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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
10/01/2011 |
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Data da última atualização: |
15/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MARTINEZ, C. O.; SILVA, C. M. M. de S.; FAY, E. F.; ABAKERLI, R. B.; MAIA, A. de H. N.; DURRANT, L. R. |
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Afiliação: |
Camila Ortiz Martines, FEA-UNICAMP; CÉLIA MARIA MAGANHOTTO DE SOUZA SILVA, CNPMA; ELISABETH FRANCISCONI FAY, CNPMA; Rosângela Blotta Abakerli, CPQBA-UNICAMP; ALINE DE HOLANDA NUNES MAIA, CNPMA; Lúcia R. Durrant, FEA-UNICAMP. |
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Título: |
Microbial degradation of sulfentrazone in a Brazilian Rhodic Hapludox soil. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Brazilian Journal of Microbiology, v. 41, p. 209-217, 2010. |
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Idioma: |
Inglês |
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Conteúdo: |
Sulfentrazone is amongst the most widely used herbicides for treating the main crops in the State of São Paulo, Brazil, but few studies are available on the biotransformation of this compound in Brazilian soils. Soil samples of Rhodic Hapludox soil were supplemented with sulfentrazone (0.7 µg active ingredient (a.i.) g-1 soil) and maintained at 27ºC. The soil moisture content was corrected to 30, 70 or 100 % water holding capacity (WHC) and maintained constant until the end of the experimental period. Herbicide-free soil samples were used as controls. Another experiment was carried out using soil samples maintained at a constant moisture content of 70% WHC, supplemented or otherwise with the herbicide, and submitted to different temperatures of 15, 30 and 40º C. In both experiments, aliquots were removed after various incubation periods for the quantitative analysis of sulfentrazone residues by gas chromatography. Herbicide-degrading microorganisms were isolated and identified. After 120 days a significant effect on herbicide degradation was observed for the factor of temperature, degradation being higher at 30 and 40º C. A half-life of 91.6 days was estimated at 27º C and 70 % WHC. The soil moisture content did not significantly affect sulfentrazone degradation and the microorganisms identified as potential sulfentrazone degraders were Nocardia brasiliensis and Penicillium sp. The present study enhanced the prospects for future studies on the bio-prospecting for microbial populations related to the degradation of sulfentrazone, and may also contribute to the development of strategies for the bioremediation of sulfentrazone-polluted soils. MenosSulfentrazone is amongst the most widely used herbicides for treating the main crops in the State of São Paulo, Brazil, but few studies are available on the biotransformation of this compound in Brazilian soils. Soil samples of Rhodic Hapludox soil were supplemented with sulfentrazone (0.7 µg active ingredient (a.i.) g-1 soil) and maintained at 27ºC. The soil moisture content was corrected to 30, 70 or 100 % water holding capacity (WHC) and maintained constant until the end of the experimental period. Herbicide-free soil samples were used as controls. Another experiment was carried out using soil samples maintained at a constant moisture content of 70% WHC, supplemented or otherwise with the herbicide, and submitted to different temperatures of 15, 30 and 40º C. In both experiments, aliquots were removed after various incubation periods for the quantitative analysis of sulfentrazone residues by gas chromatography. Herbicide-degrading microorganisms were isolated and identified. After 120 days a significant effect on herbicide degradation was observed for the factor of temperature, degradation being higher at 30 and 40º C. A half-life of 91.6 days was estimated at 27º C and 70 % WHC. The soil moisture content did not significantly affect sulfentrazone degradation and the microorganisms identified as potential sulfentrazone degraders were Nocardia brasiliensis and Penicillium sp. The present study enhanced the prospects for future studies on the bio-prospecting for microbial p... Mostrar Tudo |
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Thesagro: |
Biodegradação. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/872459/1/2010AP-Silva-Microbial-9514.pdf
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Marc: |
LEADER 02250naa a2200193 a 4500
001 1872459
005 2023-03-15
008 2010 bl uuuu u00u1 u #d
100 1 $aMARTINEZ, C. O.
245 $aMicrobial degradation of sulfentrazone in a Brazilian Rhodic Hapludox soil.$h[electronic resource]
260 $c2010
520 $aSulfentrazone is amongst the most widely used herbicides for treating the main crops in the State of São Paulo, Brazil, but few studies are available on the biotransformation of this compound in Brazilian soils. Soil samples of Rhodic Hapludox soil were supplemented with sulfentrazone (0.7 µg active ingredient (a.i.) g-1 soil) and maintained at 27ºC. The soil moisture content was corrected to 30, 70 or 100 % water holding capacity (WHC) and maintained constant until the end of the experimental period. Herbicide-free soil samples were used as controls. Another experiment was carried out using soil samples maintained at a constant moisture content of 70% WHC, supplemented or otherwise with the herbicide, and submitted to different temperatures of 15, 30 and 40º C. In both experiments, aliquots were removed after various incubation periods for the quantitative analysis of sulfentrazone residues by gas chromatography. Herbicide-degrading microorganisms were isolated and identified. After 120 days a significant effect on herbicide degradation was observed for the factor of temperature, degradation being higher at 30 and 40º C. A half-life of 91.6 days was estimated at 27º C and 70 % WHC. The soil moisture content did not significantly affect sulfentrazone degradation and the microorganisms identified as potential sulfentrazone degraders were Nocardia brasiliensis and Penicillium sp. The present study enhanced the prospects for future studies on the bio-prospecting for microbial populations related to the degradation of sulfentrazone, and may also contribute to the development of strategies for the bioremediation of sulfentrazone-polluted soils.
650 $aBiodegradação
700 1 $aSILVA, C. M. M. de S.
700 1 $aFAY, E. F.
700 1 $aABAKERLI, R. B.
700 1 $aMAIA, A. de H. N.
700 1 $aDURRANT, L. R.
773 $tBrazilian Journal of Microbiology$gv. 41, p. 209-217, 2010.
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Embrapa Meio Ambiente (CNPMA) |
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| 1. |  | PULIDO-RODRÍGUEZ, L. F.; TITTO, E. A. L.; HENRIQUE, F. L.; LONGO, A. L. S.; HOOPER, H. B.; PEREIRA, T. L.; PEREIRA, A. M. F.; TITTO, C. G. Termografia infravermelha da superfície ocular como indicador de estresse em suínos na fase de creche. Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 37, n. 5, p. 453-458, maio 2017. Título em inglês: Infrared thermography of the ocular surface as stress indicator for piglets postweaning.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 3. | | RICCI, G. D.; DALLA COSTA, O. A.; TITTO, C. G.; TRINDADE NETO, M. A. da; BERTO, P. N.; FARIAS, S. de S.; TITTO, E. A. L. Comportamento e ganho de peso de suínos na creche submetidos ao desgaste ou não dos dentes na fase de maternidade. In: ENCONTRO ANUAL DE ETOLOGIA, 34., 2016, Jaboticabal, SP. Voltando as origens e desenhando o futuro. Anais... Jabotical: ETCO, SBEt; UNESP; FUNEP, 2016. p. 190.| Tipo: Resumo em Anais de Congresso |
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| 4. | | RICCI, G. D.; DALLA COSTA, O. A.; TRINDADE, M. A. da; SOUZA, R. T. de; TONON, E.; TITTO, C. G. Desgaste dos dentes de leitões: análise etológica e de bem-estar animal. In: OELKE, C. A.; GALATI, R. L. (org.). Zootecnia: tópicos atuais em pesquisa. Guarujá: Científica Digital, 2023. v. 2. p. 59-70. In: OELKE, C. A.; GALATI, R. L. (org.). Zootecnia: tópicos atuais em pesquisa. Guarujá: Científica Digital, 2023. v. 2. p. 59-70.| Tipo: Capítulo em Livro Técnico-Científico |
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