Efeito da aplicação de metiljasmonato no desenvolvimento de calêndula (Calendula officinalis L. - Asteraceae) Methyl jasmonate in the development of Calendula (Calendula officinalis L. - Asteraceae)

Calendula officinalis (Asteraceae) is a medicinal plant used for its anti-inflammatory, antiseptic and healing effects. The metil jasmonate compound is formed from linolenic acid and interferes with the synthesis of secondary metabolites. The aim of this work was to verify whether the exogenous application of jasmonate on C. officinalis enhances the synthesis of secondary metabolites and is precursor to some external morphological adjustments in the evaluated species. The methodology used was thin-layer chromatography for characterization of phytochemical extracts. The morphological parameters evaluated were the length of the longest leaf and number of leaves. The exogenous application of methyl jasmonate at concentrations tested in C. officinalis did not alter the number of leaves and the length of the longest leaf. In the analysis of secondary metabolites, all treatments showed the same substances (rutin and chlorogenic acid).