METABOLISMO EM MUDAS DE DENDEZEIRO SUBMETIDAS AO ALUMÍNIO
DOI:
https://doi.org/10.14393/BJ-v39n0a2023-61615Palavras-chave:
Acid soils, Arecaceae, Biochemistry, Toxicity.Resumo
O presente trabalho teve como objetivo avaliar os efeitos da aplicação de dosagens de alumínio no metabolismo de Elaeis guineensis Jacq. O estudo foi conduzido em casa de vegetação no período de agosto de 2015 a janeiro de 2016. O delineamento experimental foi inteiramente casualizado, com 5 repetições, nas quais as dosagens de alumínio de 0, 10, 20, 30 e 40 mg L-1 de AlCl3 (AlCl3.6H2O). Observou-se que a maior concentração de alumínio foi encontrada nas raízes e os parâmetros bioquímicos analisados, verificou-se que a dosagem de 40 mg L-1 de AlCl3 aumentou o vazamento eletrolítico e maiores concentrações de NO3- e of NH4+ e prolina foram nas raízes, bem como maiores concentrações de aminoácidos nas folhas e raízes do dendê. Uma diminuição na atividade da enzima nitrato redutase foi observada nas raízes. O dendê apresentou mecanismos de tolerância à toxicidade do alumínio no período estudado e nas dosagens.
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Copyright (c) 2023 Ana Ecídia de Araújo Brito, Kerolém Prícila Sousa Cardoso, Thays Correa Costa, Jéssica Taynara da Silva Martins, Liliane Correa Machado, Glauco André dos Santos Nogueira, Susana Silva Conceição, Job Teixeira de Oliveira, Priscilla Andrade Silva, Raimundo Thiago Lima da Silva, Cândido Ferreira de Oliveira Neto
Este trabalho está licenciado sob uma licença Creative Commons Attribution 4.0 International License.