Fig. 7From: Enhanced metabolic process to indole alkaloids in Clematis terniflora DC. after exposure to high level of UV-B irradiation followed by the darkEnzymatic activity of (a) L-serine deaminase and (b) L-tryptophan synthase in Clematis terniflora DC. leaves pre- and post-treatment with high level of UV-B irradiation for 5 h (UV-B 5 h), high level of UV-B irradiation 5 h followed by an incubation for 36 h in the dark (UV-B 5 h + Dark 36 h), light irradiation for 5 h (Light 5 h), light irradiation for 5 h followed by light irradiation for 36 h (Light 5 h + Light 36 h), or light irradiation for 5 h followed by an incubation in the dark for 36 h (Light 5 h + Dark 36 h). Data are shown as the mean ± SD from three independent biological replicates. Asterisks indicate significant changes measured by One-Way ANOVA test (**P < 0.01; ***P < 0.001)Back to article page