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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
16/07/2025 |
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Data da última atualização: |
16/07/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVA, L. D. da; PENHA, N. C. da; SILVA, A. C. C. da; SILVEIRA, N. M.; MAGALHAES, P. C.; SANTOS, B. R.; SOUZA, T. C. de; MARQUES, D. M.; SANTOS, P. R. dos. |
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Afiliação: |
LUZIA D. DA SILVA, UNIVERSIDADE FEDERAL DE PERNAMBUCO; NAYARA CLARETE DA PENHA, UNIVERSIDADE FEDERAL DE ALFENAS; UNIVERSIDADE FEDERAL DE ALFENAS; NEIDIQUELE M. SILVEIRA, UNIVERSIDADE ESTADUAL PAULISTA; PAULO CESAR MAGALHAES, CNPMS; BEATRIZ ROSA SANTOS, UNIVERSIDADE FEDERAL DE ALFENAS; THIAGO CORREA DE SOUZA, UNIVERSIDADE FEDERAL DE ALFENAS; DANIELE MARIA MARQUES, UNIVERSIDADE FEDERAL DE ALFENAS; PATRICIO RINALDO DOS SANTOS, UNIVERSIDADE FEDERAL DE ALFENAS. |
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Título: |
Can the application of exogenous nitric oxide (S-nitrosoglutathione—GSNO) confer tolerance to water deficit in maize plants? |
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Ano de publicação: |
2025 |
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Fonte/Imprenta: |
Russian Journal of Plant Physiology, v. 72, n. 4, article 106, 2025. |
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DOI: |
https://doi.org/10.1134/S1021443724609522 |
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Idioma: |
Inglês |
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Conteúdo: |
Nitric oxide is a key signaling molecule that instigates several changes in plant metabolism by inducing tolerance to environmental stress. In this context, the objective of this study was to evaluate the application of exogenous nitric oxide (S-nitrosoglutathione—GSNO), on the biochemical and physiological characteristics of maize plants exposed to water deficit. The experiment was carried out in a greenhouse using a completely randomized design, with six treatments and five replications. Analyses were performed on plants at phenological stage V6 (six fully expanded leaves) of the sensitive hybrid BRS 1030 under irrigation, with water deficit and water deficit with the application of two S-nitrosoglutathione concentrations (50 and 100 μM). For comparative purposes, the tolerant maize hybrid DKB 390 was also subjected to these conditions, without the application of S-nitrosoglutathione. Biometrics, spad, gas exchange, sugars, glutathione and antioxidant enzymes were evaluated. Water deficit causes stomatal and biochemical limitations in maize plants. However, the application of 50 μM S-nitrosoglutathione restores the gas exchange of BRS 1030, probably inhibiting photosynthetic limitations. The same concentration increases the sugar levels in these plants (roots and shoots), contributing to the osmotic adjustment of maize under stress. It was also observed that the production of oxidized glutathione may have consumed the hydrogen peroxide resulting from stress, which may have decreased the activity of peroxidases, maintaining redox balance. A concentration of 50 μM S-nitrosoglutathione improves the physiology and biochemistry of maize plants, inducing tolerance of the sensitive hybrid (BRS 1030) to water deficit. MenosNitric oxide is a key signaling molecule that instigates several changes in plant metabolism by inducing tolerance to environmental stress. In this context, the objective of this study was to evaluate the application of exogenous nitric oxide (S-nitrosoglutathione—GSNO), on the biochemical and physiological characteristics of maize plants exposed to water deficit. The experiment was carried out in a greenhouse using a completely randomized design, with six treatments and five replications. Analyses were performed on plants at phenological stage V6 (six fully expanded leaves) of the sensitive hybrid BRS 1030 under irrigation, with water deficit and water deficit with the application of two S-nitrosoglutathione concentrations (50 and 100 μM). For comparative purposes, the tolerant maize hybrid DKB 390 was also subjected to these conditions, without the application of S-nitrosoglutathione. Biometrics, spad, gas exchange, sugars, glutathione and antioxidant enzymes were evaluated. Water deficit causes stomatal and biochemical limitations in maize plants. However, the application of 50 μM S-nitrosoglutathione restores the gas exchange of BRS 1030, probably inhibiting photosynthetic limitations. The same concentration increases the sugar levels in these plants (roots and shoots), contributing to the osmotic adjustment of maize under stress. It was also observed that the production of oxidized glutathione may have consumed the hydrogen peroxide resulting from stress, which may have... Mostrar Tudo |
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Palavras-Chave: |
Déficit hídrico; Equilíbrio osmótico; Glutationa; Limitação estomática; Osmotic balance; Stomatal limitation. |
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Thesagro: |
Milho; Resistência a Seca; Zea Mays. |
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Thesaurus Nal: |
Glutathione. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
null
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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| Registros recuperados : 7 | |
| 2. |  | BOMFIM, C. A.; SANTOS, K. C. B. dos; MENDES, L. S.; FONTENELLE, M. R.; REIS JUNIOR, F. B. dos; LIMA, C. E. P.; CARVALHO, A. D. F. de. Measurement and identification of filamentous fungi and yeast present in biofertilizer hortbio. In: CONGRESSO BRASILEIRO DE MICROBIOLOGIA, 28., 2015, Florianópolis. Resumos. Florianópolis: Sociedade Brasileira de Microbiologia, 2015.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Hortaliças. |
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| 3. | | PILON, L.; SANTOS, R. M. dos; Santos, K. C. B. dos; GINANI, V. C.; MACHADO, E. R.; RIQUETTE, R. F. R.; FONTENELLE, M. R. Evaluation of microbial contaminants in Hortbio® biofertilizer. In: CONGRESSO BRASILEIRO DE MICROBIOLOGIA, 28., 2015, Florianópolis. Resumos. Florianópolis: Sociedade Brasileira de Microbiologia, 2015.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Hortaliças. |
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| 4. | | RODRIGUES, S. C. V. A.; FONTENELLE, M. R.; BOMFIM, C. A.; SANTOS, K. C. B. dos; ZANDONADI, D. B.; LIMA, C. E. P. Respostas de cultivares de alface ao biofertilizante Hortbio. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 35., 2015, Natal. O solo e suas múltiplas funções: anais. Natal: Sociedade Brasileira de Ciência do Solo, 2015. Resumo.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Hortaliças. |
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| 5. | | LIMA, C. E. P.; SOARES, D. C.; RODRIGUES, S. C. V. A.; MENDES, L. S.; SANTOS, K. C. B. dos; FONTENELLE, M. R. Short term alterations in microbial attributes in a ferralsol cultivated with melon in different soil management systems in greenhouse. In: CONGRESSO BRASILEIRO DE MICROBIOLOGIA, 28., 2015, Florianópolis. Resumos. Florianópolis: Sociedade Brasileira de Microbiologia, 2015. Resumo 1720-2, on line.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Hortaliças. |
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| 6. | | FONTENELLE, M. R.; SANTOS, K. C. B. dos; BOMFIM, C. A.; MENDES, L. S.; VALE, H. M. M. do; LIMA, C. E. P.; REIS JUNIOR, F. B. dos; CARVAL, A. D. F. de. Bacterial characterization in biofertilizer Hortbio®. In: CONGRESSO BRASILEIRO DE MICROBIOLOGIA, 28., 2015, Florianópolis. Resumos. Florianópolis: Sociedade Brasileira de Microbiologia, 2015.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Cerrados. |
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| 7. | | FONTENELLE, M. R.; SANTOS, K. C. B.; BOMFIM, C. A.; MENDES, L. S.; VALE, H. M. M.; LIMA, C. E. P.; REIS JUNIOR, F. B. dos; CARVALHO, A. D. F. de. Bacterial characterization in biofertilizer Hortibio. In: CONGRESSO BRASILEIRO DE MICROBIOLOGIA, 28., 2015, Florianópolis. Resumos. Florianópolis: Sociedade Brasileira de Microbiologia, 2015. Resumo 716-2, on line.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Hortaliças. |
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| Registros recuperados : 7 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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