|
|
Registro Completo |
Biblioteca(s): |
Embrapa Gado de Corte. |
Data corrente: |
21/01/2014 |
Data da última atualização: |
21/01/2014 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
FERREIRA, A. D.; ARAUJO, A. R. de; MACEDO, M. C. M.; ALMEIDA, R. G. de. |
Afiliação: |
ANDRE DOMINGHETTI FERREIRA, CNPGC; ALEXANDRE ROMEIRO DE ARAUJO, CNPGC; MANUEL CLAUDIO MOTTA MACEDO, CNPGC; ROBERTO GIOLO DE ALMEIDA, CNPGC. |
Título: |
Resistência do solo à penetração em diferentes sistemas de integração lavoura-pecuária-floresta. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
In: SISTEMAS AGROFLORESTAIS E DESENVOLVIMENTO SUSTENTÁVEL 10 ANOS DE PESQUISA, 2013, Campo Grande. Anais... Campo Grande: SAF´s : Embrapa Gado de Corte, 2013. |
Idioma: |
Português |
Palavras-Chave: |
INTEGRAÇÃO LAVOURA - PECUÁRIA - FLORESTA. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/95629/1/RESISTENCIA-DO-SOLO-A-PENETRACAO-EM-DIFERENTES-SISTEMAS...pdf
|
Marc: |
LEADER 00633nam a2200145 a 4500 001 1976943 005 2014-01-21 008 2013 bl uuuu u00u1 u #d 100 1 $aFERREIRA, A. D. 245 $aResistência do solo à penetração em diferentes sistemas de integração lavoura-pecuária-floresta.$h[electronic resource] 260 $aIn: SISTEMAS AGROFLORESTAIS E DESENVOLVIMENTO SUSTENTÁVEL 10 ANOS DE PESQUISA, 2013, Campo Grande. Anais... Campo Grande: SAF´s : Embrapa Gado de Corte$c2013 653 $aINTEGRAÇÃO LAVOURA - PECUÁRIA - FLORESTA 700 1 $aARAUJO, A. R. de 700 1 $aMACEDO, M. C. M. 700 1 $aALMEIDA, R. G. de
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Gado de Corte (CNPGC) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registro Completo
Biblioteca(s): |
Embrapa Meio-Norte. |
Data corrente: |
22/03/2008 |
Data da última atualização: |
28/06/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
Internacional - A |
Autoria: |
ASSIS, C. R. D.; AMARAL, I. P. G.; CASTRO, P. F.; CARVALHO JÚNIOR, L. B.; BEZERRA, R. S. |
Título: |
Effect of Dichlorvos on the acetylcholinesterase from tambaqui (Colossoma macropomum) Brain. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
Environmental Toxicology and Chemistry, v. 26, n. 7, p. 1451-1453, 2007. |
ISSN: |
0730-7268 |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
Biomarker; Organophosphorous pesticide. |
Thesagro: |
Colossoma Macropomum; Tambaqui. |
Thesaurus NAL: |
acetylcholinesterase; dichlorvos. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/24534/1/5620260715-ftp.pdf
|
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.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Meio-Norte (CPAMN) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Expressão de busca inválida. Verifique!!! |
|
|