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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
14/10/2009 |
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Data da última atualização: |
13/07/2018 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
ALVES, V. M. C.; GUIMARAES, C. T.; SHAFF, J.; KOCHIAN, L.; PARENTONI, S. N.; SCHAFFERT, R. E.; MAGALHÃES, J. |
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Afiliação: |
VERA MARIA CARVALHO ALVES, CNPMS; CLAUDIA TEIXEIRA GUIMARAES, CNPMS; Jon Shaff, Cornell University; Leon Kochian, Cornell University; SIDNEY NETTO PARENTONI, CNPMS; ROBERT EUGENE SCHAFFERT, CNPMS; Jurandir Magalhães, Cornell University. |
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Título: |
Molecular and physiological analysis of aluminum tolerance in maize recombinant inbreds. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: INTERNATIONAL PLANT NUTRITION COLLOQUIUM, 16., 2009, Sacramento, California. Proceedings... Davis: University of California, 2009. |
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Idioma: |
Inglês |
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Conteúdo: |
Aluminum (Al) toxicity is a major constraint for crop production on acid, Al toxic soils, that occupy over 50% of the potentially arable lands in the world. Aluminum is ubiquitous in soils and when solubilized at pH values below 5.0, becomes highly phytotoxic as Al3+, causing severe yield reduction to sensitive crops. Al tolerance in species such as wheat, barley and sorghum appears to rely largely on a small number of genes within each species. However, quantitative inheritance for Al tolerance appears to be the general pattern observed in rice and maize. In maize, citrate exudation has been suggested as an important tolerance mechanism. However, lack of correlation between citrate exudation and differential Al tolerance observed in some maize lines suggests that other Al tolerance mechanisms may take place in maize. In this study, we undertook a physiological study of Al tolerance mechanisms focusing on citrate exudation in selected maize recombinant inbred lines for which a QTL map had been previously developed. Our results are being assessed in light of the genetic constitution of these RILs for the major Al tolerance QTLs segregating in the population. Our results support the role of citrate exudation as a major Al tolerance mechanism in maize but suggest that other mechanisms probably take place in this population. |
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Palavras-Chave: |
Toxicidade. |
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Thesagro: |
Alumínio; Milho. |
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Categoria do assunto: |
S Ciências Biológicas |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/59869/1/Molecular-physiological.pdf
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Marc: |
LEADER 02072naa a2200229 a 4500
001 1513824
005 2018-07-13
008 2009 bl uuuu u00u1 u #d
100 1 $aALVES, V. M. C.
245 $aMolecular and physiological analysis of aluminum tolerance in maize recombinant inbreds.$h[electronic resource]
260 $c2009
520 $aAluminum (Al) toxicity is a major constraint for crop production on acid, Al toxic soils, that occupy over 50% of the potentially arable lands in the world. Aluminum is ubiquitous in soils and when solubilized at pH values below 5.0, becomes highly phytotoxic as Al3+, causing severe yield reduction to sensitive crops. Al tolerance in species such as wheat, barley and sorghum appears to rely largely on a small number of genes within each species. However, quantitative inheritance for Al tolerance appears to be the general pattern observed in rice and maize. In maize, citrate exudation has been suggested as an important tolerance mechanism. However, lack of correlation between citrate exudation and differential Al tolerance observed in some maize lines suggests that other Al tolerance mechanisms may take place in maize. In this study, we undertook a physiological study of Al tolerance mechanisms focusing on citrate exudation in selected maize recombinant inbred lines for which a QTL map had been previously developed. Our results are being assessed in light of the genetic constitution of these RILs for the major Al tolerance QTLs segregating in the population. Our results support the role of citrate exudation as a major Al tolerance mechanism in maize but suggest that other mechanisms probably take place in this population.
650 $aAlumínio
650 $aMilho
653 $aToxicidade
700 1 $aGUIMARAES, C. T.
700 1 $aSHAFF, J.
700 1 $aKOCHIAN, L.
700 1 $aPARENTONI, S. N.
700 1 $aSCHAFFERT, R. E.
700 1 $aMAGALHÃES, J.
773 $tIn: INTERNATIONAL PLANT NUTRITION COLLOQUIUM, 16., 2009, Sacramento, California. Proceedings... Davis: University of California, 2009.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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| Registros recuperados : 516 | |
| 163. |  | DAMASCENO, C. M. B.; PARRELLA, R. A. C.; SIMEONE, M. L. P.; SCHAFFERT, R. E.; MAGALHAES, J. V. Biochemical and molecular analysis of bioenergy sorghums for variation in lignin content. In: PAN AMERICAN CONGRESS ON PLANTS AND BIOENERGY, 2., 2010, São Pedro, São Paulo. [Abstracts]. São Pedro: [s.n.], 2010. p. 21-22.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 165. | | BALIGAR, V. C.; ANGHINONI, I.; PITTA, G. V. E.; SANTOS, H. L. dos; CUNHA FILHO, E.; SCHAFFERT, R. E. Aluminum effects on plant and nutrient uptake parameters of soil and solution grown sorghum genotypes. Journal of Plant Nutrition, New York, v. 18, n. 11, p. 2325-2338, 1995.| Tipo: Artigo em Periódico Indexado |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 169. | | DAMASCENO, C. M. B.; PARRELLA, R. A. da C.; SIMEONE, M. L. F.; SCHAFFERT, R. E.; MAGALHAES, J. V. de. Caracterização bioquímica de genótipos de sorgo quanto ao teor de lignina e análise molecular de rotas metabólicas visando à produção de etanol de segunda geração. In: CONGRESSO NACIONAL DE MILHO E SORGO, 28.; SIMPÓSIO BRASILEIRO SOBRE A LAGARTA DO CARTUCHO, 4., 2010, Goiânia. Potencialidades, desafios e sustentabilidade: resumos expandidos... Sete Lagoas: ABMS, 2010. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 171. | | KOCHIAN, L.; MAGALHAES, J.; LIU, J.; HOEKENGA, O.; PINEROS, M.; SCHAFFERT, R. E.; SHAFF, J.; ALVES, V. Molecular approaches to rhizosphere research: identification and characterization of aluminum tolerance genes and their use to improve acid soil tolerance. In: INTERNATIONAL CONFERENCE RHIZOSPHERE , 2., 2007, Montpellier. Book of abstracts... Montpellier: INRA, 2007.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 172. | | ALVES, V. M. C.; GUIMARAES, C. T.; SHAFF, J.; KOCHIAN, L.; PARENTONI, S. N.; SCHAFFERT, R. E.; MAGALHÃES, J. Molecular and physiological analysis of aluminum tolerance in maize recombinant inbreds. In: INTERNATIONAL PLANT NUTRITION COLLOQUIUM, 16., 2009, Sacramento, California. Proceedings... Davis: University of California, 2009.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 174. | | SANTOS, C. V. dos; SILVA, N. S.; MAGALHAES, J. V.; SCHAFFERT, R. E.; MENEZES, C. B. de. Performance of grain sorghum hybrids in soils with low and high aluminum saturation. Pesquisa Agropecuária Tropical, Goiânia, v. 48, n. 1, p. 12-18, jan./mar. 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 175. | | OLIVEIRA-PAIVA, C. A.; SCHAFFERT, R. E.; ALVES, V. M. C.; BRASIL, E. C.; MARRIEL, I. E. Pêlos radiculares em genótipos de sorgo contrastantes para fósforo. In: CONGRESSO NACIONAL DE MILHO E SORGO, 24., 2002, Florianópolis, SC. Meio ambiente e a nova agenda para o agronegócio de milho e sorgo: [resumos expandidos]. Sete Lagoas: ABMS: Embrapa Milho e Sorgo; Florianópolis: Epagri, 2002.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 177. | | MARRIEL, I. E.; NEVES, A. L.; NEVES, A. A.; OLIVEIRA, A. C. de; OLIVEIRA-PAIVA, C. A.; SCHAFFERT, R. E. Metabolic diversity of diazotrophic bacteria isolates from Brazilian maize and sorghum cultivars by the biolog system. In: INTERNATIONAL SYMPOSIUM ON NITROGEN FIXATION WITH NON-LEGUMES, 11., 2008, Gent, Belgium. Abstracts... Belgium: Universiteit Gent, 2008. p. 40.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 179. | | ALVES, V. M. C.; OLIVEIRA-PAIVA, C. A.; PITTA, G. V. E.; SCHAFFERT, R. E.; MAGALHAES, J. V. de. Nova metodologia para seleção de genótipos de sorgo quanto a tolerância ao alumínio em solução nutritiva. In: CONGRESSO NACIONAL DE MILHO E SORGO, 25.; SIMPOSIO BRASILEIRO SOBRE A LAGARTA-DO-CARTUCHO, SPODOPTERA FRUGIPERDA, 1., 2004, Cuiabá, MT. Da agricultura familiar ao agronegócio: tecnologia, competitividade e sustentabilidade: [resumos expandidos]. Sete Lagoas: ABMS: Embrapa Milho e Sorgo; Cuiabá: Empaer, 2004. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| Registros recuperados : 516 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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