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Registro Completo |
Biblioteca(s): |
Embrapa Agroenergia. |
Data corrente: |
07/03/2014 |
Data da última atualização: |
20/09/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
REIS, R. R.; DIAS, B. B. A.; MARTINS, P. K.; MARTINS, M. T. B.; ALEKCEVETCH, J. C.; JÚNIOR, A. C.; ANDRADE, A. C.; RIBEIRO, A. P.; QIND, F.; MIZOI, J.; SHINOZAKI, K. I.; NAKASHIMA, K.; CARVALHO, J. de F. C.; SOUSA, C. A. F. de; NEPOMUCENO, A. L.; KOBAYASHI, A. K.; MOLINARI, H. B. C. |
Afiliação: |
Rafaela Ribeiro Reis, Universidade Federal de Lavras; BARBARA ANDRADE DIAS BRITO DA CUNHA, CNPAE; Polyana Kelly Martins; Maria Thereza Bazzo Martins; Jean Carlos Alekcevetch, Universidade Federal de Lavras; Antônio Chalfun-Júnior, Universidade Federal de Lavras; ALAN CARVALHO ANDRADE, CENARGEN; Ana Paula Ribeiro, Universidade Federal de Lavras; Feng Qind, Chinese Academy of Sciences; Junya Mizoi, The University of Tokyo; Kazuko Yamaguchi-Shinozaki, The University of Tokyo; Kazuo Nakashima, Chinese Academy of Sciences; Josirley de Fátima Corrêa Carvalho; CARLOS ANTONIO FERREIRA DE SOUSA, CNPAE; ALEXANDRE LIMA NEPOMUCENO, SRI; ADILSON KENJI KOBAYASHI, CNPAE; HUGO BRUNO CORREA MOLINARI, CNPAE. |
Título: |
Induced over-expression of AtDREB2A CA improves drought tolerancein sugarcane. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Plant Science, v. 221-222, p. 59-68, 2014. |
DOI: |
10.1016/j.plantsci.2014.02.003 |
Idioma: |
Inglês |
Conteúdo: |
tDrought 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 rolesin abiotic stress responses in plants. The transcription factor DREB2A interacts with a cis-acting DREsequence 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-inducibleover-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 deficittreatment in a rhizotron-grown root system. The plants were also phenotyped by scanning the roots andmeasuring morphological parameters of the shoot. The stress-inducible expression of AtDREB2A CA intransgenic sugarcane led to the up-regulation of genes involved in plant response to drought stress. Thetransgenic plants maintained higher RWC and Lover 4 days after withholding water and had higherphotosynthetic rates until the 3rd day of water-deficit. Induced expression of AtDREB2A CA in sugarcaneincreased sucrose levels and improved bud sprouting of the transgenic plants. Our results indicate thatinduced expression of AtDREB2A CA in sugarcane enhanced its drought tolerance without biomass penalty. |
Palavras-Chave: |
AtDREB2A CA; Saccharum spp; Transcription factor. |
Thesaurus Nal: |
abiotic stress. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02480naa a2200373 a 4500 001 1981800 005 2017-09-20 008 2014 bl uuuu u00u1 u #d 024 7 $a10.1016/j.plantsci.2014.02.003$2DOI 100 1 $aREIS, R. R. 245 $aInduced over-expression of AtDREB2A CA improves drought tolerancein sugarcane.$h[electronic resource] 260 $c2014 520 $atDrought 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 rolesin abiotic stress responses in plants. The transcription factor DREB2A interacts with a cis-acting DREsequence 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-inducibleover-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 deficittreatment in a rhizotron-grown root system. The plants were also phenotyped by scanning the roots andmeasuring morphological parameters of the shoot. The stress-inducible expression of AtDREB2A CA intransgenic sugarcane led to the up-regulation of genes involved in plant response to drought stress. Thetransgenic plants maintained higher RWC and Lover 4 days after withholding water and had higherphotosynthetic rates until the 3rd day of water-deficit. Induced expression of AtDREB2A CA in sugarcaneincreased sucrose levels and improved bud sprouting of the transgenic plants. Our results indicate thatinduced expression of AtDREB2A CA in sugarcane enhanced its drought tolerance without biomass penalty. 650 $aabiotic stress 653 $aAtDREB2A CA 653 $aSaccharum spp 653 $aTranscription factor 700 1 $aDIAS, B. B. A. 700 1 $aMARTINS, P. K. 700 1 $aMARTINS, M. T. B. 700 1 $aALEKCEVETCH, J. C. 700 1 $aJÚNIOR, A. C. 700 1 $aANDRADE, A. C. 700 1 $aRIBEIRO, A. P. 700 1 $aQIND, F. 700 1 $aMIZOI, J. 700 1 $aSHINOZAKI, K. I. 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 $tPlant Science$gv. 221-222, p. 59-68, 2014.
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Embrapa Agroenergia (CNPAE) |
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Registro Completo
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
24/02/2015 |
Data da última atualização: |
02/01/2024 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
FONTENELE, R. G.; OLIVEIRA, L. B.; CAVALCANTE, A. C. R. |
Afiliação: |
Renato Gomes Fontinele; Leydiane Bezerra Oliveira; ANA CLARA RODRIGUES CAVALCANTE, CNPC. |
Título: |
Adubação verde sobre a cultura do milho em sistema agrossilvipastoril. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
In: ENCONTRO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA CAPRINOS E OVINOS, 3., 2014, Sobral. Anais... Sobral: Embrapa Caprinos e Ovinos, 2014. p. 23. |
Idioma: |
Português |
Palavras-Chave: |
Densidade; Maize; SPAD. |
Thesagro: |
Adubaçao verde; Biomassa; Milho; Zea mays. |
Thesaurus NAL: |
Biomass; Green manures; Organic fertilizers. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 00766nam a2200241 a 4500 001 2009577 005 2024-01-02 008 2014 bl uuuu u00u1 u #d 100 1 $aFONTENELE, R. G. 245 $aAdubação verde sobre a cultura do milho em sistema agrossilvipastoril.$h[electronic resource] 260 $aIn: ENCONTRO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA CAPRINOS E OVINOS, 3., 2014, Sobral. Anais... Sobral: Embrapa Caprinos e Ovinos, 2014. p. 23.$c2014 650 $aBiomass 650 $aGreen manures 650 $aOrganic fertilizers 650 $aAdubaçao verde 650 $aBiomassa 650 $aMilho 650 $aZea mays 653 $aDensidade 653 $aMaize 653 $aSPAD 700 1 $aOLIVEIRA, L. B. 700 1 $aCAVALCANTE, A. C. R.
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