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| Registros recuperados : 12 | |
| 5. |  | 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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| 6. | | MARTINS, M.; VERONEZE JÚNIOR, V.; CARVALHO, M.; CARVALHO, D. T.; BARBOSA, S.; DORIGUETTO, A. C.; MAGALHAES, P. C.; RIBEIRO, C.; SANTOS, M. H. dos; SOUZA, T. C. de. Physicochemical characterization of chitosan and its effects on early growth, cell cycle and root anatomy of transgenic and non-transgenic maize hybrids. Australian Journal of Crop Science, v. 12, n. 1, p. 56-36, 2018.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 7. | | REIS, C. O. dos; MAGALHAES, P. C.; AMBROSIO, A. dos S.; ALMEIDA, L. G.; CARVALHO, D. T.; SOUZA, T. C, de. Do chitosan and its derivatives have the same protective effect on drought-contrasting maize genotypes? An analysis of physiological and production processes. Australian Journal of Crop Science, v. 16, n. 2, p. 208-215, 2022.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 8. | | VERONEZE JÚNIOR, V.; MARTINS, M.; MC LEOD, L.; SOUZA, K. R. D.; SANTOS FILHO, P. R.; MAGALHAES, P. C.; CARVALHO, D. T.; SANTOS, M. H.; SOUZA, T. C. Leaf application of chitosan and physiological evaluation of maize hybrids contrasting for drought tolerance under water restriction. Brazilian Journal of Biology, v. 80, n. 3 p. 631-640, 2020. Publicado online em 2019.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 9. | | SOUZA, T. C. de; AMBRÓSIO, A. dos S.; PORTUGAL, J. A. de N.; SOUZA, K. R. D. de; MAGALHAES, P. C.; SILVA, L. C da; DIAS, D. F.; SOUZA, T. B. de; CARVALHO, D. T. Maize chlorophyll-a fluorescence analysis under water deficit with application of trehalose derivates mixture. 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. 202.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 10. | | LUCENA, A. R. F. de; MENEZES, D. R.; CARVALHO, D. T. Q. de; MATOS, J. C.; ANTONELLI, A. C.; MORAES, S. A. de; DIAS, F. S.; QUEIROZ, M. A. A.; RODRIGUES, R. T. S. Effect of commercial tannin and a pornunca (Manihotspp.) silage-based diet on the fatty acid profile of Saanen goats milk. International Journal of Dairy Technology, v. 71, n. 3, p. 613-620, 2018.| Biblioteca(s): Embrapa Semiárido. |
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| 11. | | MENEZES, D. R.; SANTOS, J. M. dos; OLIVEIRA, C. R. N. de; MARCELINO, P. D. R.; PINHEIRO, A. P. da M.; CARVALHO, D. T. Q. de; NASCIMENTO, J. C. S.; GOIS, G. C.; VOLTOLINI, T. V.; QUEIROZ, M. A. A. Rainfall variability affects the chemical composition, gas production and degradability of cacti. Revista Colombiana de Ciencia Animal - RECIA, v. 14, n. 1, e895, 2022.| Biblioteca(s): Embrapa Semiárido. |
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| 12. | | RABELO, V. M.; MAGALHAES, P. C.; BRESSANIN, L. A.; CARVALHO, D. T.; REIS, C. O.; KARAM, D.; DORIGUETTO, A. C.; SANTOS, M. H. dos; SANTOS FILHO, P. R. dos; SOUZA, T. C. de. The foliar application of a mixture of semisynthetic chitosan derivatives induces tolerance to water deficit in maize, improving the antioxidant system and increasing photosynthesis and grain yield. Scientific Reports, v. 9, article n. 8164, 2019.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| Registros recuperados : 12 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
29/08/2019 |
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Data da última atualização: |
24/01/2020 |
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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: |
RABELO, V. M.; MAGALHAES, P. C.; BRESSANIN, L. A.; CARVALHO, D. T.; REIS, C. O.; KARAM, D.; DORIGUETTO, A. C.; SANTOS, M. H. dos; SANTOS FILHO, P. R. dos; SOUZA, T. C. de. |
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Afiliação: |
Valquíria Mikaela Rabêlo, Universidade Federal de Alfenas; PAULO CESAR MAGALHAES, CNPMS; Letícia Aparecida Bressanin, Universidade Federal de Alfenas; Diogo Teixeira Carvalho, Universidade Federal de Alfenas; Caroline Oliveira dos Reis, Universidade Federal de Alfenas; DECIO KARAM, CNPMS; Antônio Carlos Doriguetto, Universidade Federal de Alfenas; Marcelo Henrique dos Santos, Universidade Federal de Viçosa; Plínio Rodrigues dos Santos Filho, Universidade Federal de Alfenas; Thiago Corrêa de Souza, Universidade Federal de Alfenas. |
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Título: |
The foliar application of a mixture of semisynthetic chitosan derivatives induces tolerance to water deficit in maize, improving the antioxidant system and increasing photosynthesis and grain yield. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Scientific Reports, v. 9, article n. 8164, 2019. |
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DOI: |
10.1038/s41598-019-44649-7 |
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Idioma: |
Inglês |
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Conteúdo: |
Research has shown that chitosan induces plant stress tolerance and protection, but few studies have explored chemical modifications of chitosan and their effects on plants under water stress. Chitosan and its derivatives were applied (isolated or in mixture) to maize hybrids sensitive to water deficit under greenhouse conditions through foliar spraying at the pre-flowering stage. After the application, water deficit was induced for 15 days. Analyses of leaves and biochemical gas exchange in the ear leaf were performed on the first and fifteenth days of the stress period. Production attributes were also analysed at the end of the experiment. In general, the application of the two chitosan derivatives or their mixture potentiated the activities of the antioxidant enzymes superoxide dismutase, catalase, ascorbate peroxidase, glutathione reductase and guaiacol peroxidase at the beginning of the stress period, in addition to reducing lipid peroxidation (malonaldehyde content) and increasing gas exchange and proline contents at the end of the stress period. The derivatives also increased the content of phenolic compounds and the activity of enzymes involved in their production (phenylalanine ammonia lyase and tyrosine ammonia lyase). Dehydroascorbate reductase and compounds such as total soluble sugars, total amino acids, starch, grain yield and harvest index increased for both the derivatives and chitosan. However, the mixture of derivatives was the treatment that led to the higher increase in grain yield and harvest index compared to the other treatments. The application of semisynthetic molecules derived from chitosan yielded greater leaf gas exchange and a higher incidence of the biochemical conditions that relieve plant stress. MenosResearch has shown that chitosan induces plant stress tolerance and protection, but few studies have explored chemical modifications of chitosan and their effects on plants under water stress. Chitosan and its derivatives were applied (isolated or in mixture) to maize hybrids sensitive to water deficit under greenhouse conditions through foliar spraying at the pre-flowering stage. After the application, water deficit was induced for 15 days. Analyses of leaves and biochemical gas exchange in the ear leaf were performed on the first and fifteenth days of the stress period. Production attributes were also analysed at the end of the experiment. In general, the application of the two chitosan derivatives or their mixture potentiated the activities of the antioxidant enzymes superoxide dismutase, catalase, ascorbate peroxidase, glutathione reductase and guaiacol peroxidase at the beginning of the stress period, in addition to reducing lipid peroxidation (malonaldehyde content) and increasing gas exchange and proline contents at the end of the stress period. The derivatives also increased the content of phenolic compounds and the activity of enzymes involved in their production (phenylalanine ammonia lyase and tyrosine ammonia lyase). Dehydroascorbate reductase and compounds such as total soluble sugars, total amino acids, starch, grain yield and harvest index increased for both the derivatives and chitosan. However, the mixture of derivatives was the treatment that led to the hig... Mostrar Tudo |
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Palavras-Chave: |
Déficit hídrico; Quitosana. |
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Thesagro: |
Milho. |
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Categoria do assunto: |
S Ciências Biológicas |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/201385/1/Foliar-application.pdf
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Marc: |
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024 7 $a10.1038/s41598-019-44649-7$2DOI
100 1 $aRABELO, V. M.
245 $aThe foliar application of a mixture of semisynthetic chitosan derivatives induces tolerance to water deficit in maize, improving the antioxidant system and increasing photosynthesis and grain yield.$h[electronic resource]
260 $c2019
520 $aResearch has shown that chitosan induces plant stress tolerance and protection, but few studies have explored chemical modifications of chitosan and their effects on plants under water stress. Chitosan and its derivatives were applied (isolated or in mixture) to maize hybrids sensitive to water deficit under greenhouse conditions through foliar spraying at the pre-flowering stage. After the application, water deficit was induced for 15 days. Analyses of leaves and biochemical gas exchange in the ear leaf were performed on the first and fifteenth days of the stress period. Production attributes were also analysed at the end of the experiment. In general, the application of the two chitosan derivatives or their mixture potentiated the activities of the antioxidant enzymes superoxide dismutase, catalase, ascorbate peroxidase, glutathione reductase and guaiacol peroxidase at the beginning of the stress period, in addition to reducing lipid peroxidation (malonaldehyde content) and increasing gas exchange and proline contents at the end of the stress period. The derivatives also increased the content of phenolic compounds and the activity of enzymes involved in their production (phenylalanine ammonia lyase and tyrosine ammonia lyase). Dehydroascorbate reductase and compounds such as total soluble sugars, total amino acids, starch, grain yield and harvest index increased for both the derivatives and chitosan. However, the mixture of derivatives was the treatment that led to the higher increase in grain yield and harvest index compared to the other treatments. The application of semisynthetic molecules derived from chitosan yielded greater leaf gas exchange and a higher incidence of the biochemical conditions that relieve plant stress.
650 $aMilho
653 $aDéficit hídrico
653 $aQuitosana
700 1 $aMAGALHAES, P. C.
700 1 $aBRESSANIN, L. A.
700 1 $aCARVALHO, D. T.
700 1 $aREIS, C. O.
700 1 $aKARAM, D.
700 1 $aDORIGUETTO, A. C.
700 1 $aSANTOS, M. H. dos
700 1 $aSANTOS FILHO, P. R. dos
700 1 $aSOUZA, T. C. de
773 $tScientific Reports$gv. 9, article n. 8164, 2019.
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