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| Registros recuperados : 194 | |
| 8. |  | CAÇÃO, S. M. B.; SILVA, N. V. e; PEREIRA, L. F.; VIEIRA, L. G. E.; PEREIRA, L. F. P. Identificação e caracterização de clones BAC de Coffea arabica L. HT 832/2 com marcas para resistência à ferrugem. In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 6., 2009, Vitória. Inovação científica, competitividade e mudanças climáticas: anais. Vitória: Consórcio Pesquisa Café, 2009.| Biblioteca(s): Embrapa Café. |
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| 9. | | SESSO, P. P.; PEREIRA, L. F. P.; SESSO FILHO, U. A.; ZAPPAROLI, I. D. Análise exploratória de dados espaciais da produção de café no estado do Paraná, 1980-2018. Cadernos de Ciência & Tecnologia, v. 37, n. 3, e26768, 2020. Título em inglês: Exploratory analysis of spatial data of the coffee production in Paraná state, 1980-2018.| Biblioteca(s): Embrapa Café; Embrapa Unidades Centrais. |
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| 12. | | TISKI, I.; PEREIRA, L. F. P.; POT, D.; MARRACCINI, P. R.; VIEIRA, L. G. E. Análise in silico e in vivo da via de isoprenóides em café. In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 5., 2007, Águas de Lindóia, SP. Anais... Brasília, DF: Embrapa Café, 2007.| Biblioteca(s): Embrapa Café. |
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| 13. | | TISKI, I.; PEREIRA, L. F. P.; POT, D.; MARRACCINI, P.; VIEIRA, L. G. E. Análise in silico e in vivo da via de isoprenóides em café. In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 5., 2007, Águas de Lindóia, SP. Anais... Brasília, DF: Embrapa Café, 2007. Biotecnologia aplicada à cadeia agroindustrial do café.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 14. | | YANAGUL, K.; VIEIRA, L. G.; POT, D.; PEREIRA, L. F. P. Avaliação da diversidade nucleotídica para identificação e análise de expressão de haplótipos em Coffea arabica (Nucleotide diversity evaluation for identification and expression analysis of Coffea arabica haplotypes). In: CONGRESO LATINOAMERICANO DE GENÉTICA, 14.; CONGRESO DE LA ASSOCIACIÓN LATINOAMERICANA DE MUTAGÊNESIS, CARCINOGÉNESES Y TERATOGÉNESIS AMBIENTAL, 8.; CONGRESO DE LA SOCIEDAD DE GENÉTICA DE CHILE,42.; CONGRESO DE LA SOCIEDAD ARGENTINA DE GENÉTICA, 39.; 2010, Vinã del Mar, Chile. p. 266| Biblioteca(s): Embrapa Café. |
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| 16. | | ANGELO, P. C. da S.; PEREIRA, L. F. P.; SERA, G. H.; SETA, T. Coffee microspore cultivation to attain doubled-haploid plantlets. Acta Horticulturae, v. 31, n. 1359, p. 123-130, 2023. Apresentado no INTERNATIONAL HORTICULTURAL CONGRESS, 31., 2022, Angers, França.| Biblioteca(s): Embrapa Café. |
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| Registros recuperados : 194 | |
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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: |
27/03/2023 |
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Data da última atualização: |
12/04/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 4 |
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Autoria: |
ANGELO, P. C. da S.; PEREIRA, L. F. P.; SERA, G. H.; SETA, T. |
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Afiliação: |
PAULA CRISTINA DA SILVA ANGELO, CNPCa; L. F. P. PEREIRA, IDR - PARANÁ; G. H. SERA, IDR - PARANÁ; T. SERA, IDR - PARANÁ. |
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Título: |
Coffee microspore cultivation to attain doubled-haploid plantlets. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Acta Horticulturae, v. 31, n. 1359, p. 123-130, 2023. |
|
DOI: |
10.17660/ActaHortic.2023.1359.14 |
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Idioma: |
Inglês |
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Notas: |
Apresentado no INTERNATIONAL HORTICULTURAL CONGRESS, 31., 2022, Angers, França. |
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Conteúdo: |
Introgression of disease resistance from related Coffea species to C. arabica has been done by inter-specific hybridization. C. arabica (tetraploid) × C. racemosa (diploid) hybrids were obtained at the IDR-Paraná, Brazil. Some of the hybrids display impaired self-pollination, despite backcrossed to C. arabica. As an attempt to regenerate stable doubled-haploid plants, anthers and isolated microspores have been cultivated in vitro. It was considered that chromosomes captured in a microspore following meiosis could acquire homo and/or homeologous stability faster in vitro than in vivo. A C. arabica progeny was taken as control. Flowers were collected at the IDR campus in Londrina, when young microspores were uninucleate, and treated with 8% active chlorine. Microspores were extracted in 90 mM mannitol using a food mixer set to function for a few seconds, washed and centrifuged at 100× g twice, and cultivated in modified N6 liquid medium (105 cells mL-1 in 35 mm diameter plates). Anthers were excised using scalpels and cultivated in solid medium. Explants were kept for six months of continuous cultivation on that induction medium containing 6.5 mg L-1 auxins, 1.0 mg L-1 cytokinins and 0.5 mg L-1 gibberellin (GA3), at 27°C under dark. Microspores produced embryo-like structures or microcalli in very low frequencies (0.3 per plate). Anthers, on the other hand, produced embryogenic calli. Colonization by an invariant morphotype of fungus took away 70% of Arabica coffee control anthers and 5% of the asseptic anthers produced friable calli, some embryogenic but arrested when compared with calli produced by the inter-specific hybrid anthers. Colonization by an invariant morphotype of bacteria took away 25% of hybrid anthers and 8% of produced embryogenic tissue, with globular embryos simultaneously multiplying and maturing upon transfer to N6 medium. Embryo conversion and photomorphogenesis under light on auxin/cytokinin ratio = 2 plus GA3 are going on, 1.2 year after inoculation. MenosIntrogression of disease resistance from related Coffea species to C. arabica has been done by inter-specific hybridization. C. arabica (tetraploid) × C. racemosa (diploid) hybrids were obtained at the IDR-Paraná, Brazil. Some of the hybrids display impaired self-pollination, despite backcrossed to C. arabica. As an attempt to regenerate stable doubled-haploid plants, anthers and isolated microspores have been cultivated in vitro. It was considered that chromosomes captured in a microspore following meiosis could acquire homo and/or homeologous stability faster in vitro than in vivo. A C. arabica progeny was taken as control. Flowers were collected at the IDR campus in Londrina, when young microspores were uninucleate, and treated with 8% active chlorine. Microspores were extracted in 90 mM mannitol using a food mixer set to function for a few seconds, washed and centrifuged at 100× g twice, and cultivated in modified N6 liquid medium (105 cells mL-1 in 35 mm diameter plates). Anthers were excised using scalpels and cultivated in solid medium. Explants were kept for six months of continuous cultivation on that induction medium containing 6.5 mg L-1 auxins, 1.0 mg L-1 cytokinins and 0.5 mg L-1 gibberellin (GA3), at 27°C under dark. Microspores produced embryo-like structures or microcalli in very low frequencies (0.3 per plate). Anthers, on the other hand, produced embryogenic calli. Colonization by an invariant morphotype of fungus took away 70% of Arabica coffee control ant... Mostrar Tudo |
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Thesagro: |
Embriogénese; Pólen; Rubiaceae. |
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Thesaurus NAL: |
Embryogenesis; Pollen. |
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Categoria do assunto: |
-- |
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Marc: |
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008 2023 bl uuuu u00u1 u #d
024 7 $a10.17660/ActaHortic.2023.1359.14$2DOI
100 1 $aANGELO, P. C. da S.
245 $aCoffee microspore cultivation to attain doubled-haploid plantlets.$h[electronic resource]
260 $c2023
500 $aApresentado no INTERNATIONAL HORTICULTURAL CONGRESS, 31., 2022, Angers, França.
520 $aIntrogression of disease resistance from related Coffea species to C. arabica has been done by inter-specific hybridization. C. arabica (tetraploid) × C. racemosa (diploid) hybrids were obtained at the IDR-Paraná, Brazil. Some of the hybrids display impaired self-pollination, despite backcrossed to C. arabica. As an attempt to regenerate stable doubled-haploid plants, anthers and isolated microspores have been cultivated in vitro. It was considered that chromosomes captured in a microspore following meiosis could acquire homo and/or homeologous stability faster in vitro than in vivo. A C. arabica progeny was taken as control. Flowers were collected at the IDR campus in Londrina, when young microspores were uninucleate, and treated with 8% active chlorine. Microspores were extracted in 90 mM mannitol using a food mixer set to function for a few seconds, washed and centrifuged at 100× g twice, and cultivated in modified N6 liquid medium (105 cells mL-1 in 35 mm diameter plates). Anthers were excised using scalpels and cultivated in solid medium. Explants were kept for six months of continuous cultivation on that induction medium containing 6.5 mg L-1 auxins, 1.0 mg L-1 cytokinins and 0.5 mg L-1 gibberellin (GA3), at 27°C under dark. Microspores produced embryo-like structures or microcalli in very low frequencies (0.3 per plate). Anthers, on the other hand, produced embryogenic calli. Colonization by an invariant morphotype of fungus took away 70% of Arabica coffee control anthers and 5% of the asseptic anthers produced friable calli, some embryogenic but arrested when compared with calli produced by the inter-specific hybrid anthers. Colonization by an invariant morphotype of bacteria took away 25% of hybrid anthers and 8% of produced embryogenic tissue, with globular embryos simultaneously multiplying and maturing upon transfer to N6 medium. Embryo conversion and photomorphogenesis under light on auxin/cytokinin ratio = 2 plus GA3 are going on, 1.2 year after inoculation.
650 $aEmbryogenesis
650 $aPollen
650 $aEmbriogénese
650 $aPólen
650 $aRubiaceae
700 1 $aPEREIRA, L. F. P.
700 1 $aSERA, G. H.
700 1 $aSETA, T.
773 $tActa Horticulturae$gv. 31, n. 1359, p. 123-130, 2023.
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