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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
22/05/2007 |
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Data da última atualização: |
28/09/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CERDEIRA, A. L.; SOUZA, M. D. de; BOLONHEZI, D.; QUEIROZ, S. C. do N. de; FERRACINI, V. L.; LIGO, M. A. V.; PESSOA, M. C. P. Y.; SMITH JUNIOR. S. |
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Afiliação: |
ANTONIO LUIZ CERDEIRA, CNPMA; MANOEL DORNELAS DE SOUZA, CNPMA; D. Bolonhezi, Agronomic Institute of Campinas, APTA-Centro Leste; SONIA CLAUDIA DO N DE QUEIROZ, CNPMA; VERA LUCIA FERRACINI, CNPMA; MARCOS ANTONIO VIEIRA LIGO, CNPMA; MARIA CONCEICAO PERES YOUNG PESSOA, CNPMA; S. Smith Jr, USDA-ARS-National Sedimentation Laboratory, Oxford, MS. |
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Título: |
Effects of sugar cane mechanical harvesting followed by no-tillage crop systems on leaching of triazine herbicides in Brazil. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Bulletin of Environmental Contamination and Toxicology, New York, v. 75, n. 4, p. 805-812, 2005. |
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Idioma: |
Inglês |
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Conteúdo: |
The state of São Paulo, located in southeast Brazil, is an important sugarcane, soybean and corn producing area with high use of chemicals in agriculture and potential risk of environmental contamination (Pessoa et al. 1998). This region is also an important recharge area for groundwater of the Guarany Aquifer, which spreads to areas of eight Brazilian states plus parts of Argentina, Uruguay and Paraguay. Also, in Brazil, currently most of the sugar cane crop is burned to facilitate harvesting and this could interfere with soil properties. In São Paulo State, where the agriculture is well developed, there is a new trend toward sugar cane mechanical harvesting, without burning. This practice allows the straw to decompose in soil, maintain a better soil structure, and can interfere with the movement and leaching of solutes. It is also normal to grow other crops following sugarcane in No-tillage (NT) and conventional tillage (CT), that could further affect the movement of herbicides in the environment (Smith et al. 2001). Several studies have demonstrated the possibility of pesticides leaching to groundwater (Smith et al. 2001; Bouwer 1990). Among them, triazine herbicides such as Atrrazine,(2-chloro-4-ethylamino-6-isopropylamino-l,3,5-triazine) ametryn, (2-(ethylamino)-4-isopropylamino-6-methyl-thio-s-triazine), and simazine[2-chloro-4,6-bis(ethylamino)-l,3,5-triazíne] are used in Brazil and can contamínate groundwater (Pessoa et al. 1998). The Brazilian Health Ministry has set the maximum amount of atrazine and simazine in drinking water at 2 ug/L (Pessoa et al. 1998). MenosThe state of São Paulo, located in southeast Brazil, is an important sugarcane, soybean and corn producing area with high use of chemicals in agriculture and potential risk of environmental contamination (Pessoa et al. 1998). This region is also an important recharge area for groundwater of the Guarany Aquifer, which spreads to areas of eight Brazilian states plus parts of Argentina, Uruguay and Paraguay. Also, in Brazil, currently most of the sugar cane crop is burned to facilitate harvesting and this could interfere with soil properties. In São Paulo State, where the agriculture is well developed, there is a new trend toward sugar cane mechanical harvesting, without burning. This practice allows the straw to decompose in soil, maintain a better soil structure, and can interfere with the movement and leaching of solutes. It is also normal to grow other crops following sugarcane in No-tillage (NT) and conventional tillage (CT), that could further affect the movement of herbicides in the environment (Smith et al. 2001). Several studies have demonstrated the possibility of pesticides leaching to groundwater (Smith et al. 2001; Bouwer 1990). Among them, triazine herbicides such as Atrrazine,(2-chloro-4-ethylamino-6-isopropylamino-l,3,5-triazine) ametryn, (2-(ethylamino)-4-isopropylamino-6-methyl-thio-s-triazine), and simazine[2-chloro-4,6-bis(ethylamino)-l,3,5-triazíne] are used in Brazil and can contamínate groundwater (Pessoa et al. 1998). The Brazilian Health Ministry has se... Mostrar Tudo |
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Thesagro: |
Agrotóxico; Águas subterrâneas; Cana de açúcar; Efeito residual; Herbicida; Lixiviação; Poluição da água; Qualidade da água. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02559naa a2200301 a 4500
001 1015447
005 2015-09-28
008 2005 bl uuuu u00u1 u #d
100 1 $aCERDEIRA, A. L.
245 $aEffects of sugar cane mechanical harvesting followed by no-tillage crop systems on leaching of triazine herbicides in Brazil.$h[electronic resource]
260 $c2005
520 $aThe state of São Paulo, located in southeast Brazil, is an important sugarcane, soybean and corn producing area with high use of chemicals in agriculture and potential risk of environmental contamination (Pessoa et al. 1998). This region is also an important recharge area for groundwater of the Guarany Aquifer, which spreads to areas of eight Brazilian states plus parts of Argentina, Uruguay and Paraguay. Also, in Brazil, currently most of the sugar cane crop is burned to facilitate harvesting and this could interfere with soil properties. In São Paulo State, where the agriculture is well developed, there is a new trend toward sugar cane mechanical harvesting, without burning. This practice allows the straw to decompose in soil, maintain a better soil structure, and can interfere with the movement and leaching of solutes. It is also normal to grow other crops following sugarcane in No-tillage (NT) and conventional tillage (CT), that could further affect the movement of herbicides in the environment (Smith et al. 2001). Several studies have demonstrated the possibility of pesticides leaching to groundwater (Smith et al. 2001; Bouwer 1990). Among them, triazine herbicides such as Atrrazine,(2-chloro-4-ethylamino-6-isopropylamino-l,3,5-triazine) ametryn, (2-(ethylamino)-4-isopropylamino-6-methyl-thio-s-triazine), and simazine[2-chloro-4,6-bis(ethylamino)-l,3,5-triazíne] are used in Brazil and can contamínate groundwater (Pessoa et al. 1998). The Brazilian Health Ministry has set the maximum amount of atrazine and simazine in drinking water at 2 ug/L (Pessoa et al. 1998).
650 $aAgrotóxico
650 $aÁguas subterrâneas
650 $aCana de açúcar
650 $aEfeito residual
650 $aHerbicida
650 $aLixiviação
650 $aPoluição da água
650 $aQualidade da água
700 1 $aSOUZA, M. D. de
700 1 $aBOLONHEZI, D.
700 1 $aQUEIROZ, S. C. do N. de
700 1 $aFERRACINI, V. L.
700 1 $aLIGO, M. A. V.
700 1 $aPESSOA, M. C. P. Y.
700 1 $aSMITH JUNIOR. S.
773 $tBulletin of Environmental Contamination and Toxicology, New York$gv. 75, n. 4, p. 805-812, 2005.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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| Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
05/09/2011 |
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Data da última atualização: |
12/12/2011 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
DELTEIL, A.; BLEIN, M.; FAIVRE-RAMPANT, O.; GUELLIM, A.; ESTEVAN, J.; HIRSCH, J.; BEVITORI, R.; MICHEL, C.; MOREL, J.-B. |
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Afiliação: |
AMANDINE DELTEIL, CIRAD; MÉLISANDE BLEIN, CIRAD; ODILE FAIVRE-RAMPANT, PARCO TECNOLOGICO PADANO; AMIRA GUELLIM, CIRAD; JOAN ESTEVAN, CIRAD; JUDITH HIRSCH, CIRAD; ROSANGELA BEVITORI, CNPAF; CORINNE MICHEL, CIRAD; JEAN-BENOIT MOREL, CIRAD. |
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Título: |
Building a mutant resource for the study of disease resistance in rice reveals the pivotal role of several genes involved in defence. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Molecular Plant Pathology, 2011. |
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DOI: |
10.1111/j.1364-3703.2011.00731.x |
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Idioma: |
Inglês |
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Conteúdo: |
In Arabidopsis, gene expression studies and analysis of knock-out (KO) mutants have been instrumental in building an integrated view of disease resistance pathways. Such an integrated view is missing in rice where shared tools, including genes and mutants, must be assembled. This work provides a tool kit consisting of informative genes for the molecular characterization of the interaction of rice with the major fungal pathogen Magnaporthe oryzae. It also provides for a set of eight KO mutants, all in the same genotypic background, in genes involved in key steps of the rice disease resistance pathway. This study demonstrates the involvement of three genes, OsWRKY28, rTGA2.1 and NH1, in the establishment of full basal resistance to rice blast. The transcription factor OsWRKY28 acts as a negative regulator of basal resistance, like the orthologous barley gene. Finally, the up-regulation of the negative regulator OsWRKY28 and the down-regulation of PR gene expression early during M. oryzae infection suggest that the fungus possesses infection mechanisms that enable it to block host defences. |
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Thesagro: |
Arroz; Brusone; Mutante; Oryza sativa. |
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Thesaurus NAL: |
Blast disease; Knockout mutants; Magnaporthe oryzae; Rice. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 01992naa a2200325 a 4500
001 1899626
005 2011-12-12
008 2011 bl uuuu u00u1 u #d
024 7 $a10.1111/j.1364-3703.2011.00731.x$2DOI
100 1 $aDELTEIL, A.
245 $aBuilding a mutant resource for the study of disease resistance in rice reveals the pivotal role of several genes involved in defence.
260 $c2011
520 $aIn Arabidopsis, gene expression studies and analysis of knock-out (KO) mutants have been instrumental in building an integrated view of disease resistance pathways. Such an integrated view is missing in rice where shared tools, including genes and mutants, must be assembled. This work provides a tool kit consisting of informative genes for the molecular characterization of the interaction of rice with the major fungal pathogen Magnaporthe oryzae. It also provides for a set of eight KO mutants, all in the same genotypic background, in genes involved in key steps of the rice disease resistance pathway. This study demonstrates the involvement of three genes, OsWRKY28, rTGA2.1 and NH1, in the establishment of full basal resistance to rice blast. The transcription factor OsWRKY28 acts as a negative regulator of basal resistance, like the orthologous barley gene. Finally, the up-regulation of the negative regulator OsWRKY28 and the down-regulation of PR gene expression early during M. oryzae infection suggest that the fungus possesses infection mechanisms that enable it to block host defences.
650 $aBlast disease
650 $aKnockout mutants
650 $aMagnaporthe oryzae
650 $aRice
650 $aArroz
650 $aBrusone
650 $aMutante
650 $aOryza sativa
700 1 $aBLEIN, M.
700 1 $aFAIVRE-RAMPANT, O.
700 1 $aGUELLIM, A.
700 1 $aESTEVAN, J.
700 1 $aHIRSCH, J.
700 1 $aBEVITORI, R.
700 1 $aMICHEL, C.
700 1 $aMOREL, J.-B.
773 $tMolecular Plant Pathology, 2011.
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Embrapa Arroz e Feijão (CNPAF) |
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