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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
28/03/2009 |
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Data da última atualização: |
22/04/2009 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
FREITAS-ASTÚA, F.; SILVA-PINHATI, A. C. O.; BERGER, I. J.; LUCHETA, A. R.; BASÍLIO-PALMIERI, A. C.; AMARAL, A. M. do; BARBOSA, A. V. G.; MACHADO, M. A. |
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Afiliação: |
Juliana Freitas-Ástua, CNPMF; Ana Carla O. Silva-Pinhati, APTA; Irving J. Berger, APTA; Adriano R. Lucheta, APTA; Ana Carolina Basílio-Palmieri, APTA; Alexandre M. do Amaral, CENARGEN; Andréa V.G. Barbosa, APTA; Marcos A. Machado, APTA. |
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Título: |
Putative novel genes involved in the biosynthesis of sweet orange flavonoids. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: THE INTERNATIONAL CONFERENCE ON THE STATUS OF PLANT & ANIMAL GENOME RESEARCH, 16., 2008, San Diego. Final abstracts guide. San Diego: Illumina, 2008.
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Idioma: |
Inglês |
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Notas: |
P19 |
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Conteúdo: |
Flavonoids constitute a major group of secondary metabolites and play important roles in the development, reproduction, defense, and pigmentation of plants. Flavones represent one of the most abundant and important classes of flavonoids, occurring in almost all plant tissues. The formation of flavones is catalyzed by either flavone synthase I or flavone synthase II (FNSII). Both enzymes enable the control of a biosynthetic step at an important junction of this pathway leading not only to flavones but also to various flavonoid classes, as isoflavones, flavonols, flavanols, and anthocyanins. Flavonols are important co-pigments that may affect the shade of the color in flowers and fruits. One of the main enzymes in the flavonol biosynthesis pathway is flavanone-3-hydroxylase (F3H), which follows chalcone isomerase in the pathway and hydroxylates flavanones at the 3´ position to form dihydroflavonols. Analyses of the Citrus EST (CitEST) database revealed the presence of putative novel fnsII and f3h genes involved in the synthesis of flavones and flavonols, respectively, in Citrus sinensis. Even though flavones have been found in several species and varieties within the Citrus genus, this is the first study to report the presence of two copies of the fnsII gene in sweet orange. Moreover, in addition to the available Citf3h gene sequence, we identified another f3h transcript in C. sinensis. Here we report the in silico characterization of such genes expression patterns in different citrus tissues and fruit developmental stages, and provide phylogenetic analyses of their deduced amino acid sequences MenosFlavonoids constitute a major group of secondary metabolites and play important roles in the development, reproduction, defense, and pigmentation of plants. Flavones represent one of the most abundant and important classes of flavonoids, occurring in almost all plant tissues. The formation of flavones is catalyzed by either flavone synthase I or flavone synthase II (FNSII). Both enzymes enable the control of a biosynthetic step at an important junction of this pathway leading not only to flavones but also to various flavonoid classes, as isoflavones, flavonols, flavanols, and anthocyanins. Flavonols are important co-pigments that may affect the shade of the color in flowers and fruits. One of the main enzymes in the flavonol biosynthesis pathway is flavanone-3-hydroxylase (F3H), which follows chalcone isomerase in the pathway and hydroxylates flavanones at the 3´ position to form dihydroflavonols. Analyses of the Citrus EST (CitEST) database revealed the presence of putative novel fnsII and f3h genes involved in the synthesis of flavones and flavonols, respectively, in Citrus sinensis. Even though flavones have been found in several species and varieties within the Citrus genus, this is the first study to report the presence of two copies of the fnsII gene in sweet orange. Moreover, in addition to the available Citf3h gene sequence, we identified another f3h transcript in C. sinensis. Here we report the in silico characterization of such genes expression patterns in differen... Mostrar Tudo |
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Thesagro: |
Composto Fenólico; Flavonóide; Fruta Cítrica; Gene. |
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Categoria do assunto: |
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Marc: |
LEADER 02454naa a2200265 a 4500
001 1655630
005 2009-04-22
008 2008 bl --- 0-- u #d
100 1 $aFREITAS-ASTÚA, F.
245 $aPutative novel genes involved in the biosynthesis of sweet orange flavonoids.
260 $c2008
500 $aP19
520 $aFlavonoids constitute a major group of secondary metabolites and play important roles in the development, reproduction, defense, and pigmentation of plants. Flavones represent one of the most abundant and important classes of flavonoids, occurring in almost all plant tissues. The formation of flavones is catalyzed by either flavone synthase I or flavone synthase II (FNSII). Both enzymes enable the control of a biosynthetic step at an important junction of this pathway leading not only to flavones but also to various flavonoid classes, as isoflavones, flavonols, flavanols, and anthocyanins. Flavonols are important co-pigments that may affect the shade of the color in flowers and fruits. One of the main enzymes in the flavonol biosynthesis pathway is flavanone-3-hydroxylase (F3H), which follows chalcone isomerase in the pathway and hydroxylates flavanones at the 3´ position to form dihydroflavonols. Analyses of the Citrus EST (CitEST) database revealed the presence of putative novel fnsII and f3h genes involved in the synthesis of flavones and flavonols, respectively, in Citrus sinensis. Even though flavones have been found in several species and varieties within the Citrus genus, this is the first study to report the presence of two copies of the fnsII gene in sweet orange. Moreover, in addition to the available Citf3h gene sequence, we identified another f3h transcript in C. sinensis. Here we report the in silico characterization of such genes expression patterns in different citrus tissues and fruit developmental stages, and provide phylogenetic analyses of their deduced amino acid sequences
650 $aComposto Fenólico
650 $aFlavonóide
650 $aFruta Cítrica
650 $aGene
700 1 $aSILVA-PINHATI, A. C. O.
700 1 $aBERGER, I. J.
700 1 $aLUCHETA, A. R.
700 1 $aBASÍLIO-PALMIERI, A. C.
700 1 $aAMARAL, A. M. do
700 1 $aBARBOSA, A. V. G.
700 1 $aMACHADO, M. A.
773 $tIn: THE INTERNATIONAL CONFERENCE ON THE STATUS OF PLANT & ANIMAL GENOME RESEARCH, 16., 2008, San Diego. Final abstracts guide. San Diego: Illumina, 2008.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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| Registros recuperados : 4 | |
| 1. |  | BERGER, I. J.; FREITAS-ÁSTUA, J.; SILVA-PINHATI, A. C. O.; BASILIO-PALMIERI, A. C.; LUCHETA, A. R.; NOVELLI, V. M.; MACHADO, M. A. Chalcone isomerase is likely encoded by a multigene family in citrus sinensis. In: THE INTERNATIONAL CONFERENCE ON THE STATUS OF PLANT & ANIMAL GENOME RESEARCH, 16., 2008, San Diego. Final abstracts guide. San Diego: Illumina, 2008. P21| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 2. | | FREITAS-ASTÚA, F.; SILVA-PINHATI, A. C. O.; BERGER, I. J.; LUCHETA, A. R.; BASÍLIO-PALMIERI, A. C.; AMARAL, A. M. do; BARBOSA, A. V. G.; MACHADO, M. A. Putative novel genes involved in the biosynthesis of sweet orange flavonoids. In: THE INTERNATIONAL CONFERENCE ON THE STATUS OF PLANT & ANIMAL GENOME RESEARCH, 16., 2008, San Diego. Final abstracts guide. San Diego: Illumina, 2008. P19| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 3. | | FREITAS-ÁSTUA, J.; BASTIANEL, M.; LOCALI-FABRIS, E. C.; NOVELLI, V. M.; SILVA-PINHATI, A. C.; BASÍLIO-PALMIERI, A. C.; TARGON, M. L. P. N.; MACHADO, M. A. Differentially expressed stress-related genes in the compatible citrus-Citrus leprosis virus interaction. Genetics and Molecular Biology, Ribeirão Preto, v. 30, n. 3, p. 980-990, 2007.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 4. | | LUCHETA, A. R.; SILVA-PINHATI, A. C. O.; BASÍLIO-PALMIERI, A. C.; BERGER, I. J.; FREITAS-ÁSTUA, J.; CRISTOFANI, M. An in silico analysis of the key genes involved in flavonoid biosynthesis in Citrus sinensis. Genetics and Molecular Biology, Ribeirão Preto, v. 30, n. 3, p. 819-831, 2007.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| Registros recuperados : 4 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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