Action of silicon on the activity of antioxidant enzymes and on physiological mechanisms mitigates water deficit in sugarcane and energy cane plants

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorTeixeira, Gelza Carliane Marques-
Autor(es): dc.creatorde Prado, Renato Mello-
Autor(es): dc.creatorRocha, Antonio Márcio Souza-
Autor(es): dc.creatorde Oliveira Filho, Antonio Santana Batista-
Autor(es): dc.creatorda Sousa Junior, Gilmar Silveira-
Autor(es): dc.creatorGratão, Priscila Lupino-
Data de aceite: dc.date.accessioned2025-08-21T17:15:52Z-
Data de disponibilização: dc.date.available2025-08-21T17:15:52Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2022-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1038/s41598-022-21680-9-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/249284-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/249284-
Descrição: dc.descriptionProduction of sugarcane and more recently of energy cane strengthen renewable bioenergy production capacity. However, droughts resulting from climate change have limited the production of these crops. One of the strategies to attenuate water deficit damage in these crops is the use of silicate, which contributes to plant physiology. This strategy is likely to increase water use efficiency, thus promoting crop sustainability. Notwithstanding, studies on this issue are still incipient. This study assesses whether Si applied via fertigation and foliar spraying in the seedling production phase and as a complement after seedling transplanting to the soil is efficient in attenuating water deficit in sugarcane and energy cane. The study further elucidates physiological and biochemical mechanisms involved in this process. For this, the authors conducted two experiments: one with sugarcane and the other with energy cane. Treatments were arranged in randomized blocks with 5 replications, in a 2 × 2 factorial scheme. Factors consisted of the absence (-Si) and presence of Si (+ Si) applied via fertigation and foliar spraying; and two water regimes: 70% (without water deficit) and 30% (severe water deficit) of the soil water retention capacity. Silicon was supplied during the formation phase of presprouted seedlings and during the transplanting of seedlings to pots filled with samples of Entisol (Quartzipsamment). In these pots, water regimes were induced from 7 to 160 days after transplanting. Severe water deficit reduced the water content and water potential of plants. This situation induced oxidative stress and impaired gas exchange and photosynthetic water use efficiency, reducing plant growth. Silicon supply via fertigation in association with foliar spraying in the seedling formation phase with complementation after transplanting was efficient in increasing Si accumulation in the plants. Silicon was effective in attenuating severe water deficit damage up to initial culm formation through mechanisms that maintain water and physiological balance by favoring the antioxidant defense system in sugarcane and energy cane plants.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionLaboratory of Plant Nutrition Department of Soils and Fertilizers São Paulo State University (UNESP)-
Descrição: dc.descriptionLaboratory of Biogeochemistry Department of Technology São Paulo State University (UNESP)-
Descrição: dc.descriptionLaboratory of Plant Physiology Department of Biology Applied to Agriculture São Paulo State University (UNESP)-
Descrição: dc.descriptionLaboratory of Plant Nutrition Department of Soils and Fertilizers São Paulo State University (UNESP)-
Descrição: dc.descriptionLaboratory of Biogeochemistry Department of Technology São Paulo State University (UNESP)-
Descrição: dc.descriptionLaboratory of Plant Physiology Department of Biology Applied to Agriculture São Paulo State University (UNESP)-
Descrição: dc.descriptionCAPES: 001-
Idioma: dc.languageen-
Relação: dc.relationScientific Reports-
???dc.source???: dc.sourceScopus-
Título: dc.titleAction of silicon on the activity of antioxidant enzymes and on physiological mechanisms mitigates water deficit in sugarcane and energy cane plants-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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