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Registro Completo |
Biblioteca(s): |
Embrapa Cerrados; Embrapa Unidades Centrais. |
Data corrente: |
20/03/2008 |
Data da última atualização: |
20/10/2009 |
Tipo da produção científica: |
Documentos |
Autoria: |
FRAGOSO, R. da R.; LOURENÇO, I. T.; VIANA, A. A. B.; SOUZA, D. dos S. de L.; ANDRADE, R. V. de; MEHTA, A.; BRASILEIRO, A. C. M.; PINTO, E. R. de C.; LIMA, L. M. de; ROCHA, T L.; SA, M. F. G. de. |
Afiliação: |
Rodrigo da Rocha Fragoso, CPAC; Antônio Américo Barbosa Viana; Isabela Tritan Lourenço; Djair dos Santos de Lima Souza; Liziane Maria de Lima; Angela Mehta; Rosângela Vieira de Andrade; Ana Cristina Miranda Brasileiro; Eduardo Romano de Campos Pinto; Thales Lima Rocha; Maria de Fátima Grossi de Sá. |
Título: |
Interação molecular planta-nematóide. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
Planaltina, DF: Embrapa Cerrados, 2007. |
Páginas: |
56 p. |
Série: |
(Embrapa Cerrados. Documentos, 198). |
Idioma: |
Português |
Conteúdo: |
ABSTRACT: The endoparasitic sedentary phytonematodes of genera Heterodera, Globodera (known as cyst nematodes, CN) and Meloidogyne (the root-knot nematodes, RKN) are major crop phytopathogens, causing estimated losses of US$ 125 billion annually in the world. These plant-parasitic nematodes share some parasitism mechanisms, which ensure host-tissue invasion and host-defense evasion. The establishment and maintenance of the sophisticated molecular plant-nematode interaction are based upon several secreted molecules that access plant cellular processes, transforming them in enlarged, multinucleate, and metabolically active feeding cells. Nematicides applications are usually expensive, inefficient and environmentally hazardous. Crop rotation, bio-control agents and/or host resistance have not been successfully deployed against nematodes, except in some rare cases. Considering all limitations of nematode control, considerable attention have been given to the study of the molecular plant-nematode interaction, to obtain a comprehensive understanding of this patosystem, and to generate efficient alternatives to nematode control. The cultivation of resistant plants is the best control against nematodes, but this strategy is dependent on the existence and mapping of natural resistance genes, witch trigger hypersensitive response, for subsequent genetic breeding, limited to plants evolutively closely related. Other resistance mechanism observed is the production and accumulation of secondary metabolites with antimicrobial, nematicide and insecticide activities. Hundreds of plant genes that are differently expressed during nematode parasitism are already characterized, shading light on this patosystem at a molecular level. Despite several techniques that have been used for the study of plant-pathogen interaction, recent researches with inhibition of nematode gene expression, using RNA interference, have demonstrate the enormous potential of transgenic plants resistant to phytonematodes. MenosABSTRACT: The endoparasitic sedentary phytonematodes of genera Heterodera, Globodera (known as cyst nematodes, CN) and Meloidogyne (the root-knot nematodes, RKN) are major crop phytopathogens, causing estimated losses of US$ 125 billion annually in the world. These plant-parasitic nematodes share some parasitism mechanisms, which ensure host-tissue invasion and host-defense evasion. The establishment and maintenance of the sophisticated molecular plant-nematode interaction are based upon several secreted molecules that access plant cellular processes, transforming them in enlarged, multinucleate, and metabolically active feeding cells. Nematicides applications are usually expensive, inefficient and environmentally hazardous. Crop rotation, bio-control agents and/or host resistance have not been successfully deployed against nematodes, except in some rare cases. Considering all limitations of nematode control, considerable attention have been given to the study of the molecular plant-nematode interaction, to obtain a comprehensive understanding of this patosystem, and to generate efficient alternatives to nematode control. The cultivation of resistant plants is the best control against nematodes, but this strategy is dependent on the existence and mapping of natural resistance genes, witch trigger hypersensitive response, for subsequent genetic breeding, limited to plants evolutively closely related. Other resistance mechanism observed is the production and accumulation of se... Mostrar Tudo |
Palavras-Chave: |
Controle; Pests of plants. |
Thesagro: |
Genética Vegetal; Nematóide; Praga de Planta; Resistência Genética. |
Thesaurus Nal: |
genetic resistance; genetics; Nematoda. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPAC-2009/28619/1/doc_198.pdf
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Marc: |
LEADER 02971nam a2200361 a 4500 001 1571936 005 2009-10-20 008 2007 bl uuuu 00u1 u #d 100 1 $aFRAGOSO, R. da R. 245 $aInteração molecular planta-nematóide. 260 $aPlanaltina, DF: Embrapa Cerrados$c2007 300 $a56 p. 490 $a(Embrapa Cerrados. Documentos, 198). 520 $aABSTRACT: The endoparasitic sedentary phytonematodes of genera Heterodera, Globodera (known as cyst nematodes, CN) and Meloidogyne (the root-knot nematodes, RKN) are major crop phytopathogens, causing estimated losses of US$ 125 billion annually in the world. These plant-parasitic nematodes share some parasitism mechanisms, which ensure host-tissue invasion and host-defense evasion. The establishment and maintenance of the sophisticated molecular plant-nematode interaction are based upon several secreted molecules that access plant cellular processes, transforming them in enlarged, multinucleate, and metabolically active feeding cells. Nematicides applications are usually expensive, inefficient and environmentally hazardous. Crop rotation, bio-control agents and/or host resistance have not been successfully deployed against nematodes, except in some rare cases. Considering all limitations of nematode control, considerable attention have been given to the study of the molecular plant-nematode interaction, to obtain a comprehensive understanding of this patosystem, and to generate efficient alternatives to nematode control. The cultivation of resistant plants is the best control against nematodes, but this strategy is dependent on the existence and mapping of natural resistance genes, witch trigger hypersensitive response, for subsequent genetic breeding, limited to plants evolutively closely related. Other resistance mechanism observed is the production and accumulation of secondary metabolites with antimicrobial, nematicide and insecticide activities. Hundreds of plant genes that are differently expressed during nematode parasitism are already characterized, shading light on this patosystem at a molecular level. Despite several techniques that have been used for the study of plant-pathogen interaction, recent researches with inhibition of nematode gene expression, using RNA interference, have demonstrate the enormous potential of transgenic plants resistant to phytonematodes. 650 $agenetic resistance 650 $agenetics 650 $aNematoda 650 $aGenética Vegetal 650 $aNematóide 650 $aPraga de Planta 650 $aResistência Genética 653 $aControle 653 $aPests of plants 700 1 $aLOURENÇO, I. T. 700 1 $aVIANA, A. A. B. 700 1 $aSOUZA, D. dos S. de L. 700 1 $aANDRADE, R. V. de 700 1 $aMEHTA, A. 700 1 $aBRASILEIRO, A. C. M. 700 1 $aPINTO, E. R. de C. 700 1 $aLIMA, L. M. de 700 1 $aROCHA, T L. 700 1 $aSA, M. F. G. de
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Embrapa Cerrados (CPAC) |
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Registro Completo
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
10/01/2012 |
Data da última atualização: |
10/01/2012 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
MENDES, N. da S. R.; SILVA, Y. P. A.; TIRABOSQUI, P. C. A.; BASSINELLO, P. Z.; ARTHUR, V.; SOUZA, A. R. M. de. |
Afiliação: |
NATHALIA DA SILVA RODRIGUES MENDES, graduanda UFG; YASMINI PORTES ABRAHAM SILVA, graduanda UFG; PAULA CAROLINA ARAÚJO TIRABOSQUI, graduanda UFG; PRISCILA ZACZUK BASSINELLO, CNPAF; VALTER ARTHUR, CENA; ADRIANA RÉGIA MARQUES DE SOUZA, UFG. |
Título: |
Efeito da irradiação gama sobre fatores antinutricionais em feijões comerciais (Phaseolus vulgaris l.) do grupo carioca. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
In: CONGRESSO NACIONAL DE PESQUISA DE FEIJÃO, 10., 2011, Goiânia. Anais... Goiânia: Embrapa Arroz e Feijão, 2011. |
Descrição Física: |
1 CD-ROM. |
Idioma: |
Português |
Notas: |
CONAFE. |
Conteúdo: |
Este trabalho foi desenvolvido com o objetivo de avaliar os efeitos da irradiação sobre os fatores antinutricionais (taninos e fitatos) de feijões comerciais (Phaseolus vulgaris L.) grupo carioca, tendo em vista que, a presença destes antinutrientes tem-se tornado nutricionalmente indesejável, pelo fato de promover à baixa biodisponibilidade de macromoléculas, como proteínas, carboidratos, aminoácidos, vitaminas e minerais, pela formação de complexos. |
Thesagro: |
Feijão; Irradiação; Phaseolus vulgaris. |
Categoria do assunto: |
Q Alimentos e Nutrição Humana |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/51951/1/cta11.pdf
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Marc: |
LEADER 01217nam a2200229 a 4500 001 1912196 005 2012-01-10 008 2011 bl uuuu u00u1 u #d 100 1 $aMENDES, N. da S. R. 245 $aEfeito da irradiação gama sobre fatores antinutricionais em feijões comerciais (Phaseolus vulgaris l.) do grupo carioca. 260 $aIn: CONGRESSO NACIONAL DE PESQUISA DE FEIJÃO, 10., 2011, Goiânia. Anais... Goiânia: Embrapa Arroz e Feijão$c2011 300 $c1 CD-ROM. 500 $aCONAFE. 520 $aEste trabalho foi desenvolvido com o objetivo de avaliar os efeitos da irradiação sobre os fatores antinutricionais (taninos e fitatos) de feijões comerciais (Phaseolus vulgaris L.) grupo carioca, tendo em vista que, a presença destes antinutrientes tem-se tornado nutricionalmente indesejável, pelo fato de promover à baixa biodisponibilidade de macromoléculas, como proteínas, carboidratos, aminoácidos, vitaminas e minerais, pela formação de complexos. 650 $aFeijão 650 $aIrradiação 650 $aPhaseolus vulgaris 700 1 $aSILVA, Y. P. A. 700 1 $aTIRABOSQUI, P. C. A. 700 1 $aBASSINELLO, P. Z. 700 1 $aARTHUR, V. 700 1 $aSOUZA, A. R. M. de
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Embrapa Arroz e Feijão (CNPAF) |
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