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Registros recuperados : 13 | |
1. | | VELOSO, J. S.; ROSA, S. D. V. F. da; PADILHA, L.; SCHENK, J. C. M. Molecular evaluation of coffee seeds under cryopreservation. In: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 26., 2016, Kunming,Yunnan, China. Proceedings... ASIC - Association for Science and Information on Coffee, 2016. p. 129. Biblioteca(s): Embrapa Café. |
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4. | | MAIA, F. M.; STRAZZA, B. A.; SCHENK, J. C. M.; PADILHA, L.; GUERREIRO-FILHO, O.; MALUF, M. P. Expressão gênica em resposta a deficiência nutricional em folhas resistentes e suscetíveis ao bicho-mineiro. In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 9., 2015, Curitiba. Anais... Brasília, DF: Embrapa Café, 2015. Biblioteca(s): Embrapa Café. |
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5. | | GUIMARÃES, P. de S.; SCHENK, J. C. M.; GIACHETTO, P. F.; PADILHA, L.; SILVAROLLA, M. B.; MALUF, M. P. Validação de retrotransposons ativos em café-efeitos de estresse abiótico e baixa cafeína na expressão gênica. In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 10., 2019, Vitória. Pesquisa, Inovação e Sustentabilidade dos Cafés do Brasil. Anais... Brasília, DF: Embrapa Café, 2019. Título em inglês: Validation of active retrotransposons in coffee-effects of abiotic stress and low caffeine content on gene expression. Biblioteca(s): Embrapa Café. |
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6. | | GUIMARÃES, P. de S.; SCHENK, J. C. M.; GIACHETTO, P. F.; PADILHA, L.; SILVAROLLA, M. B.; MALUF, M. P. Validação de retrotransposons ativos em café-efeitos de estresse abiótico e baixa cafeína na expressão gênica. In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 10., 2019, Vitória, ES. Pesquisa, inovação e sustentabilidade dos cafés do Brasil. Brasília, DF: Embrapa Café, 2019. 4 p. Título em inglês: Validation of active retrotransposons in coffee-effects of abiotic stress and low caffeine content on gene expression. Biblioteca(s): Embrapa Agricultura Digital. |
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7. | | FATOBENE, B. J. dos R.; RENCI, P. F.; SCHENK, J. C. M.; MALUF, M. P.; GUERREIRO FILHO. O.; SILVAROLLA, M. B.; GONÇALVES, W. Análise de expressão gênica da interação entre cafeeiros silvestres de Coffea arabica E Meloidogyne paranaensis. In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 9., 2015, Curitiba. Anais... Brasília, DF: Embrapa Café, 2015. Biblioteca(s): Embrapa Café. |
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8. | | PADILHA, L.; SCHENK, J. C. M.; ORTEGA, H. M.; CARDOSO, D. C.; KAMIMURA, E. H.; ROSA, S. D. V. F.; MALUF, M. P. Expressão de genes relacionados ao estresse oxidativo em sementes de café armazenadas. In: CONGRESSO BRASILEIRO DE SEMENTES, 18., 2013, Florianópolis, SC. A semente na produtividade agrícola e na conservação de recursos genéticos. Londrina, PR: Associação Brasileira de Tecnologia de Sementes, 2013. Biblioteca(s): Embrapa Café. |
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9. | | SIMÕES, B. I. E.; SCHENK, J. C. M.; SILVA, K. A. da; GUIMARÃES, P. de S.; MALUF, M. P.; PADILHA, L. Diversidade genética de populações do bicho-mineiro em regiões cafeeiras do Brasil. In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 10., 2019, Vitória. Pesquisa, Inovação e Sustentabilidade dos Cafés do Brasil. Anais... Brasília, DF: Embrapa Café, 2019. Biblioteca(s): Embrapa Café. |
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10. | | BAZIOLI, J. M.; GUIMARÃES, P. de S.; STRAZZA, B. A.; SCHENK, J. C. M.; PADILHA, L.; GUERREIRO-FILHO, O.; MALUF, M. P. Desenvolvimento de marcadores associados à resistência do bicho-mineiro: seleção e validação de SNPs. In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 10., 2019, Vitória. Pesquisa, Inovação e Sustentabilidade dos Cafés do Brasil. Anais... Brasília, DF: Embrapa Café, 2019. Título em inglês: Development of molecular markers associated with leaf-miner resistance: selection and validation of SNPs. Biblioteca(s): Embrapa Café. |
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11. | | SCHENK, J. C. M.; PADILHA, L.; MALUF, M. P.; PIRES, D. A.; PEREIRA, L. A.; ROSA, S. D. V. F. da. Gene expression profiles in arabica coffee seeds submitted to different post-harvest processing, drying and storage. In: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 25., 2014, Armenia. Leveraging knowledge for coffee sustainability: proceedings. Armenia: Association for Science and Information on Coffee, 2014. p. 272. Biblioteca(s): Embrapa Café. |
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12. | | GUIMARÃES, P. S.; SCHENK, J. C. M.; CINTRA, L. C.; GIACHETTO, P. F.; SILVAROLLA, M. B.; PADILHA, L.; MALUF, M. P. Large-scale prospection of genes on caffeine-free Coffea arabica plants - discovery of novel markers associated with development and secondary metabolism. Plant Gene, v. 27, p. 1-9, Sept. 2021. Article 100314. Biblioteca(s): Embrapa Agricultura Digital; Embrapa Café. |
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13. | | PEREIRA, L. F. P.; SCHENK, J. C. M.; MALUF, M. P.; SANT'ANA, G. C.; NOGUEIRA, L.; PEREIRA, L. A.; SILVA, B. S. R. da; GUIMARÃES, P. de S.; GUERREIRO FILHO, O.; PADILHA, L. Marcadores SNP avaliados em cultivares de Café Arábica. In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 10., 2019, Vitória. Pesquisa, Inovação e Sustentabilidade dos Cafés do Brasil. Anais... Brasília, DF: Embrapa Café, 2019. Título em inglês: SNP markers assessed in Arabica coffee cultivars. Biblioteca(s): Embrapa Café. |
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Registros recuperados : 13 | |
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Registro Completo
Biblioteca(s): |
Embrapa Café. |
Data corrente: |
18/11/2020 |
Data da última atualização: |
18/11/2020 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
SCHENK, J. C. M.; PADILHA, L.; MALUF, M. P.; PIRES, D. A.; PEREIRA, L. A.; ROSA, S. D. V. F. da. |
Afiliação: |
JULIANA C. M. SCHENK, IAC; LILIAN PADILHA, CNPCa; MIRIAN PEREZ MALUF, CNPCa; DENISE. A. PIRES, IAC; LIGIA A. PEREIRA, IAC; STTELA DELLYZETE VEIGA F DA ROSA, CNPCa. |
Título: |
Gene expression profiles in arabica coffee seeds submitted to different post-harvest processing, drying and storage. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 25., 2014, Armenia. Leveraging knowledge for coffee sustainability: proceedings. Armenia: Association for Science and Information on Coffee, 2014. p. 272. |
Idioma: |
Português |
Conteúdo: |
The low seed longevity of arabica coffee has consequences as to use seeds soon after harvest, and the germplasm conservation has to be made ?in situ?. Several factors affect the quality of seeds, including post-harvest processing. In this study, we evaluated the influence of coffee seed processing and the drying methods on genes expression linked to the DNA transcription and protection of this molecule. We selected the AP2, a transcription factor usually involved in response to abiotic stress; the methylase DNA which acts turning off genes; and the telomerase gene that protects the DNA molecule and which is involved with ageing of cells. After harvesting, seeds were kept in the coffee fruits (natural seeds treatment) or seeds were processed by fermentation in water or by mechanical removing of mucilage. Seeds were dried in a mechanical dryer or in the shade until 35% and 12 % moisture content and, after that, they were stored during 12 months. The AP2 gene expression was down-regulated in the mechanical drying treatment for seeds with 35% and 12 % moisture content and stored for 12 month. On the other hand, AP2 were up-regulated in natural seeds treatment when they were dried in the shade and remained up-regulated from beginning to end storage. We could observe a marked down-regulation in the DNA methylase expression when seeds were dried in a mechanical dryer from 35 % to 12% moisture content. This was not observed for dried seeds in the shade. For natural seeds treatment dried in the shade until 12 % moisture content, there was a down-regulation in the telomerase gene expression. However, at this moisture content, the telomerase gene was expressed in the fermented seeds and in the seeds with mechanical removing of mucilage. This last behavior was observed for seeds mechanically dried. In our preliminary study, the expression profiles of the genes studied were more influenced by the drying process than to the types of seed processing and time of storage. MenosThe low seed longevity of arabica coffee has consequences as to use seeds soon after harvest, and the germplasm conservation has to be made ?in situ?. Several factors affect the quality of seeds, including post-harvest processing. In this study, we evaluated the influence of coffee seed processing and the drying methods on genes expression linked to the DNA transcription and protection of this molecule. We selected the AP2, a transcription factor usually involved in response to abiotic stress; the methylase DNA which acts turning off genes; and the telomerase gene that protects the DNA molecule and which is involved with ageing of cells. After harvesting, seeds were kept in the coffee fruits (natural seeds treatment) or seeds were processed by fermentation in water or by mechanical removing of mucilage. Seeds were dried in a mechanical dryer or in the shade until 35% and 12 % moisture content and, after that, they were stored during 12 months. The AP2 gene expression was down-regulated in the mechanical drying treatment for seeds with 35% and 12 % moisture content and stored for 12 month. On the other hand, AP2 were up-regulated in natural seeds treatment when they were dried in the shade and remained up-regulated from beginning to end storage. We could observe a marked down-regulation in the DNA methylase expression when seeds were dried in a mechanical dryer from 35 % to 12% moisture content. This was not observed for dried seeds in the shade. For natural seeds treatment d... Mostrar Tudo |
Thesagro: |
Armazenamento; Coffea Arábica; Gene; Pós-Colheita; Secagem; Semente. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/217970/1/PB238.pdf
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Marc: |
LEADER 02857nam a2200241 a 4500 001 2126792 005 2020-11-18 008 2014 bl uuuu u00u1 u #d 100 1 $aSCHENK, J. C. M. 245 $aGene expression profiles in arabica coffee seeds submitted to different post-harvest processing, drying and storage.$h[electronic resource] 260 $aIn: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 25., 2014, Armenia. Leveraging knowledge for coffee sustainability: proceedings. Armenia: Association for Science and Information on Coffee, 2014. p. 272.$c2014 520 $aThe low seed longevity of arabica coffee has consequences as to use seeds soon after harvest, and the germplasm conservation has to be made ?in situ?. Several factors affect the quality of seeds, including post-harvest processing. In this study, we evaluated the influence of coffee seed processing and the drying methods on genes expression linked to the DNA transcription and protection of this molecule. We selected the AP2, a transcription factor usually involved in response to abiotic stress; the methylase DNA which acts turning off genes; and the telomerase gene that protects the DNA molecule and which is involved with ageing of cells. After harvesting, seeds were kept in the coffee fruits (natural seeds treatment) or seeds were processed by fermentation in water or by mechanical removing of mucilage. Seeds were dried in a mechanical dryer or in the shade until 35% and 12 % moisture content and, after that, they were stored during 12 months. The AP2 gene expression was down-regulated in the mechanical drying treatment for seeds with 35% and 12 % moisture content and stored for 12 month. On the other hand, AP2 were up-regulated in natural seeds treatment when they were dried in the shade and remained up-regulated from beginning to end storage. We could observe a marked down-regulation in the DNA methylase expression when seeds were dried in a mechanical dryer from 35 % to 12% moisture content. This was not observed for dried seeds in the shade. For natural seeds treatment dried in the shade until 12 % moisture content, there was a down-regulation in the telomerase gene expression. However, at this moisture content, the telomerase gene was expressed in the fermented seeds and in the seeds with mechanical removing of mucilage. This last behavior was observed for seeds mechanically dried. In our preliminary study, the expression profiles of the genes studied were more influenced by the drying process than to the types of seed processing and time of storage. 650 $aArmazenamento 650 $aCoffea Arábica 650 $aGene 650 $aPós-Colheita 650 $aSecagem 650 $aSemente 700 1 $aPADILHA, L. 700 1 $aMALUF, M. P. 700 1 $aPIRES, D. A. 700 1 $aPEREIRA, L. A. 700 1 $aROSA, S. D. V. F. da
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