Fig. 2.

Relative transcription abundance of UGT76F1 in different light signal mutants. (A) The light-induced up-regulation of UGT76F1 was abolished in the mutants of phyA, phyB, or crys under white light treatment for 5 h after growing in continuous darkness for 5 d. (B and C) The effects of removing PIF1, PIF3, and PIF4 on transcript accumulation of UGT76F1 under continuous white light (B) or darkness (C). (D) UGT76F1 transcript accumulation was significantly suppressed by the overexpression of PIF3 and PIF4. Data shown are means ± SD. n = 3. Student’s t test for each genotype was performed (**P < 0.01).