|
|
Registro Completo |
Biblioteca(s): |
Embrapa Uva e Vinho. |
Data corrente: |
14/06/2010 |
Data da última atualização: |
01/11/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
CARVALHO, R. F.; QUECINI, V.; PERES, L. E. P. |
Afiliação: |
ROGÉRIO FALLEIROS CARVALHO, ESALQ/USP; VERA MARIA QUECINI, CNPUV; LÁZARO EUSTÁQUIO PEREIRA PERES, ESALQ/USP. |
Título: |
Hormonal modulation of photomorphogenesis-controlles anthocyanin accumulation in tomato (Solanum lycopersicum L. cv Micro-Tom) hypocotyls: physiological and genetic studies. |
Ano de publicação: |
2010 |
Fonte/Imprenta: |
Plant Science, Limerick, v. 178, n. 3, p. 258-264, mar. 2010. |
DOI: |
10.1016/j.plantsci.2010.01.013 |
Idioma: |
Português |
Conteúdo: |
Hormones are likely to be important factors modulating the light-dependent anthocyanin accumulation. Here we analyzed anthocyanin contents in hypocotyls of near isogenic Micro-Tom (MT) tomato lines carrying hormone and phytochrome mutations, as single and double-mutant combinations. In order to recapitulate mutant phenotype, exogenous hormone applications were also performed. Anthocyanin accumulation was promoted by exogenous abscisic acid (ABA) and inhibited by gibberellin (GA), in accordance to the reduced anthocyanin contents measured in ABA-deficient (notabilis) and GA-constitutive response (procera) mutants. Exogenous cytokinin also enhanced anthocyanin levels in MT hypocotyls. Although auxin-insensitive diageotropica mutant exhibited higher anthocyanin contents, pharmacological approaches employing exogenous auxin and a transport inhibitor did not support a direct role of the hormone in anthocyanin accumulation. Analysis of mutants exhibiting increased ethylene production (epinastic) or reduced sensitivity (Never ripe), together with pharmacological data obtained from plants treated with the hormone, indicated a limited role for ethylene in anthocyanin contents. Phytochrome-deficiency (aurea) and hormone double-mutant combinations exhibited phenotypes suggesting additive or synergistic interactions, but not fully espistatic ones, in the control of anthocyanin levels in tomato hypocotyls. Our results indicate that phytochrome-mediated anthocyanin accumulation in tomato hypocotyls is modulated by distinct hormone classes via both shared and independent pathways. MenosHormones are likely to be important factors modulating the light-dependent anthocyanin accumulation. Here we analyzed anthocyanin contents in hypocotyls of near isogenic Micro-Tom (MT) tomato lines carrying hormone and phytochrome mutations, as single and double-mutant combinations. In order to recapitulate mutant phenotype, exogenous hormone applications were also performed. Anthocyanin accumulation was promoted by exogenous abscisic acid (ABA) and inhibited by gibberellin (GA), in accordance to the reduced anthocyanin contents measured in ABA-deficient (notabilis) and GA-constitutive response (procera) mutants. Exogenous cytokinin also enhanced anthocyanin levels in MT hypocotyls. Although auxin-insensitive diageotropica mutant exhibited higher anthocyanin contents, pharmacological approaches employing exogenous auxin and a transport inhibitor did not support a direct role of the hormone in anthocyanin accumulation. Analysis of mutants exhibiting increased ethylene production (epinastic) or reduced sensitivity (Never ripe), together with pharmacological data obtained from plants treated with the hormone, indicated a limited role for ethylene in anthocyanin contents. Phytochrome-deficiency (aurea) and hormone double-mutant combinations exhibited phenotypes suggesting additive or synergistic interactions, but not fully espistatic ones, in the control of anthocyanin levels in tomato hypocotyls. Our results indicate that phytochrome-mediated anthocyanin accumulation in tomato ... Mostrar Tudo |
Palavras-Chave: |
Fitocromo. |
Thesagro: |
Antocianina; Biologia; Genética; Hipocótilo; Hormônio; Mutação; Tomate. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/204149/1/12305-2010-p.258-264-2.pdf
|
Marc: |
LEADER 02395naa a2200253 a 4500 001 1854948 005 2019-11-01 008 2010 bl uuuu u00u1 u #d 024 7 $a10.1016/j.plantsci.2010.01.013$2DOI 100 1 $aCARVALHO, R. F. 245 $aHormonal modulation of photomorphogenesis-controlles anthocyanin accumulation in tomato (Solanum lycopersicum L. cv Micro-Tom) hypocotyls$bphysiological and genetic studies.$h[electronic resource] 260 $c2010 520 $aHormones are likely to be important factors modulating the light-dependent anthocyanin accumulation. Here we analyzed anthocyanin contents in hypocotyls of near isogenic Micro-Tom (MT) tomato lines carrying hormone and phytochrome mutations, as single and double-mutant combinations. In order to recapitulate mutant phenotype, exogenous hormone applications were also performed. Anthocyanin accumulation was promoted by exogenous abscisic acid (ABA) and inhibited by gibberellin (GA), in accordance to the reduced anthocyanin contents measured in ABA-deficient (notabilis) and GA-constitutive response (procera) mutants. Exogenous cytokinin also enhanced anthocyanin levels in MT hypocotyls. Although auxin-insensitive diageotropica mutant exhibited higher anthocyanin contents, pharmacological approaches employing exogenous auxin and a transport inhibitor did not support a direct role of the hormone in anthocyanin accumulation. Analysis of mutants exhibiting increased ethylene production (epinastic) or reduced sensitivity (Never ripe), together with pharmacological data obtained from plants treated with the hormone, indicated a limited role for ethylene in anthocyanin contents. Phytochrome-deficiency (aurea) and hormone double-mutant combinations exhibited phenotypes suggesting additive or synergistic interactions, but not fully espistatic ones, in the control of anthocyanin levels in tomato hypocotyls. Our results indicate that phytochrome-mediated anthocyanin accumulation in tomato hypocotyls is modulated by distinct hormone classes via both shared and independent pathways. 650 $aAntocianina 650 $aBiologia 650 $aGenética 650 $aHipocótilo 650 $aHormônio 650 $aMutação 650 $aTomate 653 $aFitocromo 700 1 $aQUECINI, V. 700 1 $aPERES, L. E. P. 773 $tPlant Science, Limerick$gv. 178, n. 3, p. 258-264, mar. 2010.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Uva e Vinho (CNPUV) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registros recuperados : 13 | |
2. | | RAMM, A.; SCHUCH, M. W.; VIZZOTTO, M.; TOMAZ, Z. F. P.; TIMM, C. R. F. atividade antioxidante em frutos´maciel´ enxertada em porta-enxerto clonal e via semente. In: ENCUENTRO LATINOAMERICANO PRUNUS SIN FRONTERAS, 6., 2015, Pelotas. Anais... Brasília, DF: Embrapa, 2015. p. 166-168.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Clima Temperado. |
| |
4. | | TIMM, C. R. F.; SCHUCH, M. W.; TOMAZ, Z. F. P.; MAYER, N. A. Enraizamento de miniestacas a partir de ramos herbáceos de porta-enxertos de pessegueiro, em diferentes substratos. Revista Inova Ciência e Tecnologia, Uberaba, p. 18-22, ano 1, n. 1, set./dez., 2015Tipo: Artigo em Periódico Indexado | Circulação/Nível: C - 0 |
Biblioteca(s): Embrapa Clima Temperado. |
| |
7. | | FAGUNDES, C. M.; MOREIRA, R. M.; TIMM, C. R. F.; SILVA, J. B.; ANTUNES, L. E. C.; SCHUCH, M. W. Collection periods in the in vitro establishment of raspberry tree cultivars. Agronomy Science and Biotechnology, v, 2, n., 2, p. 92-98, 2016.Tipo: Artigo em Periódico Indexado | Circulação/Nível: C - 0 |
Biblioteca(s): Embrapa Clima Temperado. |
| |
8. | | FISCHER, D. L. deO.; FACHINELLO, J. C.; ANTUNES, L. E. C.; TIMM, C. R. F.; GIACOBBO, C. L. Efeito do ácido idolbutirico e da cultivar no enraizamento de estacas lenhosas de mirtillo. In: CONGRESO NACIONAL DE LA SOCIEDAD URUGUAYA DE HORTIFRUTICULTURA, 11.; CONGRESO PANAMERICANO PROMOCIÓN DEL CONSUMO DE FRUTAS Y HORTALIZAS, 3., 2007, Montevideo. Resumos... Montevideo : Sociedad Uruguaya de Hortifruticultura, 2007. 1 CD-ROM.Tipo: Resumo em Anais de Congresso | Circulação/Nível: -- - -- |
Biblioteca(s): Embrapa Clima Temperado. |
| |
9. | | RAMM, A.; SOUZA, A. L. K. de; MONICA-BERTO, R.; TIMM, C. R. F.; SCHUCH, M. W.; VIZZOTTO, M. Development of 'Maciel' peach trees on different propagation systems. Revista Brasileira de Fruticultura, Jaboticabal, v. 40, n. 4, p. 1-10, 2018.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
Biblioteca(s): Embrapa Clima Temperado. |
| |
10. | | FISCHER, D. L. de O.; FACHINELLO, J. C.; ANTUNES, L. E. C.; TIMM, C. R. F.; GIACOBBO, C. L. Enraizamento de estacas semilenhosas de mirtilo sob o efeito de diferentes concentrações de ácido indolbutírico. Revista Brasileira de Fruticultura, Jaboticabal, v. 30, n. 2, p. 557-559, 2008.Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - A |
Biblioteca(s): Embrapa Clima Temperado. |
| |
13. | | ANDRADE, S. B. de; TIMM, C. R. F.; LIMA, C. S. M.; LIMA, T. S.; RUFATO, A. de R.; FACHINELLO, J. C. Caracterização física de flores de marmeleiros. In: ENCONTRO NACIONAL SOBRE FRUTICULTURA DE CLIMA TEMPERADO, 13., 2013, Fraiburgo. Anais... Caçador: Epagri, 2013. p. 121. Resumo.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Uva e Vinho. |
| |
Registros recuperados : 13 | |
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|