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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
15/09/2014 |
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Data da última atualização: |
05/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
REIS, R. R.; CUNHA, B. A. D. B. da; MARTINS, P. K.; MARTINS, M. T. B.; ALEKCEVETCH, J. C.; CHALFUN-JÚNIOR, A.; ANDRADE, A. C.; RIBEIRO, A. P.; QIN, F.; MIZOI, J.; YAMAGUCHI-SHINOZAKI, K.; NAKASHIMA, K.; CARVALHO, J. de F. C.; SOUSA, C. A. F. de; NEPOMUCENO, A. L.; KOBAYASHI, A. K.; MOLINARI, H. B. C. |
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Afiliação: |
RAFAELA RIBEIRO REIS, UNIVERSIDADE FEDERAL DE LAVRAS - UFLA; BARBARA ANDRADE DIAS BRITO DA CUNHA, CNPAE; POLYANA KELLY MARTINS; MARIA THEREZA BAZZO MARTINS; JEAN CARLOS ALEKCEVETCH, UNIVERSIDADE FEDERAL DE LAVRAS - UFLA; ANTÔNIO CHALFUN-JUNIOR, UNIVERSIDADE FEDERAL DE LAVRAS - UFLA; ALAN CARVALHO ANDRADE, CENARGEN; ANA PAULA RIBEIRO, UNIVERSIDADE FEDERAL DE LAVRAS - UFLA; FENG QIN, JIRCAS; JUNYA MIZOI, University of Tokyo; KAZUKO YAMAGUCHI-SHINOZAKI., University of Tokyo; KAZUO NAKASHIMA, JIRCAS; JOSIRLEY DE FÁTIMA CORRÊA CARVALHO; CARLOS ANTONIO FERREIRA DE SOUSA, CNPAE; ALEXANDRE LIMA NEPOMUCENO, SRI; ADILSON KENJI KOBAYASHI, CNPAE; HUGO BRUNO CORREA MOLINARI, CNPAE. |
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Título: |
Induced over-expression of AtDREB2A CA improves drought tolerance in sugarcane. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Plant Science, Limerick, v. 221-222, p. 59-68, May, 2014. |
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Idioma: |
Português |
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Conteúdo: |
Drought is one of the most challenging agricultural issues limiting sustainable sugarcane production and, in some cases, yield losses caused by drought are nearly 50%. DREB proteins play vital regulatory roles in abiotic stress responses in plants. The transcription factor DREB2A interacts with a cis-acting DRE sequence to activate the expression of downstream genes that are involved in drought-, salt- and heat-stress response in Arabidopsis thaliana. In the present study, we evaluated the effects of stress-inducible over-expression of AtDREB2A CA on gene expression, leaf water potential ( L), relative water content (RWC), sucrose content and gas exchanges of sugarcane plants submitted to a four-days water deficit treatment in a rhizotron-grown root system. The plants were also phenotyped by scanning the roots and measuring morphological parameters of the shoot. The stress-inducible expression of AtDREB2A CA in transgenic sugarcane led to the up-regulation of genes involved in plant response to drought stress. The transgenic plants maintained higher RWC and L over 4 days after withholding water and had higher photosynthetic rates until the 3rd day of water-deficit. Induced expression of AtDREB2A CA in sugarcane increased sucrose levels and improved bud sprouting of the transgenic plants. Our results indicate that induced expression of AtDREB2A CA in sugarcane enhanced its drought tolerance without biomass penalty. |
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Palavras-Chave: |
AtDREB2A CA; Transcription factor. |
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Thesaurus Nal: |
abiotic stress. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02478naa a2200349 a 4500
001 1994957
005 2022-04-05
008 2014 bl uuuu u00u1 u #d
100 1 $aREIS, R. R.
245 $aInduced over-expression of AtDREB2A CA improves drought tolerance in sugarcane.$h[electronic resource]
260 $c2014
520 $aDrought is one of the most challenging agricultural issues limiting sustainable sugarcane production and, in some cases, yield losses caused by drought are nearly 50%. DREB proteins play vital regulatory roles in abiotic stress responses in plants. The transcription factor DREB2A interacts with a cis-acting DRE sequence to activate the expression of downstream genes that are involved in drought-, salt- and heat-stress response in Arabidopsis thaliana. In the present study, we evaluated the effects of stress-inducible over-expression of AtDREB2A CA on gene expression, leaf water potential ( L), relative water content (RWC), sucrose content and gas exchanges of sugarcane plants submitted to a four-days water deficit treatment in a rhizotron-grown root system. The plants were also phenotyped by scanning the roots and measuring morphological parameters of the shoot. The stress-inducible expression of AtDREB2A CA in transgenic sugarcane led to the up-regulation of genes involved in plant response to drought stress. The transgenic plants maintained higher RWC and L over 4 days after withholding water and had higher photosynthetic rates until the 3rd day of water-deficit. Induced expression of AtDREB2A CA in sugarcane increased sucrose levels and improved bud sprouting of the transgenic plants. Our results indicate that induced expression of AtDREB2A CA in sugarcane enhanced its drought tolerance without biomass penalty.
650 $aabiotic stress
653 $aAtDREB2A CA
653 $aTranscription factor
700 1 $aCUNHA, B. A. D. B. da
700 1 $aMARTINS, P. K.
700 1 $aMARTINS, M. T. B.
700 1 $aALEKCEVETCH, J. C.
700 1 $aCHALFUN-JÚNIOR, A.
700 1 $aANDRADE, A. C.
700 1 $aRIBEIRO, A. P.
700 1 $aQIN, F.
700 1 $aMIZOI, J.
700 1 $aYAMAGUCHI-SHINOZAKI, K.
700 1 $aNAKASHIMA, K.
700 1 $aCARVALHO, J. de F. C.
700 1 $aSOUSA, C. A. F. de
700 1 $aNEPOMUCENO, A. L.
700 1 $aKOBAYASHI, A. K.
700 1 $aMOLINARI, H. B. C.
773 $tPlant Science, Limerick$gv. 221-222, p. 59-68, May, 2014.
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| 3. |  | MONNERAT, R. G.; PRAÇA, L. B. Bacillus thuringiensis e Bacillus sphaericus. In: OLIVEIRA-FILHO, E. C.; MONNERAT, R. G. (Ed.). Fundamentos para a regulação de semioquímicos, inimigos naturais e agentes microbiológicos de controle de pragas. Planaltina, DF: Embrapa Cerrados, 2006. p. 121-155.| Tipo: Capítulo em Livro Técnico-Científico |
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| 11. | | SANTOS, R. B.; LOPES, J.; MONNERAT, R. G. Avaliação de formulações à base de Bacillus thuringiensis subesp. israelensis no controle de larvas de borrachudos (Diptera:Simuliidae). In: SIMPÓSIO DE CONTROLE BIOLÓGICO, 10., 2007, Brasília, DF. Inovar para preservar a vida. Resumos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2007. (Embrapa Recursos Genéticos e Biotecnologia. Documentos, 250). ID 026| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 13. | | RAMIRO, C. A.; QUEIROZ, P. R.; MONNERAT, R. G. Análise da variabilidade genética de populações de Spdoptera frugiperda (lepidoptera:Noctuidae) em culturas de milho e algodão no Brasil. In: SIMPÓSIO DE CONTROLE BIOLÓGICO, 10., 2007, Brasília, DF. Inovar para preservar a vida. Resumos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2007. (Embrapa Recursos Genéticos e Biotecnologia. Documentos, 250).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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