Interactive effects of salicylic acid and jasmonic acid on secondary metabolite production in Echinacea purpurea

Authors : Fatemeh RASOLİ, Manoochehr GHOLİPOOR

Pages : 106-118

Doi:10.21448/ijsm.1079812

View : 12 | Download : 7

Publication Date : 2023-03-26

Article Type : Research Paper

Abstract :Secondary metabolites are highly beneficial to human health and have commercial and industrial values. So, this research aimed to study the effects of exogenous salicylic acid insert ignore into journalissuearticles values(SA); and jasmonic acid insert ignore into journalissuearticles values(JA); on some secondary metabolites in purple coneflower. A field experiment as a randomized complete block design with three replications was conducted in Shahrood, Iran. Treatments were the factorial arrangement of 3 SA insert ignore into journalissuearticles values(0, 0.5, and 1 millimole); and 4 JA concentrations insert ignore into journalissuearticles values(0, 5, 20, and 50 micromole);. The non-linear regression procedure was employed to quantify the relation of these materials with each other. The results indicated that the SA effect on all ten measured secondary metabolites changed with changing the JA levels as there was the interaction between these elicitors. On average, most insert ignore into journalissuearticles values(7 out of 11); of the combined SA_JA levels up-regulated the production of secondary metabolites as compared to the plants not sprayed with SA and JA. In terms of average response to elicitation with 11 combined SA_JA levels, they ranked from higher to lower as the guaiacol peroxidase, hydrogen proxide insert ignore into journalissuearticles values(H2O2);, polyphenol oxidase, glutathione S-transferase, superoxide dismutase, NADPH oxidase, total phenolic content, phenylalanine ammonia-lyase, anthocyanin, and flavonoid. A few secondary metabolites appeared to have a biphasic relationship with each other. For instance, over lower and medium values of NADPH oxidase activity, anthocyanin content increased linearly with increasing NADPH oxidase activity; over higher values of NADPH oxidase activity, it showed a plateau state.
Keywords : Antioxidants, Bioactive compounds, Purple coneflower, Regulatory hormones