UV-B Perceived by UVR8 Inhibits High-Temperature-Induced Architectural Adaptations in Arabidopsis
(A) Hypocotyl lengths of Ler and uvr8-1 seedlings grown in continuous light for 3 days at 20°C, before transfer to 20°C, 28°C, 20°C + UV-B, or 28°C + UV-B for a further 4 days. Data represent mean length (n = 40) ± SE.
(B) Petiole length of leaf 4 of Ler and uvr8-1 plants grown for 10 days in 16 hr light/8 hr dark cycles at 20°C before transfer to 20°C, 28°C, 20°C + UV-B, or 28°C + UV-B for a further 9 days. Data represent mean length (n ≥ 23) ± SE. Different letters indicate statistically significant means (p < 0.05). Two-way ANOVA confirmed that there was a significant interaction between genotype and condition on petiole length (p < 0.001).
(C) Representative rosettes of plants grown as in (B).
See also Figure S1.