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| Registros recuperados : 21 | |
| 3. |  | SILVA, E. M. da; MAGALHAES, P. C.; CASTRO, E. M.; ÁVILA, R. G.; ALMEIDA, L. G. Modifications in the root system, gas exchanges and productivity of sorghum hybrids cultivated under water deficit. Revista Brasileira de Milho e Sorgo, Sete Lagoas, v. 17, n. 3, p. 380-389, 2018.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 7. | | AVILA, R. G.; MAGALHAES, P. C.; LAVINSKY, A. O.; ALVARENGA, A. A. de; GOMES JUNIOR, C. C.; CAMPOS, C. N. Alterações nos componentes de trocas gasosas e eficiência do fotossistema II em genótipos de milho submetidos a estresse hídrico no pré-florecimento. In: CONGRESSO NACIONAL DE MILHO E SORGO, 31., 2016, Bento Gonçalves. Milho e sorgo: inovações, mercados e segurança alimentar: anais. Sete Lagoas: Associação Brasileira de Milho e Sorgo, 2016.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 10. | | CAMPOS, C. N.; AVILA, R. G.; CAMPOS, N. N.; SILVA, E. M. da; MAGALHAES, P. C.; ALVARENGA, A. A. de. Silicon improves the productive performance of sorghum in different water conditions. In: BRAZILIAN CONGRESS OF PLANT PHYSIOLOGY, 17., 2019, Cuiabá. Challenges for plant physiology; Food production and sustanability: [abstracts]. Rio Claro, SP: Sociedade Brasileira de Fisiologia Vegetal, 2019. p. 246.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 11. | | AVILA, R. G.; MAGALHAES, P. C.; SILVA, E. M. da; SOUZA, K. R. D. de; CAMPOS, C. N.; ALVARENGA, A. A. de; SOUZA, T. C. de. Application of silicon to irrigated and water deficit sorghum plants increases yield via the regulation of primary, antioxidant, and osmoregulatory metabolism. Agricultural Water Management, v. 255, 107004, 2021.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 12. | | REIS, C. O. dos; MAGALHAES, P. C.; AVILA, R. G.; ALMEIDA, L. G.; RABELO, V. M.; CARVALHO, D. T.; CABRAL, D. F.; KARAM, D.; SOUZA, T. C. de. Action of N-succinyl and N,O-dicarboxymethyl chitosan derivatives on chlorophyll photosynthesis and fluorescence in drought-sensitive maize. Journal of Plant Growth Regulation, v. 38, p. 619-630, 2019.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 13. | | AVILA, R. G. A.; MAGALHAES, P. C.; ALVARENGA, A. A. de; LAVINSKY, A. de O.; CAMPOS, C. N.; SOUZA, T. C. de; GOMES JÚNIOR, C. C. Drought-tolerant maize genotypes invest in root system and maintain high harvest index during water stress Revista Brasileira de Milho e Sorgo, Sete Lagoas, v. 15, n. 3, p. 450-460, 2016.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 14. | | ÁVILA, R. G.; MAGALHAES, P. C.; VITORINO, L. C.; BESSA, L. A.; SOUZA, K. R. D. de; QUEIROZ, R. B.; JAKELAITIS, A.; TEIXEIRA, M. B. Chitosan induces sorghum tolerance to water deficits by positively regulating photosynthesis and the production of primary metabolites, osmoregulators, and antioxidants. Journal of Soil Science and Plant Nutrition, v. 23, p. 1156–1172, 2023.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 16. | | SIMEONE, M. L. F.; MAGALHAES, P. C.; CARNEIRO, N. P.; GOMES JÚNIOR, C. C.; AVILA, R. G.; SOUZA, T. C. de; OLIVEIRA, A. C. de. Ecophysiological characterization of sorghum genotypes submitted to water deficit tolerance. In: GOES, R. J. (org.). Cadeias produtivas e novas tecnologias: aspectos econômicos, ecológicos e sociais. Ponta Grossa: Atena, 2021. p. 69-83.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 17. | | ÁVILA, R. G.; MAGALHAES, P. C.; SILVA, E. M. da; ALVARENGA, A. A. de; REIS, C. O. dos; CUSTÓDIO. A. M.; JAKELAITIS, A.; SOUZA, T. C. de. Foliar application of potassium nitrate induces tolerance to water deficit in pre-flowering sorghum plants. Acta Scientiarum. Agronomy, v. 44, n. 1, e53069, 2022.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 18. | | 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. Silicon supplementation improves tolerance to water deficiency in sorghum plants by increasing root system growth and improving photosynthesis. Silicon, v. 12, p. 2545-2554, 2020. Publicado online em 12 dez. 2019.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 19. | | AVILA, R. G.; MAGALHAES, P. C.; SILVA, E. M. da; ALVARENGA, A. A. de; CAMPOS, C. N.; COSTA, E. L. G.; SILVA, F. G. Silicon supplementation induces tolerance to water deficit in sorghum plants, increasing the growth of the root system and improving the photosynthetic rate. In: BRAZILIAN CONGRESS OF PLANT PHYSIOLOGY, 17., 2019, Cuiabá. Challenges for plant physiology; Food production and sustanability: [abstracts]. Rio Claro, SP: Sociedade Brasileira de Fisiologia Vegetal, 2019. p. 247.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 20. | | GOMES JÚNIOR, C. C.; MARQUES, D. M.; MAGALHAES, P. C.; CARNEIRO, R. F. V.; SOUZA, F. A. de; SOUZA, T. C. de; AVILA, R. G.; VIANA, A. R. S. Alterações fisiológicas e ganho em matéria seca em genótipos de milho inoculados com fungos micorrízicos arbusculares em duas doses de fósforo no solo. In: CONGRESSO NACIONAL DE MILHO E SORGO, 32., 2018, Lavras. Soluções integradas para os sistemas de produção de milho e sorgo no Brasil: resumos. Sete Lagoas: Associação Brasileira de Milho e Sorgo, 2018. p. 89.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| Registros recuperados : 21 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
26/01/2023 |
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Data da última atualização: |
20/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ÁVILA, R. G.; MAGALHAES, P. C.; VITORINO, L. C.; BESSA, L. A.; SOUZA, K. R. D. de; QUEIROZ, R. B.; JAKELAITIS, A.; TEIXEIRA, M. B. |
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Afiliação: |
RONIEL GERALDO ÁVILA, Corporação Agro Simples; PAULO CESAR MAGALHAES, CNPMS; LUCIANA CRISTINA VITORINO, Instituto Federal Goiano; LAYARA ALEXANDRE BESSA, Instituto Federal Goiano; KAMILA REZENDE DÁZIO DE SOUZA, Universidade Federal de Alfenas; RAPHAEL BARROS QUEIROZ, Instituto Federal Goiano; ADRIANO JAKELAITIS, Instituto Federal Goiano; MARCONI BATISTA TEIXEIRA, Instituto Federal Goiano. |
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Título: |
Chitosan induces sorghum tolerance to water deficits by positively regulating photosynthesis and the production of primary metabolites, osmoregulators, and antioxidants. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Journal of Soil Science and Plant Nutrition, v. 23, p. 1156–1172, 2023. |
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DOI: |
https://doi.org/10.1007/s42729-022-01111-4 |
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Idioma: |
Inglês |
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Conteúdo: |
Current climate change scenarios require strategies that mitigate the efects of water defcits. Given that chitosan stimulates induced resistance responses, we tested the hypothesis that foliar application of this polysaccharide can have positive efects on the primary metabolite, antioxidant, and osmoregulatory metabolisms of sorghum, mitigating the efects of water defcit on grain yield. Sorghum plants were cultivated under either irrigated or water-defcit conditions and were either treated or untreated with chitosan, and we assessed the following responses: water potential, gas exchange, nutritional status, biosynthesis of primary and osmoregulatory metabolites, the activity of the antioxidant system constituents, and hydrogen peroxide and malondialdehyde contents. An active methodology was used to impose water stress on plants grown in pots with 20 kg of soil, 06 replications per treatment. Sorghum plants subjected to water defcit that were treated with chitosan exhibited higher stomatal conductance and transpiration than the untreated plants. Water restriction reduced the nutrient contents of leaves, but in the irrigated plants, chitosan treatment increased the tissue contents of certain nutrients and leaf concentrations of total proteins and total amino acids. In the plants under water-defcit conditions that were treated with chitosan, an elevated photosynthetic rate contributed to an increase in carbohydrate accumulation and a higher production of panicle and grain dry biomass compared with the untreated plants. The activity of catalase and ascorbate peroxidase also increased in response to chitosan. Overall, chitosan was efective in enhancing the water defcit tolerance of sorghum plants cultivated under water-defcit conditions by 57%. With this work, we generate perspectives for studies focusing on the development of water-defcit-resistant sorghum lineages, by means of chitosan elicitation. MenosCurrent climate change scenarios require strategies that mitigate the efects of water defcits. Given that chitosan stimulates induced resistance responses, we tested the hypothesis that foliar application of this polysaccharide can have positive efects on the primary metabolite, antioxidant, and osmoregulatory metabolisms of sorghum, mitigating the efects of water defcit on grain yield. Sorghum plants were cultivated under either irrigated or water-defcit conditions and were either treated or untreated with chitosan, and we assessed the following responses: water potential, gas exchange, nutritional status, biosynthesis of primary and osmoregulatory metabolites, the activity of the antioxidant system constituents, and hydrogen peroxide and malondialdehyde contents. An active methodology was used to impose water stress on plants grown in pots with 20 kg of soil, 06 replications per treatment. Sorghum plants subjected to water defcit that were treated with chitosan exhibited higher stomatal conductance and transpiration than the untreated plants. Water restriction reduced the nutrient contents of leaves, but in the irrigated plants, chitosan treatment increased the tissue contents of certain nutrients and leaf concentrations of total proteins and total amino acids. In the plants under water-defcit conditions that were treated with chitosan, an elevated photosynthetic rate contributed to an increase in carbohydrate accumulation and a higher production of panicle and grain dry b... Mostrar Tudo |
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Palavras-Chave: |
Desempenho fotossintético; Estresse hídrico; Osmorregulação; Quitosana. |
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Thesagro: |
Antioxidante; Enzima; Fotossíntese; Sorgo Granífero. |
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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/doc/1151232/1/Chitosan-induces-sorghum-tolerance.pdf
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Marc: |
LEADER 02955naa a2200313 a 4500
001 2151232
005 2024-02-20
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s42729-022-01111-4$2DOI
100 1 $aÁVILA, R. G.
245 $aChitosan induces sorghum tolerance to water deficits by positively regulating photosynthesis and the production of primary metabolites, osmoregulators, and antioxidants.$h[electronic resource]
260 $c2023
520 $aCurrent climate change scenarios require strategies that mitigate the efects of water defcits. Given that chitosan stimulates induced resistance responses, we tested the hypothesis that foliar application of this polysaccharide can have positive efects on the primary metabolite, antioxidant, and osmoregulatory metabolisms of sorghum, mitigating the efects of water defcit on grain yield. Sorghum plants were cultivated under either irrigated or water-defcit conditions and were either treated or untreated with chitosan, and we assessed the following responses: water potential, gas exchange, nutritional status, biosynthesis of primary and osmoregulatory metabolites, the activity of the antioxidant system constituents, and hydrogen peroxide and malondialdehyde contents. An active methodology was used to impose water stress on plants grown in pots with 20 kg of soil, 06 replications per treatment. Sorghum plants subjected to water defcit that were treated with chitosan exhibited higher stomatal conductance and transpiration than the untreated plants. Water restriction reduced the nutrient contents of leaves, but in the irrigated plants, chitosan treatment increased the tissue contents of certain nutrients and leaf concentrations of total proteins and total amino acids. In the plants under water-defcit conditions that were treated with chitosan, an elevated photosynthetic rate contributed to an increase in carbohydrate accumulation and a higher production of panicle and grain dry biomass compared with the untreated plants. The activity of catalase and ascorbate peroxidase also increased in response to chitosan. Overall, chitosan was efective in enhancing the water defcit tolerance of sorghum plants cultivated under water-defcit conditions by 57%. With this work, we generate perspectives for studies focusing on the development of water-defcit-resistant sorghum lineages, by means of chitosan elicitation.
650 $aAntioxidante
650 $aEnzima
650 $aFotossíntese
650 $aSorgo Granífero
653 $aDesempenho fotossintético
653 $aEstresse hídrico
653 $aOsmorregulação
653 $aQuitosana
700 1 $aMAGALHAES, P. C.
700 1 $aVITORINO, L. C.
700 1 $aBESSA, L. A.
700 1 $aSOUZA, K. R. D. de
700 1 $aQUEIROZ, R. B.
700 1 $aJAKELAITIS, A.
700 1 $aTEIXEIRA, M. B.
773 $tJournal of Soil Science and Plant Nutrition$gv. 23, p. 1156–1172, 2023.
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Embrapa Milho e Sorgo (CNPMS) |
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