Figure 4.

PIF4 and PIF5 contribute to UVB‐mediated hypocotyl elongation.

(a) Representative image showing the hypocotyl phenotype of 4‐day‐old wild‐type (Col), pif4‐101 pif5‐3 and uvr8‐6 seedlings grown under white light either supplemented with narrowband UV‐B (+) or not (−).

(b) Quantification of hypocotyl length. Data represent mean length ± SD for n > 40 samples. Shared letters indicate no statistically significant difference in the means (P > 0.05). Percentages on the x‐axis indicate the relative hypocotyl growth inhibition by UV‐B.