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| Registros recuperados : 131 | |
| 41. |  | RAIZER, M. D. M.; LOPES, M. T. G.; QUISEN, R. C.; LOPES, R.; RODRIGUES, F. A.; PASQUAL, M. Caracterização de Ploidia induzida em Heliconia chartacea var Sexy Pink. In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 6., 2020. Recursos genéticos e bioeconomia: inovação para um futuro sustentável: anais. Brasília, DF: Sociedade Brasileira de Recursos Genéticos, 2020. Trabalho 635.| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 42. | | AQUINO, L. A.; BERGER, P. G.; MIRANDA, L. M.; OGOSHI, F.; LÉLIS, M. M.; RODRIGUES, F. A.; ZAMBOLIM, L. Controle químico da mancha de Ramulária com uso da calda viçosa. In: CONGRESSO BRASILEIRO DO ALGODÃO, 6., 2007, Uberlândia. Anais... Uberlândia, 2007. p. 1-7 1 CD-ROM| Biblioteca(s): Embrapa Algodão. |
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| 43. | | AQUINO, L. A.; BERGER, P. G.; MIRANDA, L. M.; OGOSHI, F.; LÉLIS, M. M.; RODRIGUES, F. A.; ZAMBOLIM, L. Avaliação da aplicação foliar do Silicato de Potássio para controle da Mancha de Ramulária In: CONGRESSO BRASILEIRO DO ALGODÃO, 6., 2007, Uberlândia. Anais..... Uberlândia, 2007. p. 1-7 1 CD-ROM| Biblioteca(s): Embrapa Algodão. |
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| 44. | | SOARES, J. D. R.; RODRIGUES, F. A.; PASQUAL, M.; NAVES, V. L.; CHAGAS, E. A.; ASMAR, S. A. Análise histoquímica de sementes de camu-camu. In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 22., 2012, Bento Gonçalves. Anais... Bento Gonçalves: SBF, 2012.| Biblioteca(s): Embrapa Roraima. |
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| 45. | | SILVA, R. A. L.; SOARES, J. D. R.; RODRIGUES, F. A.; PASQUAL, M.; PEREIRA, F. J.; CHAGAS, E. A. Análise histoquímica em sementes de ingá (inga cinnamomea spruce ex benth). In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 22., 2012, Bento Gonçalves. Anais... Bento Gonçalves: SBF, 2012.| Biblioteca(s): Embrapa Roraima. |
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| 46. | | CRUZ, M. F. A. da; SILVA, L. de F.; RODRIGUES, F. A.; ARAÚJO, J. M. de; BARROS, E. G. de. Silício no processo infeccioso de Phakopsora pachyrhizi em folíolos de plantas de soja. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 47, n. 1, p. 142-145, jan. 2012. Título em inglês: Silicon on the infection process of Phakopsora pachyrhizi on soybean leaflets.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 49. | | NEPOMUCENO, A. L.; FUGANTI, R.; RODRIGUES, F. A.; NEUMAIER, N.; FARIAS, J. R. B.; KANAMORI, N.; MARCELINO, F. C. Estratégias moleculares para tolerância à seca em plantas. In: CONGRESSO BRASILEIRO DE FISIOLOGIA VEGETAL, 12., 2009, Fortaleza. Desafios para produção de alimentos e bioenergia: [anais...]. Fortaleza: UFC: Embrapa Agroindústria Tropical, 2009. Seção Palestra, 30.pdf. 1 CD-ROM. CBFV 2009.| Biblioteca(s): Embrapa Soja. |
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| 50. | | RESENDE, R. S.; SOARES, J. M.; RODRIGUES, F. A.; CASELA, C. R.; VALE, F. X. R.; MAFFIA, L. A. Efeito do silício em alguns componentes de resistência a antracnose em linhagens de sorgo. Fitopatologia Brasileira, Brasília, DF, v. 32, p. S138, ago. 2007. Suplemento. Edição dos Resumos do XL Congresso Brasileiro de Fitopatologia, Maringá, PR, ago. 2007.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 51. | | JULIATTI, F. C.; RODRIGUES, F. A.; KORNDORFER, G. H.; SILVA, O. A.; CORREA, G. F.; PEIXOTO, J. R. Efeito do silico na inducao de resistencia a Diaporthe phaseolorum f. sp. meridionalis em cultivares de soja em diferentes niveis de resistencia. In: REUNIAO DE PESQUISA DE SOJA DA REGIAO CENTRAL DO BRASIL, 18., 1996, Uberlandia. Ata e resumos. Uberlandia: UFU; [londrina]: Embrapa-CNPSo, 1996. p.300-301.| Biblioteca(s): Embrapa Cerrados. |
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| 52. | | XAVIER, D. S.; PRABHU, A. S.; SILVA-LOBO, V. L.; FILIPPI, M. C. C.; SILVA, F. R.; RODRIGUES, F. Á. Eficiência de casca de arroz carbonizada no controle da queima-da-bainha em arroz. Tropical Plant Pathology, v. 33, p. S 113, ago. 2008. Suplemento. ref. CAL-049. Edição dos Resumos do XLI Congresso Brasileiro de Fitopatologia, Belo Horizonte, MG, ago. 2008.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 53. | | AQUINO, L. A.; BERGER, P. G.; LÉLILS, M. M.; OGOSHI, F.; MIRANDA, L. M.; RODRIGUES, F. A.; ZAMBOLIM, L. Escala diagramática para avaliação da Mancha de Ramulária do algodoeiro. In: CONGRESSO BRASILEIRO DO ALGODÃO, 6., 2007, Uberlândia. Anais... Uberlândia, 2007. p. 1-7 1 CD-ROM| Biblioteca(s): Embrapa Algodão. |
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| 54. | | NEPOMUCENO, A. L.; FUGANTI, R.; PEREIRA, S. S.; RODRIGUES, F. A.; NEUMAIER, N.; FARIAS, J. R. B.; MARCELINO, F. C. Plantas geneticamente modificadas para tolerância a estresses abióticos. In: BORÉM, A.; ALMEIDA, G. D. de. Plantas geneticamente modificadas: desafios e oportunidades para regiões tropicais. Visconde de Rio Branco: Suprema, 2011. p. 119-138.| Biblioteca(s): Embrapa Soja. |
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| 56. | | CARRÉ-MISSIO, V.; RODRIGUES, F. A.; SCHURT, D. A.; MOREIRA, W. R.; REZENDE, D. C.; KORNDORFER, G. H.; ZAMBOLIM, L. Proteção local, não sistêmica, do silicato de potássio reduz os sintomas da ferrugem do cafeeiro. Tropical Plant Pathology, v. 37, n.4, p.275-280, 2012.| Biblioteca(s): Embrapa Roraima. |
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| 57. | | SCHURT, D. A.; RODRIGUES, F. A.; REIS, R. D.; MOREIRA, W. R.; SOUZA, N. F. A.; SILVA, W. A. Resistência física de bainhas de plantas de arroz supridas com silício e infectadas por Rhizoctonia solani. Tropical Plant Pathology, v. 37, n.4, p.281-285, 2012.| Biblioteca(s): Embrapa Roraima. |
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| 58. | | CRUZ, M. F. A. da; SOUZA, G. A. de; RODRIGUES, F. A.; SEDIYAMA, C. S.; BARROS, E. G. Reação de genótipos de soja à infecção natural por ferrugem asiática. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 46, n. 2, p. 215-218, fev. 2011 Tíutlo em inglês: Reaction of soybean cultivars to natural infection by Asian rust.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 60. | | FERREIRA, E. A.; CASTRO, F. H. da S.; PASQUAL, M.; PEREIRA, J. E. S.; RODRIGUES, F. A.; MATOS, A. M. Relação entre o tempo de enraizamento in vitro e o crescimento de plantas de bananeira na aclimatização. In: CONGRESSO BRASILEIRO DE FLORICULTURA E PLANTAS ORNAMENTAIS, 16.; CONGRESSO BRASILEIRO DE CULTURA DE TECIDOS DE PLANTAS, 3.; SIMPÓSIO DE PLANTAS ORNAMENTAIS NATIVAS, 1., 2007, Goiânia. Biodiversidade e competitividade: buscando novas opções: anais. Campinas: Sociedade Brasileira de Floricultura e Plantas Ornamentais, 2007. p. 1090-1093.| Biblioteca(s): Embrapa Acre. |
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| Registros recuperados : 131 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
17/10/2012 |
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Data da última atualização: |
13/06/2023 |
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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: |
DALLAGNOLA, L. J.; RODRIGUES, F. A.; CHAVES, A. R. de M.; VALE, F. X. R.; MATTA, F. M. da. |
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Afiliação: |
AGNALDO RODRIGUES DE MELO CHAVES, CPATSA. |
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Título: |
Photosynthesis and sugar concentration are impaired by the defective active silicon uptake in rice plants infected with Bipolaris oryzae. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Plant Pathology, v. 61, p. 1-10, 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
The effect of soluble silicon (Si) on photosynthetic parameters and soluble sugar concentrations was determined in leaves of rice cv. Oochikara and mutant plants of Oochikara defective in active Si uptake [low silicon 1 (lsi1)]. Plants were grown in hydroponic culture amended with 0 ()Si) or 2 mM Si (+Si), under either low or high photon flux density (PFD) and with or without inoculation with Bipolaris oryzae, the causal agent of brown spot of rice. Leaf Si concentration increased by 141 and 435% in +Si cv. Oochikara and by 119 and 251% in +Si lsi1 mutant plants under high and low PFD, respectively, com- pared with )Si plants. Plant biomass accumulation was improved by Si regardless of PFD, especially plants for cv. Oochikara. Brown spot severity was highest in )Si plants for cv. Oochikara and lsi1 mutant plants under low PFD. In the presence of Si, disease severity in plants grown under both low and high PFD was reduced, except for lsi1 mutant plants under high PFD. Plant inoculation reduced the photosynthetic parameters measured regardless of plant material or Si supply. A decrease of net carbon assimilation rate (A) of inoculated plants under low PFD compared with non-inoculated plants was associated with damage in the photosynthetic apparatus, except for +Si cv. Oochikara in which stomatal restriction [low water vapour conductance (gs)] contributed to A reduction. Under high PFD, damage to the photosynthetic apparatus of inoculated plants was the main reason for the reduction in A for +Si and )Si lsi1 mutant plants. In addition, for )Si cv. Oochikara, a reduction in gs contributed to reduced A. However, for +Si cv. Oochikara, gs was the limiting factor for A. Inoculated plants of +Si cv. Oochikara had higher A values than +Si lsi1 mutant plants, regardless of environmental conditions. Soluble sugars were not detected in leaf tissues of plants under low PFD. For high PFD, Si improved the hexose concentration in non-inoculated plants at 144 h after inoculation (hai) for lsi1 mutant plants and from 96 hai onwards for cv. Oochikara compared with Si plants. However, plant inoculation reduced hexose concentration compared with non-inoculated plants, mainly in +Si plants, regardless of plant material. Sucrose concentration increased in leaves of cv. Oochikara in the presence of Si whether inoculated or not. For +Si lsi1 mutant plants, sucrose concentration increased only at 48 hai compared with )Si plants, whether inoculated or not. The results of this study show that a minimum Si concentration is needed in leaf tissues of rice plants to avoid the negative impact of B. oryzae infection on photosynthesis and sugar concentration. High leaf Si con- centration resulted in an increased soluble sugar concentration and together, but in independent ways, soluble sugar and Si reduced brown spot severity of rice. MenosThe effect of soluble silicon (Si) on photosynthetic parameters and soluble sugar concentrations was determined in leaves of rice cv. Oochikara and mutant plants of Oochikara defective in active Si uptake [low silicon 1 (lsi1)]. Plants were grown in hydroponic culture amended with 0 ()Si) or 2 mM Si (+Si), under either low or high photon flux density (PFD) and with or without inoculation with Bipolaris oryzae, the causal agent of brown spot of rice. Leaf Si concentration increased by 141 and 435% in +Si cv. Oochikara and by 119 and 251% in +Si lsi1 mutant plants under high and low PFD, respectively, com- pared with )Si plants. Plant biomass accumulation was improved by Si regardless of PFD, especially plants for cv. Oochikara. Brown spot severity was highest in )Si plants for cv. Oochikara and lsi1 mutant plants under low PFD. In the presence of Si, disease severity in plants grown under both low and high PFD was reduced, except for lsi1 mutant plants under high PFD. Plant inoculation reduced the photosynthetic parameters measured regardless of plant material or Si supply. A decrease of net carbon assimilation rate (A) of inoculated plants under low PFD compared with non-inoculated plants was associated with damage in the photosynthetic apparatus, except for +Si cv. Oochikara in which stomatal restriction [low water vapour conductance (gs)] contributed to A reduction. Under high PFD, damage to the photosynthetic apparatus of inoculated plants was the main reason for the redu... Mostrar Tudo |
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Palavras-Chave: |
Açúcares solúveis; Densidade de fluxo de fótons; Doença foliar; Silício solúvel; Trocas gasosas. |
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Thesagro: |
Arroz; Cereal; Doença; Mancha Marrom; Oryza Sativa. |
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Thesaurus NAL: |
Bipolaris oryzae; Foliar diseases; Fungal brown spot; Gas exchange; Rice. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/68198/1/Agnaldo-1-2012.pdf
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Marc: |
LEADER 03865naa a2200349 a 4500
001 1936993
005 2023-06-13
008 2012 bl uuuu u00u1 u #d
100 1 $aDALLAGNOLA, L. J.
245 $aPhotosynthesis and sugar concentration are impaired by the defective active silicon uptake in rice plants infected with Bipolaris oryzae.$h[electronic resource]
260 $c2012
520 $aThe effect of soluble silicon (Si) on photosynthetic parameters and soluble sugar concentrations was determined in leaves of rice cv. Oochikara and mutant plants of Oochikara defective in active Si uptake [low silicon 1 (lsi1)]. Plants were grown in hydroponic culture amended with 0 ()Si) or 2 mM Si (+Si), under either low or high photon flux density (PFD) and with or without inoculation with Bipolaris oryzae, the causal agent of brown spot of rice. Leaf Si concentration increased by 141 and 435% in +Si cv. Oochikara and by 119 and 251% in +Si lsi1 mutant plants under high and low PFD, respectively, com- pared with )Si plants. Plant biomass accumulation was improved by Si regardless of PFD, especially plants for cv. Oochikara. Brown spot severity was highest in )Si plants for cv. Oochikara and lsi1 mutant plants under low PFD. In the presence of Si, disease severity in plants grown under both low and high PFD was reduced, except for lsi1 mutant plants under high PFD. Plant inoculation reduced the photosynthetic parameters measured regardless of plant material or Si supply. A decrease of net carbon assimilation rate (A) of inoculated plants under low PFD compared with non-inoculated plants was associated with damage in the photosynthetic apparatus, except for +Si cv. Oochikara in which stomatal restriction [low water vapour conductance (gs)] contributed to A reduction. Under high PFD, damage to the photosynthetic apparatus of inoculated plants was the main reason for the reduction in A for +Si and )Si lsi1 mutant plants. In addition, for )Si cv. Oochikara, a reduction in gs contributed to reduced A. However, for +Si cv. Oochikara, gs was the limiting factor for A. Inoculated plants of +Si cv. Oochikara had higher A values than +Si lsi1 mutant plants, regardless of environmental conditions. Soluble sugars were not detected in leaf tissues of plants under low PFD. For high PFD, Si improved the hexose concentration in non-inoculated plants at 144 h after inoculation (hai) for lsi1 mutant plants and from 96 hai onwards for cv. Oochikara compared with Si plants. However, plant inoculation reduced hexose concentration compared with non-inoculated plants, mainly in +Si plants, regardless of plant material. Sucrose concentration increased in leaves of cv. Oochikara in the presence of Si whether inoculated or not. For +Si lsi1 mutant plants, sucrose concentration increased only at 48 hai compared with )Si plants, whether inoculated or not. The results of this study show that a minimum Si concentration is needed in leaf tissues of rice plants to avoid the negative impact of B. oryzae infection on photosynthesis and sugar concentration. High leaf Si con- centration resulted in an increased soluble sugar concentration and together, but in independent ways, soluble sugar and Si reduced brown spot severity of rice.
650 $aBipolaris oryzae
650 $aFoliar diseases
650 $aFungal brown spot
650 $aGas exchange
650 $aRice
650 $aArroz
650 $aCereal
650 $aDoença
650 $aMancha Marrom
650 $aOryza Sativa
653 $aAçúcares solúveis
653 $aDensidade de fluxo de fótons
653 $aDoença foliar
653 $aSilício solúvel
653 $aTrocas gasosas
700 1 $aRODRIGUES, F. A.
700 1 $aCHAVES, A. R. de M.
700 1 $aVALE, F. X. R.
700 1 $aMATTA, F. M. da
773 $tPlant Pathology$gv. 61, p. 1-10, 2012.
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