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 | Acesso ao texto completo restrito à biblioteca da Embrapa Café. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
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Registro Completo |
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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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Registro original: |
Embrapa Café (CNPCa) |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
11/03/2013 |
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Data da última atualização: |
11/03/2013 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SANTANA, H. A.; GOMES, R. da C.; SILVA, S. L.; FERRAZ, J. B. S.; LEME, P. R. |
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Afiliação: |
H. A. SANTANA, USP; RODRIGO DA COSTA GOMES, CNPGC; S. L. SILVA, USP; J. B. S. FERRAZ, USP; P. R. LEME, USP. |
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Título: |
Performance, feed efficiency and ultrasound carcass traits of Nellore cattle with different classes of residual gain. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Journal of Animal Science v.90, (Supplement 3/J); Journal of Dairy Science, v.95, (Supplement 2), p.97-98, 2012. |
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Idioma: |
Inglês |
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Notas: |
Edição dos trabalhos do ADSA-PSA-AMPA-ASAS-CSAS-WSASAS JOINT ANNUAL MEETING, 2012, Phoenix-AR. Ruminant Nutrition: Beef I. M262. |
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Conteúdo: |
The residual gain (RG) was proposed as a measure that estimates the weight gain according to feed intake and body weight (Koch et al., 1963; J. Anim. Sci., 22:486). With the objective to verify the differences between RG classes in performance, feed efficiency and ultrasound carcass traits in Nellore cattle (bulls n = 141, 21-mo old 385 kg initial BW; steers n = 224, 20-mo old, 350 kg initial BW), we computed the average daily gain (ADG), dry matter intake (DMI), feed conversion ratio (F:G), residual feed intake (RFI) and the gain of ribeye area (GREA), gain of backfat thickness (GBFT) and gain of rumpfat thickness (GRFT) measured by ultrasound. |
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Palavras-Chave: |
Bovino de corte. |
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Thesagro: |
Nutrição Animal. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/78696/1/Rodrigo1.pdf
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Marc: |
LEADER 01444nam a2200193 a 4500
001 1952634
005 2013-03-11
008 2012 bl uuuu u00u1 u #d
100 1 $aSANTANA, H. A.
245 $aPerformance, feed efficiency and ultrasound carcass traits of Nellore cattle with different classes of residual gain.$h[electronic resource]
260 $aJournal of Animal Science v.90, (Supplement 3/J); Journal of Dairy Science, v.95, (Supplement 2), p.97-98$c2012
500 $aEdição dos trabalhos do ADSA-PSA-AMPA-ASAS-CSAS-WSASAS JOINT ANNUAL MEETING, 2012, Phoenix-AR. Ruminant Nutrition: Beef I. M262.
520 $aThe residual gain (RG) was proposed as a measure that estimates the weight gain according to feed intake and body weight (Koch et al., 1963; J. Anim. Sci., 22:486). With the objective to verify the differences between RG classes in performance, feed efficiency and ultrasound carcass traits in Nellore cattle (bulls n = 141, 21-mo old 385 kg initial BW; steers n = 224, 20-mo old, 350 kg initial BW), we computed the average daily gain (ADG), dry matter intake (DMI), feed conversion ratio (F:G), residual feed intake (RFI) and the gain of ribeye area (GREA), gain of backfat thickness (GBFT) and gain of rumpfat thickness (GRFT) measured by ultrasound.
650 $aNutrição Animal
653 $aBovino de corte
700 1 $aGOMES, R. da C.
700 1 $aSILVA, S. L.
700 1 $aFERRAZ, J. B. S.
700 1 $aLEME, P. R.
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