Effect of jasmonic acid on major terpenes and density of glandular trichomes in Lippia graveolens kunth (Verbenaceae)

Autor: Rafael E. Quintanar-Zúñiga, Josefina Vázquez-Medrano, Rosario Santos-Castro, Fernando García-García, Luis Barbo Hernández-Portilla, Amanda Moreno-Rodríguez, Cesar M. Flores-Ortiz
Rok vydání: 2019
Předmět:
Zdroj: Natural Product Research. 34:1942-1946
ISSN: 1478-6427
1478-6419
Popis: The effect of exogenous application of jasmonic acid (JA) on the concentration of main terpenes and density of glandular trichomes was investigated in the Mexican oregano, propagated from seeds from 3 localities. JA 1 mM was applied locally and to the whole plant. JA locally applied increased the number of trichomes, with a mean of 20 trichomes more with respect to the controls in plants from Tecomavaca and Zapotitlán Salinas, and significantly increased the thymol concentration by 185% systemically and 255% locally, compared to the control. JA applied to the whole plant decreased the number of trichomes and increased the concentration of caryophyllene from 0.79 to 1.7 mg g−1, and α-caryophyllene from 0.3 to 0.8 mg g−1 in plants from San Rafael with reference to water control. The results suggest a plasticity of morphologic and phytochemical responses, and a potential use of JA to improve phenolic monoterpenes and sesquiterpenes production.
Databáze: OpenAIRE