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| Registros recuperados : 16 | |
| 9. |  | TOFANELLI, M. B. D.; CHALFUN, N. N. J.; HOFFMANN, A.; CHALFUN JÚNIOR, A. Efeito do ácido indolbutírico no enraizamento de estacas de ramos semilenhosos de pessegueiro. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 37, n. 7, p. 939-944, jul. 2002 Título em inglês: Effect of indolebutyric acid on rooting ability of semihardwood stem cuttings of peach.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 11. | | GUIMARÃES, N. C. C.; TORGA, P. P.; RESENDE, E. C.; CHALFUN JUNIOR, A.; PAIVA, E.; PAIVA, L. V. Identificação de variantes somaclonais em bananeiras 'Prata Anã', utilizando técnicas moleculares e citogenéticas. Ciência e Agrotecnologia, Lavras, v. 33, n. 2, p. 448-454, 2009.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 12. | | SÁGIO, S. A.; LIMA, A. A.; BARRETO, H. G.; CARVALHO, C. H. S. de; PAIVA, L. V.; CHALFUN-JUNIOR, A. Physiological and molecular analyses of early and late Coffea arabica cultivars at different stages of fruit ripening. Acta Physiologiae Plantarum, v. 35, n. 11, p. 3091-3098, 2014.| Biblioteca(s): Embrapa Café. |
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| 13. | | LACERDA, G. A.; CHALFUN-JÚNIOR, A.; PAIVA, L. V.; MELO, E. F.; OLIVEIRA, A. C. S. de; REZENDE, J. C. de. Influência de reguladores de crescimento no desenvolvimento radicular de sementes de Coffea arabica L. rubi in vitro. Coffee science, Lavras, v. 3, n. 1, p. 81-84, jan./jun. 2008. Nota prévia.| Biblioteca(s): Embrapa Agricultura Digital. |
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| 14. | | SANTOS, Y. D.; PEREIRA, W. A.; PAULA, C. M. P. de; RUME, G. de C.; LIMA, A. A.; CHALFUN-JUNIOR, A.; SOUZA SOBRINHO, F. de; TECHIO, V. H. Epigenetic marks associated to the study of nucleolar dominance in Urochloa P. Beauv. Plant Molecular Biology Reporter, v. 38, p. 380-393, 2020.| Biblioteca(s): Embrapa Gado de Leite. |
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| 15. | | CHALFUN JUNIOR, A.; CHAVES, S. S.; SILVA, G. F. F. e; VALENTIM, F. L.; FERRARA BARBOSA, B. C.; PAIVA, L. V.; ANDRADE, A. C. Analysis of the expression pattern OF miRNAs, by Stem-Loop RT-PCR, in coffee species with different ploidy levels. In: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 2012, San José. Proceedings... [S.l]: Association for Science and Information on Coffee (ASIC), 2012. p. 64.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 16. | | REIS, R. R.; CUNHA, B. A. D. B. da; MARTINS, P. K.; MARTINS, M. T. B.; ALEKCEVETCH, J. C.; CHALFUN-JÚNIOR, A.; ANDRADE, A. C.; RIBEIRO, A. P.; QIN, F.; MIZOI, J.; YAMAGUCHI-SHINOZAKI, K.; NAKASHIMA, K.; CARVALHO, J. de F. C.; SOUSA, C. A. F. de; NEPOMUCENO, A. L.; KOBAYASHI, A. K.; MOLINARI, H. B. C. Induced over-expression of AtDREB2A CA improves drought tolerance in sugarcane. Plant Science, Limerick, v. 221-222, p. 59-68, May, 2014.| Biblioteca(s): Embrapa Soja. |
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| Registros recuperados : 16 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Café. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
05/01/2024 |
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Data da última atualização: |
05/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SÁGIO, S. A.; LIMA, A. A.; BARRETO, H. G.; CARVALHO, C. H. S. de; PAIVA, L. V.; CHALFUN-JUNIOR, A. |
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Afiliação: |
SOLANGE APARECIDA SÁGIO, UNIVERSIDADE FEDERAL DE LAVRAS; ANDRÉ ALMEIDA LIMA, UNIVERSIDADE FEDERAL DE LAVRAS; HORLLYS GOMES BARRETO, UNIVERSIDADE FEDERAL DE LAVRAS; CARLOS HENRIQUE S DE CARVALHO, CNPCa; LUCIANO VILELA PAIVA, UNIVERSIDADE FEDERAL DE LAVRAS; ANTONIO CHALFUN-JUNIOR, UNIVERSIDADE FEDERAL DE LAVRAS. |
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Título: |
Physiological and molecular analyses of early and late Coffea arabica cultivars at different stages of fruit ripening. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Acta Physiologiae Plantarum, v. 35, n. 11, p. 3091-3098, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
Coffee quality is strongly influenced by a great number of factors, among which the fruit ripening stage at harvest time has a major influence on this feature. Studies comprising ethylene production and the regulation of ethylene biosynthesis genes during the ripening process indicate that ethylene plays an important role on coffee fruit ripening. Coffee early cultivars usually show a more uniform ripening process although little is known about the genetic factors that promote the earliness of ripening. Thus, in order to better understand the physiological and genetic factors involved in the regulation of ripening time, and consequently ripening uniformity, this study aimed to analyze ethylene and respiration patterns during coffee ripening, as well as to analyze ACC oxidase, an ethylene biosynthesis enzyme, gene expression, in fruits of early (Catucai 785-15) and late (Acau) coffee cultivars. Coffee fruits were harvested monthly from 124 days after flowering (end of February), until complete maturation (end of June). Dry matter, moisture content, color, respiratory rate and ethylene production analysis were performed. In silico analysis identified a coffee ACC oxidase gene (CaACO-like) and its expression was analyzed by real-time PCR. Dry matter and relative water content constantly increased and gradually decreased, respectively, during fruit ripening, and the color analysis enabled the observation of the earliness in the ripening process displayed by Catucai 785-15 and its higher fruit ripening uniformity. The results obtained from the CaACO-like expression analysis and respiration and ethylene analysis suggest that the differences in ripening behavior between the two coffee cultivars analyzed in this study may be related to the differences in their capacity to produce ethylene, with fruits of Catucai 785-15 and Acau showing a typical and an attenuated climacteric phase, respectively, which may have lead to differences in their ripening time and uniformity. MenosCoffee quality is strongly influenced by a great number of factors, among which the fruit ripening stage at harvest time has a major influence on this feature. Studies comprising ethylene production and the regulation of ethylene biosynthesis genes during the ripening process indicate that ethylene plays an important role on coffee fruit ripening. Coffee early cultivars usually show a more uniform ripening process although little is known about the genetic factors that promote the earliness of ripening. Thus, in order to better understand the physiological and genetic factors involved in the regulation of ripening time, and consequently ripening uniformity, this study aimed to analyze ethylene and respiration patterns during coffee ripening, as well as to analyze ACC oxidase, an ethylene biosynthesis enzyme, gene expression, in fruits of early (Catucai 785-15) and late (Acau) coffee cultivars. Coffee fruits were harvested monthly from 124 days after flowering (end of February), until complete maturation (end of June). Dry matter, moisture content, color, respiratory rate and ethylene production analysis were performed. In silico analysis identified a coffee ACC oxidase gene (CaACO-like) and its expression was analyzed by real-time PCR. Dry matter and relative water content constantly increased and gradually decreased, respectively, during fruit ripening, and the color analysis enabled the observation of the earliness in the ripening process displayed by Catucai 785-15 and it... Mostrar Tudo |
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Thesaurus NAL: |
Coffea arabica var. arabica; Cultivars; Ethylene; Fruits; Ripening. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02725naa a2200241 a 4500
001 2160479
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100 1 $aSÁGIO, S. A.
245 $aPhysiological and molecular analyses of early and late Coffea arabica cultivars at different stages of fruit ripening.$h[electronic resource]
260 $c2014
520 $aCoffee quality is strongly influenced by a great number of factors, among which the fruit ripening stage at harvest time has a major influence on this feature. Studies comprising ethylene production and the regulation of ethylene biosynthesis genes during the ripening process indicate that ethylene plays an important role on coffee fruit ripening. Coffee early cultivars usually show a more uniform ripening process although little is known about the genetic factors that promote the earliness of ripening. Thus, in order to better understand the physiological and genetic factors involved in the regulation of ripening time, and consequently ripening uniformity, this study aimed to analyze ethylene and respiration patterns during coffee ripening, as well as to analyze ACC oxidase, an ethylene biosynthesis enzyme, gene expression, in fruits of early (Catucai 785-15) and late (Acau) coffee cultivars. Coffee fruits were harvested monthly from 124 days after flowering (end of February), until complete maturation (end of June). Dry matter, moisture content, color, respiratory rate and ethylene production analysis were performed. In silico analysis identified a coffee ACC oxidase gene (CaACO-like) and its expression was analyzed by real-time PCR. Dry matter and relative water content constantly increased and gradually decreased, respectively, during fruit ripening, and the color analysis enabled the observation of the earliness in the ripening process displayed by Catucai 785-15 and its higher fruit ripening uniformity. The results obtained from the CaACO-like expression analysis and respiration and ethylene analysis suggest that the differences in ripening behavior between the two coffee cultivars analyzed in this study may be related to the differences in their capacity to produce ethylene, with fruits of Catucai 785-15 and Acau showing a typical and an attenuated climacteric phase, respectively, which may have lead to differences in their ripening time and uniformity.
650 $aCoffea arabica var. arabica
650 $aCultivars
650 $aEthylene
650 $aFruits
650 $aRipening
700 1 $aLIMA, A. A.
700 1 $aBARRETO, H. G.
700 1 $aCARVALHO, C. H. S. de
700 1 $aPAIVA, L. V.
700 1 $aCHALFUN-JUNIOR, A.
773 $tActa Physiologiae Plantarum$gv. 35, n. 11, p. 3091-3098, 2014.
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