Navegando por Autor "Paula, Maria Eduarda Magalhães de"

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Efeitos da elicitação isolada e combinada de ácido salicílico e metil jasmonato nos parâmetros biométricos e bioquímicos em Lippia alba (Verbenaceae)
(2024-09-27) Paula, Maria Eduarda Magalhães de; Sperandio, Marcus Vinícius Loss; http://lattes.cnpq.br/4157291425794314; http://lattes.cnpq.br/8710784594902570
Lippia alba is an aromatic shrub from the Verbenaceae family, primarily associated with Brazil's Caatinga and Cerrado regions. It is used in traditional medicine for its pharmacological properties, those being attributed to the essential oil the plant produces as a defense mechanism. A tool that can be used to increase the productivity of bioactive compounds in both in vitro and in vivo development is elicitation. This study aims to analyze the effects of isolated and combined applications of the elicitors Methyl Jasmonate and Salicylic Acid on L. alba, using biochemical and biometric data as parameters one week after the elicitation. Cuttings of L. alba were maintained in hydroponic cultivation and later transferred to a greenhouse. The combined and isolated treatments received a concentration of 4 mM Salicylic Acid and 2 mM Methyl Jasmonate. An additional group was established, receiving an application of 1% ethanol. The experiment was harvested one week after the elicitation. Elicited treatments showed significant differences in essential oil yield, oxidative stress analysis, and enzymatic activity compared to the control. Growth parameters, along with carbohydrate and protein levels, kept similar patterns in all treatments. In vivo, combined Salicylic Acid and Methyl Jasmonate elicitation increased essential oil yield on L. alba without affecting biomass production, suggesting an efficient modulation of the plant metabolism. Therefore, elicitation at the tested concentrations demonstrated to be a viable tool to optimize the production of bioactive compounds in this species in a short elicitation period.