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Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
18/12/2019 |
Data da última atualização: |
13/11/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
AVILA, R. G.; MAGALHAES, P. C.; SILVA, E. M. da; GOMES JÚNIOR, C. C.; LANA, U. G. de P.; ALVARENGA, A. A. de; SOUZA, T. C. de. |
Afiliação: |
Roniel Geraldo Avila, Universidade Federal de Lavras; PAULO CESAR MAGALHAES, CNPMS; Eder Marcos da Silva, Universidade Federal de Lavras; Carlos César Gomes Júnior, Universidade Federal de Alfenas; UBIRACI GOMES DE PAULA LANA, CNPMS; Amauri Alves de Alvarenga, Universidade Federal de Lavras; Thiago Corrêa de Souza, Universidade Federal de Alfenas. |
Título: |
Silicon supplementation improves tolerance to water deficiency in sorghum plants by increasing root system growth and improving photosynthesis. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Silicon, v. 12, p. 2545-2554, 2020. |
DOI: |
10.1007/s12633-019-00349-5 |
Idioma: |
Inglês |
Notas: |
Publicado online em 12 dez. 2019. |
Conteúdo: |
This study was conducted to assess the effects of silicon treatments on architecture and morphometry of root systems of sorghum plants grown at two different soil water levels and to elucidate whether physiological improvements caused by silicon were related to morphometric modifications of the root system. Methods Plants of the sorghum genotype BRS332 which is sensitive to drought at pre-flowering stage were used in this study. Theseplantsweregrowninagreenhouse,eitheratfieldcapacityorunderwaterdeficiency,andweretreatedwithsiliconorwere untreated. Leaf water potential was evaluated at noon, and gas exchange, photosynthetic pigment levels, relative aquaporin expression, root system morphometry, and grain yield were assessed. Results Silicontreatmentsmitigatedtheeffectsofwaterdeficiencyonleafpotential,photosynthesis,instantaneouscarboxylation efficiency, and morphometry of the root system. These positive effects contributed to a higher grain yield, and thus indicated highertolerancetodrought.Thebeneficialeffectsofsiliconalsooccurredinplantsgrownatfieldcapacity.Silicontreatmentsdid not increase the relative expression of aquaporin genes. However, we observed that expression of aquaporin TIP4 responded more strongly to drought than that of aquaporins PIP1;6 and PIP1;3/1;4. Conclusion Weconcludethatsiliconsupplementationincreasesthetoleranceofsorghumplantstodroughtbyincreasinggrowth of the root system and mitigating adverse effects of drought on photosynthesis. |
Thesagro: |
Deficiência Hídrica; Fotossíntese; Sistema Radicular; Sorgo. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/217805/1/Silicon-supplementation.pdf
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Marc: |
LEADER 02330naa a2200265 a 4500 001 2117154 005 2020-11-13 008 2020 bl uuuu u00u1 u #d 024 7 $a10.1007/s12633-019-00349-5$2DOI 100 1 $aAVILA, R. G. 245 $aSilicon supplementation improves tolerance to water deficiency in sorghum plants by increasing root system growth and improving photosynthesis.$h[electronic resource] 260 $c2020 500 $aPublicado online em 12 dez. 2019. 520 $aThis study was conducted to assess the effects of silicon treatments on architecture and morphometry of root systems of sorghum plants grown at two different soil water levels and to elucidate whether physiological improvements caused by silicon were related to morphometric modifications of the root system. Methods Plants of the sorghum genotype BRS332 which is sensitive to drought at pre-flowering stage were used in this study. Theseplantsweregrowninagreenhouse,eitheratfieldcapacityorunderwaterdeficiency,andweretreatedwithsiliconorwere untreated. Leaf water potential was evaluated at noon, and gas exchange, photosynthetic pigment levels, relative aquaporin expression, root system morphometry, and grain yield were assessed. Results Silicontreatmentsmitigatedtheeffectsofwaterdeficiencyonleafpotential,photosynthesis,instantaneouscarboxylation efficiency, and morphometry of the root system. These positive effects contributed to a higher grain yield, and thus indicated highertolerancetodrought.Thebeneficialeffectsofsiliconalsooccurredinplantsgrownatfieldcapacity.Silicontreatmentsdid not increase the relative expression of aquaporin genes. However, we observed that expression of aquaporin TIP4 responded more strongly to drought than that of aquaporins PIP1;6 and PIP1;3/1;4. Conclusion Weconcludethatsiliconsupplementationincreasesthetoleranceofsorghumplantstodroughtbyincreasinggrowth of the root system and mitigating adverse effects of drought on photosynthesis. 650 $aDeficiência Hídrica 650 $aFotossíntese 650 $aSistema Radicular 650 $aSorgo 700 1 $aMAGALHAES, P. C. 700 1 $aSILVA, E. M. da 700 1 $aGOMES JÚNIOR, C. C. 700 1 $aLANA, U. G. de P. 700 1 $aALVARENGA, A. A. de 700 1 $aSOUZA, T. C. de 773 $tSilicon$gv. 12, p. 2545-2554, 2020.
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Embrapa Milho e Sorgo (CNPMS) |
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Registro Completo
Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
Data corrente: |
20/08/2013 |
Data da última atualização: |
08/03/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
CIDADE, F. W.; VIGNA, B. B. Z.; SOUZA, F. H. D. de; VALLS, J. F. M.; DALL´AGNOL, M.; ZUCCHI, M.; SOUZA-CHIES, T. T. de; SOUZA, A. P. |
Afiliação: |
BIANCA BACCILI ZANOTTO VIGNA, CPPSE; FRANCISCO HUMBERTO DUBBERN DE SOUZA, CPPSE; JOSE FRANCISCO MONTENEGRO VALLS, CENARGEN; UNICAMP-CAMPINAS; UNICAMP-CAMPINAS. |
Título: |
Genetic variation in polyploid forage grass: assessing the molecular genetic variability in the Paspalum genus. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
BMC Genetics, v. 14, 2013. |
Idioma: |
Inglês |
Palavras-Chave: |
Cross-species; Genetic diversity; Germaplasm evaluation. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/179865/1/1471-2156-14-50.pdf
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Marc: |
LEADER 00694naa a2200229 a 4500 001 1964359 005 2023-03-08 008 2013 bl uuuu u00u1 u #d 100 1 $aCIDADE, F. W. 245 $aGenetic variation in polyploid forage grass$bassessing the molecular genetic variability in the Paspalum genus.$h[electronic resource] 260 $c2013 653 $aCross-species 653 $aGenetic diversity 653 $aGermaplasm evaluation 700 1 $aVIGNA, B. B. Z. 700 1 $aSOUZA, F. H. D. de 700 1 $aVALLS, J. F. M. 700 1 $aDALL´AGNOL, M. 700 1 $aZUCCHI, M. 700 1 $aSOUZA-CHIES, T. T. de 700 1 $aSOUZA, A. P. 773 $tBMC Genetics$gv. 14, 2013.
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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