Fortaleza. Anais... Fortaleza: Associação Brasileira de Oceanografia, 2008. 3 p.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Meio-Norte. |
| |
| 12. | | CASTRO, P. F.; FREITAS JUNIOR, A. C. V.; SANTANA, W. M.; COSTA, H. M. S.; CARVALHO JUNIOR, L. B.; BEZERRA, R. S. Comparative study of amylases from the midgut gland of three species of penaeid shrimp. Journal of Crustacean Biology, v. 32, n. 4, p. 607-613, 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Meio-Norte. |
|  |
| 13. | | SANTOS, J. F.; CASTRO, P. F.; LEAL, A. L. G.; FREITAS JÚNIOR, A. C. V. de; LEMOS, D.; CARVALHO JÚNIOR, L. B.; BEZERRA, R. S. Digestive enzyme activity in juvenile Nile tilapia (Oreochromis niloticus, L) submitted to different dietary levels of shrimp protein hydrolysate. Aquaculture International, v. 21, p. 563-577, 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Meio-Norte. |
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| 14. | | BUARQUE, D. S.; CASTRO, P. F. de; SANTOS, F. M. S.; AMARAL, I. P. G.; OLIVEIRA, S. M.; ALVES, K. B.; CARVALHO JUNIOR, L. B.; BEZERRA, R. S. Digestive proteinases and peptidases in the hepatopancreas of the southern brown shrimp (Farfantepenaeus subtilis) in two sub-adult stages. Aquaculture Nutrition, Oxford, v. 16, n. 4, p. 359-369, 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Meio-Norte. |
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| 15. | | LEGAT, J. F. A.; LEGAT, A. P.; CASTRO, P. F.; PEREIRA, A. M. L.; GOES, J. M.; FERNANDES-GOES, L. C. Current status of ucides cordatus (linnaeus, 1763) (crustácea, ocypodidae) fishery in the Parnaíba delta region, Brazil. In: BRAZILIAN CRUSTACEAN CONGRESS & THE CRUSTACEAM SOCIETY MEETING, 3. 2004, Florianópolis, SC. Program and Abstracts. Florianópolis: SBC, 2004. p. 123.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio-Norte. |
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| 17. | | NASCIMENTO JUNIOR, C. R. do; SILVA, J. F. da; ANDRADE, D. H. de H.; SILVA, J. de F. X. da; SOUZA, K. S. de; MELO, F. P. de; CORREIA, E. de S.; CASTRO, P. F. de; RIBEIRO, K.; BEZERRA, R. de S. Efeitos de probióticos sobre as atividades das enzimas digestórias do hepatopâncreas do camarão marinho Litopenaeus vannamei. In: AQUACIÊNCIA, 2010, Recife. [Anais...]. Recife: Aquabio: UFRPE, 2010. Ref. R0414-1. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio-Norte. |
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| Registros recuperados : 17 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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