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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: |
03/03/2009 |
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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: |
LIU, J.; MAGALHAES, J. V.; SHAFF, J.; KOCHIAN, L. |
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Afiliação: |
Jiping Liu, Cornell University; JURANDIR VIEIRA DE MAGALHAES, CNPMS; Jon E. Shaff, Cornell University; Leon V. Kochian, Cornell University. |
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Título: |
Aluminum-activated citrate and malate transporters from the MATE and ALMT families function independently to confer Arabidopsis aluminum tolerance. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
The Plant Journal, Malden, v. 57, n. 3, p. 389-399, 2009. |
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DOI: |
10.1111/j.1365-313X.2008.03696.x |
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Idioma: |
Inglês |
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Conteúdo: |
Aluminum-activated root malate and citrate exudation play an important role in plant Al tolerance. This paper characterizes AtMATE, a homolog of the recently discovered sorghum and barley Al-tolerance genes, shown here to encode an Al-activated citrate transporter in Arabidopsis. Together with the previously characterized Al-activated malate transporter, AtALMT1, this discovery allowed us to examine the relationship in the same species between members of the two gene families for which Al-tolerance genes have been identified. AtMATE is expressed primarily in roots and is induced by Al. An AtMATE T-DNA knockdown line exhibited very low AtMATE expression and Al-activated root citrate exudation was abolished. The AtALMT1 AtMATE double mutant lacked both Al-activated root malate and citrate exudation and showed greater Al sensitivity than the AtALMT1 mutant. Therefore, although AtALMT1 is a major contributor to Arabidopsis Al tolerance, AtMATE also makes a significant but smaller contribution. The expression patterns of AtALMT1 and AtMATE and the profiles of Al-activated root citrate and malate exudation are not affected by the presence or absence of the other gene. These results suggest that AtALMT1-mediated malate exudation and AtMATE-mediated citrate exudation evolved independently to confer Al tolerance in Arabidopsis. However, a link between regulation of expression of the two transporters in response to Al was identified through work on STOP1, a transcription factor that was previously shown to be necessary for AtALMT1 expression. Here we show that STOP1 is also required for AtMATE expression and Al-activated citrate exudation. MenosAluminum-activated root malate and citrate exudation play an important role in plant Al tolerance. This paper characterizes AtMATE, a homolog of the recently discovered sorghum and barley Al-tolerance genes, shown here to encode an Al-activated citrate transporter in Arabidopsis. Together with the previously characterized Al-activated malate transporter, AtALMT1, this discovery allowed us to examine the relationship in the same species between members of the two gene families for which Al-tolerance genes have been identified. AtMATE is expressed primarily in roots and is induced by Al. An AtMATE T-DNA knockdown line exhibited very low AtMATE expression and Al-activated root citrate exudation was abolished. The AtALMT1 AtMATE double mutant lacked both Al-activated root malate and citrate exudation and showed greater Al sensitivity than the AtALMT1 mutant. Therefore, although AtALMT1 is a major contributor to Arabidopsis Al tolerance, AtMATE also makes a significant but smaller contribution. The expression patterns of AtALMT1 and AtMATE and the profiles of Al-activated root citrate and malate exudation are not affected by the presence or absence of the other gene. These results suggest that AtALMT1-mediated malate exudation and AtMATE-mediated citrate exudation evolved independently to confer Al tolerance in Arabidopsis. However, a link between regulation of expression of the two transporters in response to Al was identified through work on STOP1, a transcription factor that w... Mostrar Tudo |
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Palavras-Chave: |
ALMT; Aluminum tolerance; Aluminum toxicity; Multi-drug; Organic cid exudation; Plasma membrane protein; Toxic compound extrusion; Transporter protein. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02515naa a2200265 a 4500
001 1491791
005 2018-05-30
008 2009 bl uuuu u00u1 u #d
024 7 $a10.1111/j.1365-313X.2008.03696.x$2DOI
100 1 $aLIU, J.
245 $aAluminum-activated citrate and malate transporters from the MATE and ALMT families function independently to confer Arabidopsis aluminum tolerance.$h[electronic resource]
260 $c2009
520 $aAluminum-activated root malate and citrate exudation play an important role in plant Al tolerance. This paper characterizes AtMATE, a homolog of the recently discovered sorghum and barley Al-tolerance genes, shown here to encode an Al-activated citrate transporter in Arabidopsis. Together with the previously characterized Al-activated malate transporter, AtALMT1, this discovery allowed us to examine the relationship in the same species between members of the two gene families for which Al-tolerance genes have been identified. AtMATE is expressed primarily in roots and is induced by Al. An AtMATE T-DNA knockdown line exhibited very low AtMATE expression and Al-activated root citrate exudation was abolished. The AtALMT1 AtMATE double mutant lacked both Al-activated root malate and citrate exudation and showed greater Al sensitivity than the AtALMT1 mutant. Therefore, although AtALMT1 is a major contributor to Arabidopsis Al tolerance, AtMATE also makes a significant but smaller contribution. The expression patterns of AtALMT1 and AtMATE and the profiles of Al-activated root citrate and malate exudation are not affected by the presence or absence of the other gene. These results suggest that AtALMT1-mediated malate exudation and AtMATE-mediated citrate exudation evolved independently to confer Al tolerance in Arabidopsis. However, a link between regulation of expression of the two transporters in response to Al was identified through work on STOP1, a transcription factor that was previously shown to be necessary for AtALMT1 expression. Here we show that STOP1 is also required for AtMATE expression and Al-activated citrate exudation.
653 $aALMT
653 $aAluminum tolerance
653 $aAluminum toxicity
653 $aMulti-drug
653 $aOrganic cid exudation
653 $aPlasma membrane protein
653 $aToxic compound extrusion
653 $aTransporter protein
700 1 $aMAGALHAES, J. V.
700 1 $aSHAFF, J.
700 1 $aKOCHIAN, L.
773 $tThe Plant Journal, Malden$gv. 57, n. 3, p. 389-399, 2009.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Agricultura Digital; Embrapa Arroz e Feijão. |
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Data corrente: |
27/03/2013 |
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Data da última atualização: |
27/03/2013 |
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Tipo da produção científica: |
Documentos |
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Autoria: |
SILVA, S. C. da; SOARES, D. M.; ASSAD, E. D. |
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Afiliação: |
SILVANDO CARLOS DA SILVA, CNPAF; DINO MAGALHAES SOARES, CNPAF; EDUARDO DELGADO ASSAD, CNPTIA. |
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Título: |
Importância e onde encontrar os produtos gerados pelo zoneamento de riscos climáticos para as culturas de arroz de terras altas e feijão. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2013. |
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Páginas: |
34 p. |
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Série: |
(Embrapa Arroz e Feijão. Documentos, 284). |
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Idioma: |
Português |
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Conteúdo: |
Introdução. Zoneamento de riscos climáticos e o governo federal. Procedimento técnicos para realização do zoneamento de riscos climáticos. Onde encontrar os produtos na web. Embrapa Arroz e Feijão. Ministério da Agricultura, Pecuária e Abastecimento - Mapa. |
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Palavras-Chave: |
Arroz de terras altas. |
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Thesagro: |
Arroz; Feijão; Oryza sativa; Phaseolus vulgaris; Zoneamento Climático. |
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Thesaurus NAL: |
Zoning. |
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Categoria do assunto: |
--
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/79823/1/seriedocumentos-284.pdf
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Marc: |
LEADER 01040nam a2200241 a 4500
001 1954342
005 2013-03-27
008 2013 bl uuuu u0uu1 u #d
100 1 $aSILVA, S. C. da
245 $aImportância e onde encontrar os produtos gerados pelo zoneamento de riscos climáticos para as culturas de arroz de terras altas e feijão.$h[electronic resource]
260 $aSanto Antônio de Goiás: Embrapa Arroz e Feijão$c2013
300 $a34 p.
490 $a(Embrapa Arroz e Feijão. Documentos, 284).
520 $aIntrodução. Zoneamento de riscos climáticos e o governo federal. Procedimento técnicos para realização do zoneamento de riscos climáticos. Onde encontrar os produtos na web. Embrapa Arroz e Feijão. Ministério da Agricultura, Pecuária e Abastecimento - Mapa.
650 $aZoning
650 $aArroz
650 $aFeijão
650 $aOryza sativa
650 $aPhaseolus vulgaris
650 $aZoneamento Climático
653 $aArroz de terras altas
700 1 $aSOARES, D. M.
700 1 $aASSAD, E. D.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Tipo/Formato |
Classificação |
Cutter |
Registro |
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Fechar
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