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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
20/01/2006 |
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Data da última atualização: |
30/05/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
KOCHIAN, L. V.; PENCE, N. S.; LETHAM, D. L. D.; PINEROS, M. A.; MAGALHAES, J. V.; HOEKENGA, O. A.; GARVIN, D. F. |
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Afiliação: |
JURANDIR VIEIRA DE MAGALHAES, CNPMS. |
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Título: |
Mechanisms of metal resistance in plants: aluminum and heavy metals. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Plant and Soil, The Hague, v. 247, n.1 , p. 109-119, 2002. |
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Idioma: |
Inglês |
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Conteúdo: |
Plants have evolved sophisticated mechanisms to deal with toxic levels of metals in the soil. In this paper, an overview of recent progress with regards to understanding fundamental molecular and physiological mechanisms underlying plant resistance to both aluminium (Al) and heavy metals is presented. The discussion of plant Al resistance will focus on recent advances in our understanding of a mechanism based on Al exclusion from the root apex, which is facilitated by Al-activated exudation of organic acid anions. The consideration of heavy metal resistance will focus on research into a metal hyperaccumulating plant species, the Zn/Cd hyperaccumulator, Thlaspi caerulescens, as an example for plant heavy metal research. Based on the specific cases considered in this paper, it appears that quite different strategies are used for Al and heavy metal resistance. For Al, our current understanding of a resistance mechanism based on excluding soil-borne Al from the root apex is presented. For heavy metals, a totally different strategy based on extreme tolerance and metal hyperaccumulation is described for a hyperaccumulator plant species that has evolved on naturally metalliferous soils. The reason these two strategies are the focus of this paper is that, currently, they are the best understood mechanisms of metal resistance in terrestrial plants. However, it is likely that other mechanisms of Al and/or heavy metal resistance are also operating in certain plant species, and there may be common features shared for dealing with Al and heavy resistance. Future research may uncover a number of novel metal resistance mechanisms in plants. Certainly the complex genetics of Al resistance in some crop plant species, such as rice and maize, suggests that a number of presently unidentified mechanisms are part of an overall strategy of metal resistance in crop plants.. MenosPlants have evolved sophisticated mechanisms to deal with toxic levels of metals in the soil. In this paper, an overview of recent progress with regards to understanding fundamental molecular and physiological mechanisms underlying plant resistance to both aluminium (Al) and heavy metals is presented. The discussion of plant Al resistance will focus on recent advances in our understanding of a mechanism based on Al exclusion from the root apex, which is facilitated by Al-activated exudation of organic acid anions. The consideration of heavy metal resistance will focus on research into a metal hyperaccumulating plant species, the Zn/Cd hyperaccumulator, Thlaspi caerulescens, as an example for plant heavy metal research. Based on the specific cases considered in this paper, it appears that quite different strategies are used for Al and heavy metal resistance. For Al, our current understanding of a resistance mechanism based on excluding soil-borne Al from the root apex is presented. For heavy metals, a totally different strategy based on extreme tolerance and metal hyperaccumulation is described for a hyperaccumulator plant species that has evolved on naturally metalliferous soils. The reason these two strategies are the focus of this paper is that, currently, they are the best understood mechanisms of metal resistance in terrestrial plants. However, it is likely that other mechanisms of Al and/or heavy metal resistance are also operating in certain plant species, and there ma... Mostrar Tudo |
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Palavras-Chave: |
Aluminium resistance; Anion channel; Heavy metal transport; Metal hyperaccumulation; Organic acid exudation. |
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Thesaurus Nal: |
gene expression. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02660naa a2200265 a 4500
001 1489104
005 2018-05-30
008 2002 bl uuuu u00u1 u #d
100 1 $aKOCHIAN, L. V.
245 $aMechanisms of metal resistance in plants$baluminum and heavy metals.$h[electronic resource]
260 $c2002
520 $aPlants have evolved sophisticated mechanisms to deal with toxic levels of metals in the soil. In this paper, an overview of recent progress with regards to understanding fundamental molecular and physiological mechanisms underlying plant resistance to both aluminium (Al) and heavy metals is presented. The discussion of plant Al resistance will focus on recent advances in our understanding of a mechanism based on Al exclusion from the root apex, which is facilitated by Al-activated exudation of organic acid anions. The consideration of heavy metal resistance will focus on research into a metal hyperaccumulating plant species, the Zn/Cd hyperaccumulator, Thlaspi caerulescens, as an example for plant heavy metal research. Based on the specific cases considered in this paper, it appears that quite different strategies are used for Al and heavy metal resistance. For Al, our current understanding of a resistance mechanism based on excluding soil-borne Al from the root apex is presented. For heavy metals, a totally different strategy based on extreme tolerance and metal hyperaccumulation is described for a hyperaccumulator plant species that has evolved on naturally metalliferous soils. The reason these two strategies are the focus of this paper is that, currently, they are the best understood mechanisms of metal resistance in terrestrial plants. However, it is likely that other mechanisms of Al and/or heavy metal resistance are also operating in certain plant species, and there may be common features shared for dealing with Al and heavy resistance. Future research may uncover a number of novel metal resistance mechanisms in plants. Certainly the complex genetics of Al resistance in some crop plant species, such as rice and maize, suggests that a number of presently unidentified mechanisms are part of an overall strategy of metal resistance in crop plants..
650 $agene expression
653 $aAluminium resistance
653 $aAnion channel
653 $aHeavy metal transport
653 $aMetal hyperaccumulation
653 $aOrganic acid exudation
700 1 $aPENCE, N. S.
700 1 $aLETHAM, D. L. D.
700 1 $aPINEROS, M. A.
700 1 $aMAGALHAES, J. V.
700 1 $aHOEKENGA, O. A.
700 1 $aGARVIN, D. F.
773 $tPlant and Soil, The Hague$gv. 247, n.1 , p. 109-119, 2002.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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| Registros recuperados : 14 | |
| 1. |  | PINEROS, M. A.; SHAFF, J. E.; MANSLANK, H. S.; ALVES, V. M. C.; KOCHIAN, L. V. Aluminum resistance in maize cannot be solely explained by root organic acid exudation. A comparative physiological study Plant Physiology, Bethesda, v. 137, n. 1, p. 231-241, 2005.| Tipo: Artigo em Periódico Indexado |
| Biblioteca(s): Embrapa Milho e Sorgo. |
|    |
| 7. | | CANÇADO, G. M. A.; PINEROS, M. A.; MARON, L. G.; SHAFF, J.; CAMARGO, S. R.; MENOSSI, M.; ALVES, V. M. C.; KOCHIAN, L. V. Cloning and characterization of an ALMT1 homologue gene in Maize. In: INTERNATIONAL PLANT & ANIMAL GENOMES CONFERENCE, 15., 2007, San Diego, CA. [Proceedings...]. [S. l.: s.n.], 2007.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
|  |
| 8. | | KOCHIAN, L. V.; PENCE, N. S.; LETHAM, D. L. D.; PINEROS, M. A.; MAGALHAES, J. V.; HOEKENGA, O. A.; GARVIN, D. F. Mechanisms of metal resistance in plants: aluminum and heavy metals. Plant and Soil, The Hague, v. 247, n.1 , p. 109-119, 2002.| Tipo: Artigo em Periódico Indexado |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 9. | | MATONYEI, T. K.; CHEPROT, R. K.; LIU, J.; PIÑEROS, M. A.; SHAFF, J. E.; GUDU, S.; WERE, B.; MAGALHAES, J. V.; KOCHIAN, L. V. Physiological and molecular analysis of aluminum tolerance in selected Kenyan maize lines. Plant and Soil, Dordrecht, v. 377, p. 357-367, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 10. | | MARON, L. G.; PIÑEROS, M. A.; GUIMARAES, C. T.; MAGALHAES, J. V. de; PLEIMAN, J. K.; MAO, C.; SHAFF, J.; BELICUAS, S. N. J; KOCHIAN, L. V. Two functionally distinct members of the MATE (multi-drug and toxic compound extrusion) family of transporters potentially underlie two major aluminum tolerance QTLs in maize. The Plant Journal, Oxford, v. 61, n. 5, p. 728-740, 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 11. | | ALVES, V. M. C.; MAGALHAES, J. V. de; SHAFF, J. E.; PINEROS, M. A.; PURCINO, A. A. C.; PARENTONI, S. N.; PITTA, G. V. E.; PRATES, H. T.; SCHAFFERT, R. E.; KOCHIAN, L. V. Exsudação de ácidos orgânicos como mecanismo de tolerância a alumínio em milho. In: CONGRESSO BRASILEIRO DE FISIOLOGIA VEGETAL, 8., 2001, Ilhéus. Anais... Ilhéus: SBFV, 2001. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 12. | | MELO, J. O.; LANA, U. G. de P.; PIÑEROS, M. A.; ALVES, V. M. C.; GUIMARAES, C. T.; LIU, J.; ZHENG, Y.; ZHONG, S.; FEI, Z.; MARON, L. G.; SCHAFFERT, R. E.; KOCHIAN, L. V.; MAGALHAES, J. V. de. Incomplete transfer of accessory loci influencing SbMATE expression underlies genetic background effects for aluminum tolerance in sorghum. The Plant Journal, Oxford, v. 73, p. 276-288, Jan. 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 13. | | MARON, L. G.; GUIMARAES, C. T.; KIRST, M.; ALBERT, P. S.; BIRCHLER, J. A.; BRADBURY, P. J.; BUCKLER, E. S.; COLUCCIO, A. E.; DANILOVA, T. V.; KUDMA, D.; MAGALHAES, J. V.; PIÑEROS, M. A.; SCHATZ, M. C.; WING, R. A.; KOCHIAN, L. V. Aluminum tolerance in maize is associated with higher MATE 1 gene copy number. Proceedings of the National Academy of Sciences of the United States of America, Washington,v. 110, n. 13, p. 5241-5246, Mar. 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 14. | | MAGALHAES, J. V. de; LIU, J.; GUIMARAES, C. T.; LANA, U. G. de P.; ALVES, V. M. C.; WANG, Y-H.; SCHAFFERT, R. E.; HOEKENGA, O. A.; PINEROS, M. A.; SHAFF, J. E.; KLEIN, P. E.; CARNEIRO, N. P.; COELHO, C. M.; TRICK, H. N.; KOCHIAN, L. V. A gene in the multidrug and toxic compound extrusion (MATE) family confers aluminum tolerance in sorghum. Nature Genetics, New York, v. 39, n. 9, p. 1156-1161, 2007.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| Registros recuperados : 14 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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