Fig. 4.

Mutation of HY5 restores the hyperphotomorphogenic phenotypes of BBX21 overexpressors in the light. Hypocotyl phenotypes and lengths of 4-d-old Col, various mutants, and transgenic seedlings grown in darkness (A and B), white light (33.3 μmol/m²/s) (C and D), red light (59.5 μmol/m²/s) (E and F), blue light (6.37 μmol/m²/s) (G and H), and far-red light (1.46 μmol/m²/s) (I and J) conditions. Hypocotyl lengths are in millimeters. Data are means ± SE; n ≥20. Letters above the bars indicate significant differences (P < 0.05) as determined by one-way ANOVA with Tukey’s post hoc analysis. In A, C, E, G, and I, Col, various mutant and transgenic seedlings are separated by dotted lines. The experiments were performed three times, with similar results. The graphs depict one of these experiments.