In this study, we investigated changes in withanolide accumulation and characterized the gene expression level changes of squalene synthase enzyme in P. peruviana shoot cultures exposed to mild nonlethal heat stress (45°C for 2 and 5 h) and UV-B radiation (313 nm for 15 min and 3 h). We demonstrated significant changes in withanolide content with and increases for 2- and 5-hmild high-temperature exposure times, respectively. Exposure to UV-B also changed the withanolide content by and 7-fold increases for 15 min and 3 h exposure times, respectively. |
