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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
10/01/2024 |
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Data da última atualização: |
10/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MOLINARI, H. B. C.; MARUR, C. J.; BESPALHOK FILHO, J. C.; KOBAYASHI, A. K.; PILEGGI, M.; LEITE JÚNIOR, R. P.; PEREIRA, L. F. P.; VIEIRA, L. G. E. |
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Afiliação: |
HUGO BRUNO CORREA MOLINARI, INSTITUTO AGRONÔMICO DO PARANÁ; CELSO JAMIL MARUR, INSTITUTO AGRONÔMICO DO PARANÁ; JOÃO CARLOS BESPALHOK FILHO, INSTITUTO AGRONÔMICO DO PARANÁ; ADILSON KENJI KOBAYASHI, CNPMF; MARCOS PILEGGI, UNIVERSIDADE ESTADUAL DE PONTA GROSSA; RUI PEREIRA LEITE JÚNIOR, INSTITUTO AGRONÔMICO DO PARANÁ; LUIZ FILIPE PROTASIO PEREIRA, CNPCa; LUIZ GONZAGA ESTEVES VIEIRA, INSTITUTO AGRONÔMICO DO PARANÁ. |
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Título: |
Osmotic adjustment in transgenic citrus rootstock Carrizo citrange (Citrus sinensis Osb. x Poncirus trifoliata L. Raf.) overproducing proline. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Plant Science, v. 167, n. 6, p. 1375-1381, 2004. |
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Idioma: |
Inglês |
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Conteúdo: |
In the present study, we have analyzed transformed plants of the citrus rootstock Carrizo citrange constitutively expressing a Δ1-pyrroline-5-carboxylate synthetase mutant gene (p5cs), which encodes the rate-limiting enzyme of the proline biosynthetic pathway. Transgenic plants grew normally in vivo and accumulated high levels of proline in the leaves. In well-watered conditions, the photosynthetic rate of Carrizo citrange transgenic plants was not significantly different from the non-transformed control. The transgenic plants presented superior osmotic adjustment and significantly higher photosynthetic rate than the control plants after 15 days without watering. Under water deficit, the leaf water potential of non-transformed plants was close to zero after 17 days, and the photosynthetic rate was almost null 2 days later. On the other hand, in transgenic plants similar measurements were only observed after 24 days of water stress. The use of citrus rootstocks with increased proline accumulation appears to be a promising approach to maintain the productivity of plants under drought stress condition. |
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Thesaurus Nal: |
Citrus; Drought tolerance; Osmotic treatment; Proline; Transgenic plants. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01941naa a2200265 a 4500
001 2160639
005 2024-01-10
008 2004 bl uuuu u00u1 u #d
100 1 $aMOLINARI, H. B. C.
245 $aOsmotic adjustment in transgenic citrus rootstock Carrizo citrange (Citrus sinensis Osb. x Poncirus trifoliata L. Raf.) overproducing proline.$h[electronic resource]
260 $c2004
520 $aIn the present study, we have analyzed transformed plants of the citrus rootstock Carrizo citrange constitutively expressing a Δ1-pyrroline-5-carboxylate synthetase mutant gene (p5cs), which encodes the rate-limiting enzyme of the proline biosynthetic pathway. Transgenic plants grew normally in vivo and accumulated high levels of proline in the leaves. In well-watered conditions, the photosynthetic rate of Carrizo citrange transgenic plants was not significantly different from the non-transformed control. The transgenic plants presented superior osmotic adjustment and significantly higher photosynthetic rate than the control plants after 15 days without watering. Under water deficit, the leaf water potential of non-transformed plants was close to zero after 17 days, and the photosynthetic rate was almost null 2 days later. On the other hand, in transgenic plants similar measurements were only observed after 24 days of water stress. The use of citrus rootstocks with increased proline accumulation appears to be a promising approach to maintain the productivity of plants under drought stress condition.
650 $aCitrus
650 $aDrought tolerance
650 $aOsmotic treatment
650 $aProline
650 $aTransgenic plants
700 1 $aMARUR, C. J.
700 1 $aBESPALHOK FILHO, J. C.
700 1 $aKOBAYASHI, A. K.
700 1 $aPILEGGI, M.
700 1 $aLEITE JÚNIOR, R. P.
700 1 $aPEREIRA, L. F. P.
700 1 $aVIEIRA, L. G. E.
773 $tPlant Science$gv. 167, n. 6, p. 1375-1381, 2004.
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Embrapa Café (CNPCa) |
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| Registros recuperados : 3 | |
| 1. |  | FONSECA, N. R.; OLIVEIRA, L. S. S.; GUIMARÃES, L M. S.; TEIXEIRA, R. U.; LOPES, C. A.; ALFENAS, A. C. An efficient inoculation method of Ralstonia solanacearum to test wilt resistance in Eucalyptus spp. Tropical Plant Pathology, Brasília, DF, v. 41, n. 1, p. 42-47, Feb. 2016.| Tipo: Nota Técnica/Nota Científica |
| Biblioteca(s): Embrapa Hortaliças. |
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| 2. | | FONSECA, N. R.; OLIVEIRA, L. S. S.; GUIMARÃES, L. M. S.; ALFENAS, A. C; LOPES, C. A; EMBRAPA HORTALIÇAS. Inoculação de Ralstonia solanacearum em mudas clonais de Eucalyptus spp. Tropical Plant Pathology, Brasília, DF, v. 33, p. S267, ago. 2008. Suplemento. Resumo FLO 006. Trabalho apresentado no 41. Congresso Brasileiro de Fitopatologia, 41. Annual meeting of the Brazilian Phytophatological Society, Belo Horizonte, 2008.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Hortaliças. |
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| 3. | | FONSECA, N. R.; GUIMARÃES, L. M. D. S.; HERMENEGILDO, P. S.; TEIXEIRA, R. U.; LOPES, C. A.; ALFENAS, A. C. Phytotypes and sequevars of Ralstonia solanacearum infecting Eucalyptus spp. in Brazil. In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 46.; REUNIÃO BRASILEIRA DE CONTROLE BIOLÓGICO, 11., 2013, Ouro Preto. Expofito. Ouro Preto: UFV, 2013. Resumo 141-1.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Hortaliças. |
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| Registros recuperados : 3 | |
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