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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: |
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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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
005 2024-01-05
008 2014 bl uuuu u00u1 u #d
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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Registro original: |
Embrapa Café (CNPCa) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
25/11/2019 |
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Data da última atualização: |
25/11/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
ABDALLA FILHO, A. L.; LIMA, P. de M. T.; SAKITA, G. Z.; SILVA, T. P. D. e; COSTA. W. dos S. da; GHINI, R.; ABDALLA, A. L.; PICCOLO, M. de C. |
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Afiliação: |
ADIBE LUIZ ABDALLA FILHO, CENA-USP; PAULO DE MELLO TAVARES LIMA, CENA-USP; GABRIEL ZANUTO SAKITA, CENA-USP; TAIRON PAZZNINZIO DIAS E SILVA, CENA-USP; WILIAM DOS SANTOS DA COSTA, CENA-USP; RAQUEL GHINI, CNPMA; ADIBE LUIZ ABDALLA, CENA-USP; MARISA DE CASSI PICCOLO, CENA-USP. |
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Título: |
CO2 fertilization does not affect biomass production and nutritive value of a C-4 tropical grass in short timeframe. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Grass and Forage Science, v. 74, n. 4, p. 670-677, 2019. |
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ISSN: |
1365-2494 |
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DOI: |
https://doi.org/10.1111/gfs.12443 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Increased atmospheric carbon dioxide (CO 2 ) is a consequence of recent anthropogenic environmental changes, and few studies have evaluated its effects on tropical grasses used in Brazilian pastures, the main feed source for major part of ruminant livestock. This study evaluated forage production, chemical composition, in vitro total gas pro‐ duction and organic matter degradability of Brachiaria brizantha under contrasting CO 2 atmospheric conditions in a free air carbon dioxide enrichment (FACE) facility. The forage plants were sown in each of the 12 octagonal rings of the FACE facility: six under ambient atmospheric CO 2 concentration of approximately 390 μmol/mol, here‐ after referred to as control (CON) plots, and other six rings enriched with pure CO 2 flux to achieve a target CO 2 concentration of 550 μmol/mol, hereafter called elevated CO 2 (eCO 2 ) plots. Soil samples were collected to determine carbon and nitrogen con‐ centrations. After seventy days of sowing, a standardization cutting was performed and then at regular intervals of 21 days the forage was harvested (ten harvest dates) and forwarded to laboratorial analyses. Forage above‐ground biomass production (dry matter (DM): 6,143 vs. 6,554 kg/ha), as well as morphological characteristics (leaves: 71% vs. 68%; stem: 28% vs. 31%), chemical composition (crude protein: 162.9 vs. 161.8; neutral detergent fibre: 663.8 vs. 664.3; acid detergent fibre: 369.5 vs. 381; lignin: 60.1 vs. 64.1 g/kg DM; total C: 45.9 vs. 45.9; total N: 2.8 vs. 2.8; total S: 0.2% vs. 0.2%), organic matter in vitro degradability (573.5 vs. 585.3 g/kg), methane (5.7 vs. 4.3 ml/g DM) and total gas (128.3 vs. 94.5 ml/g DM) production did not differ signifi‐ cantly between CON and eCO 2 treatments (p > .05). The results indicated that at least under short‐term enrichment, B. brizantha was not affected by eCO 2 . MenosAbstract: Increased atmospheric carbon dioxide (CO 2 ) is a consequence of recent anthropogenic environmental changes, and few studies have evaluated its effects on tropical grasses used in Brazilian pastures, the main feed source for major part of ruminant livestock. This study evaluated forage production, chemical composition, in vitro total gas pro‐ duction and organic matter degradability of Brachiaria brizantha under contrasting CO 2 atmospheric conditions in a free air carbon dioxide enrichment (FACE) facility. The forage plants were sown in each of the 12 octagonal rings of the FACE facility: six under ambient atmospheric CO 2 concentration of approximately 390 μmol/mol, here‐ after referred to as control (CON) plots, and other six rings enriched with pure CO 2 flux to achieve a target CO 2 concentration of 550 μmol/mol, hereafter called elevated CO 2 (eCO 2 ) plots. Soil samples were collected to determine carbon and nitrogen con‐ centrations. After seventy days of sowing, a standardization cutting was performed and then at regular intervals of 21 days the forage was harvested (ten harvest dates) and forwarded to laboratorial analyses. Forage above‐ground biomass production (dry matter (DM): 6,143 vs. 6,554 kg/ha), as well as morphological characteristics (leaves: 71% vs. 68%; stem: 28% vs. 31%), chemical composition (crude protein: 162.9 vs. 161.8; neutral detergent fibre: 663.8 vs. 664.3; acid detergent fibre: 369.5 vs. 381; lignin... Mostrar Tudo |
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Palavras-Chave: |
In vitro gas production. |
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Thesagro: |
Biomassa; Dióxido de Carbono; Grama; Mudança Climática. |
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Thesaurus NAL: |
Biomass production; Carbon dioxide; Carbon dioxide enrichment; Elevated atmospheric gases; Tropical grasslands. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 03009naa a2200349 a 4500
001 2115082
005 2019-11-25
008 2019 bl uuuu u00u1 u #d
022 $a1365-2494
024 7 $ahttps://doi.org/10.1111/gfs.12443$2DOI
100 1 $aABDALLA FILHO, A. L.
245 $aCO2 fertilization does not affect biomass production and nutritive value of a C-4 tropical grass in short timeframe.$h[electronic resource]
260 $c2019
520 $aAbstract: Increased atmospheric carbon dioxide (CO 2 ) is a consequence of recent anthropogenic environmental changes, and few studies have evaluated its effects on tropical grasses used in Brazilian pastures, the main feed source for major part of ruminant livestock. This study evaluated forage production, chemical composition, in vitro total gas pro‐ duction and organic matter degradability of Brachiaria brizantha under contrasting CO 2 atmospheric conditions in a free air carbon dioxide enrichment (FACE) facility. The forage plants were sown in each of the 12 octagonal rings of the FACE facility: six under ambient atmospheric CO 2 concentration of approximately 390 μmol/mol, here‐ after referred to as control (CON) plots, and other six rings enriched with pure CO 2 flux to achieve a target CO 2 concentration of 550 μmol/mol, hereafter called elevated CO 2 (eCO 2 ) plots. Soil samples were collected to determine carbon and nitrogen con‐ centrations. After seventy days of sowing, a standardization cutting was performed and then at regular intervals of 21 days the forage was harvested (ten harvest dates) and forwarded to laboratorial analyses. Forage above‐ground biomass production (dry matter (DM): 6,143 vs. 6,554 kg/ha), as well as morphological characteristics (leaves: 71% vs. 68%; stem: 28% vs. 31%), chemical composition (crude protein: 162.9 vs. 161.8; neutral detergent fibre: 663.8 vs. 664.3; acid detergent fibre: 369.5 vs. 381; lignin: 60.1 vs. 64.1 g/kg DM; total C: 45.9 vs. 45.9; total N: 2.8 vs. 2.8; total S: 0.2% vs. 0.2%), organic matter in vitro degradability (573.5 vs. 585.3 g/kg), methane (5.7 vs. 4.3 ml/g DM) and total gas (128.3 vs. 94.5 ml/g DM) production did not differ signifi‐ cantly between CON and eCO 2 treatments (p > .05). The results indicated that at least under short‐term enrichment, B. brizantha was not affected by eCO 2 .
650 $aBiomass production
650 $aCarbon dioxide
650 $aCarbon dioxide enrichment
650 $aElevated atmospheric gases
650 $aTropical grasslands
650 $aBiomassa
650 $aDióxido de Carbono
650 $aGrama
650 $aMudança Climática
653 $aIn vitro gas production
700 1 $aLIMA, P. de M. T.
700 1 $aSAKITA, G. Z.
700 1 $aSILVA, T. P. D. e
700 1 $aCOSTA. W. dos S. da
700 1 $aGHINI, R.
700 1 $aABDALLA, A. L.
700 1 $aPICCOLO, M. de C.
773 $tGrass and Forage Science$gv. 74, n. 4, p. 670-677, 2019.
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