Fig. 6

Statistics of area of shikimate, anthranilate, indole, and L-tryptophan HPLC-TOF-MS/MS peaks in Clematis terniflora DC. leaves pre- and post-treatment with high level of UV-B irradiation for 5 h with or without an incubation for 36 h in the dark. Data are shown as the mean ± SD from three independent biological replicates. Asterisks indicate significant changes measured by One-Way ANOVA test (*P < 0.05; **P < 0.01; ***P < 0.001)