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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
04/10/2006 |
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Data da última atualização: |
12/04/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ARAÚJO, A. S. F.; MONTEIRO, R. T. R.; ABAKERLI, R. B. |
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Afiliação: |
A. S. F. ARAÚJO, aCentro de Energia Nuclear na Agricultura; R. T. R. MONTEIRO, Embrapa Meio Ambiente; R. B. ABAKERLI, Embrapa Meio Ambiente. |
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Título: |
Effect of glyphosate on the microbial activity of two Brazilian soils. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Chemosphere, Oxford, v. 52, p. 799-804, 2003. |
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Idioma: |
Inglês |
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Conteúdo: |
Glyphosate [N-(phosphonomethyl)-glycine] is a broad-spectrum, non-selective, post-emergence herbicide that is widely used in agricultural. We studied, in vitro, changes in the microbial activity of typical Hapludult and Hapludox Brazilian soils, with and without applied glyphosate. Glyphosate was applied at a rate of 2.16 mg glyphosate kg[-1] of soil and microbial activity was measured by soil respiration (evolution of CO[2]) and fluorescein diacetate (FDA) hydrolysis over a period of 32 days. We found an increase of 10-15% in the CO[2] evolved and a 9-19% increase in FDA hydrolyses in the presence of glyphosate compared with the same type of soil which had never received glyphosate. Soil which had been exposed to glyphosate for several years had the strongest response in microbial activity. Most probable number (MPN) counts showed that after 32 days incubation the number of actinomycetes and fungi had increased while the number of bacteria showed a slight reduction. After the incubation period, high pressure liquid chromatography (HPLC) detected the glyphosate metabolite aminomethyl phosphonic acid (AMPA), indicating glyphosate degradation by soil microorganisms. |
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Thesagro: |
Biodegradação; Herbicida. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/163844/1/Araujo-Effect-6438.pdf
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Marc: |
LEADER 01673naa a2200169 a 4500
001 1015088
005 2018-04-12
008 2003 bl uuuu u00u1 u #d
100 1 $aARAÚJO, A. S. F.
245 $aEffect of glyphosate on the microbial activity of two Brazilian soils.$h[electronic resource]
260 $c2003
520 $aGlyphosate [N-(phosphonomethyl)-glycine] is a broad-spectrum, non-selective, post-emergence herbicide that is widely used in agricultural. We studied, in vitro, changes in the microbial activity of typical Hapludult and Hapludox Brazilian soils, with and without applied glyphosate. Glyphosate was applied at a rate of 2.16 mg glyphosate kg[-1] of soil and microbial activity was measured by soil respiration (evolution of CO[2]) and fluorescein diacetate (FDA) hydrolysis over a period of 32 days. We found an increase of 10-15% in the CO[2] evolved and a 9-19% increase in FDA hydrolyses in the presence of glyphosate compared with the same type of soil which had never received glyphosate. Soil which had been exposed to glyphosate for several years had the strongest response in microbial activity. Most probable number (MPN) counts showed that after 32 days incubation the number of actinomycetes and fungi had increased while the number of bacteria showed a slight reduction. After the incubation period, high pressure liquid chromatography (HPLC) detected the glyphosate metabolite aminomethyl phosphonic acid (AMPA), indicating glyphosate degradation by soil microorganisms.
650 $aBiodegradação
650 $aHerbicida
700 1 $aMONTEIRO, R. T. R.
700 1 $aABAKERLI, R. B.
773 $tChemosphere, Oxford$gv. 52, p. 799-804, 2003.
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Embrapa Meio Ambiente (CNPMA) |
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| Registros recuperados : 62 | |
| 11. |  | SILVA, C. M. M. de S.; FAY, E. F.; ABAKERLI, R. B. Avaliação dos resíduos de iprodiona em maçã, água de lavagem e sedimento após tratamento pós-colheita. In: SEMINÁRIO BRASILEIRO DE PRODUÇÃO INTEGRADA DE FRUTAS, 6., 2004, Petrolina, PE. [Resumos...]. Petrolina, PE: Embrapa Semi-Árido: Valexport, 2004. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 16. | | BOEIRA, R. C.; SOUZA, M. D. de; HERMES, L. C.; ABAKERLI, R. B.; FAY, E. F. Procedimento para linearização de isotermas de adsorção de clomazone. In: CONGRESO VIRTUAL IBEROAMERICANO SOBRE GESTIÓN DE CALIDAD EN LABORATORIOS, 3., 2005, Madrid. Libro de comunicaciones: tomo I. Madrid: Ministério da Agricultura, Pesca y Alimentación, 2005. p. 255-259.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 17. | | BOEIRA, R. C.; SOUZA, M. D. de; HERMES, L. C.; ABAKERLI, R. B.; FAY, E. F. Procedimento para linearização de isotermas de adsorção de clomazone. In: CONGRESO VIRTUAL IBEROAMERICANO SOBRE GESTIÓN DE CALIDAD EN LABORATORIOS, 3., 2005, Madrid. Libro de comunicaciones: tomo I. Madrid: Ministério da Agricultura, Pesca y Alimentación, 2005.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 18. | | PROCOPIO, A. R. L.; ABAKERLI, R. B.; HARAKAVA, R.; MELO, I. S. de. Potencial biotecnológico de rizobactérias isoladas de arroz alagado. In: ENCONTRO NACIONAL DE MICROBIOLOGIA AMBIENTAL, 9., 2004, Curitiba, PR. Livro de Resumos. Curitiba, PR: UFPR, 2004. p. 29| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| Registros recuperados : 62 | |
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