Fig. 9

The effects of UV-B on major catechins and gene expression in UV-B experiment carried out in the controlled environment. a The concentration of major catechins in tea sample (bud with one developing leaf) from both the control and UV-B treatments in the controlled environment analysed by HPLC. b The expression of annotated unigenes in tea buds from both the Control and UV-B treatments in the controlled environment analysed by qRT-PCR. The full name of catechins and description of treatments in the controlled environment UV-B experiment are shown as above in Fig. 2. C1d, C3d, C7d and C14d indicate samples collected at 1d, 3d, 7d and 14d in the Control treatment. U1d, U3d, U7d and U14d indicate samples collected at 1d, 3d, 7d and 14d in the UV-B treatment. Data shown are the average mean ± SE of three replicates (n = 3). ns, no significance. *Significant differences comparing the Control treatment at each time point according to one-way ANOVA and a Fisher’s LSD test at the 5% level (*p < 0.05, **p < 0.01). Different letters indicate statistical significance among time points for the Control (a, b, c, d) and UV-B (e, f, g, h) treatments using one-way ANOVA and a Fisher’s LSD test at the 5% significance level