Figure 2.
GA 3‐sensitivity test on hypocotyl growth in Col‐0 WT and sig2 mutant seedlings. Seedlings were grown on MS medium containing 1% sucrose and 0.7% Phytoblend agar with various concentrations of (a, b) gibberellic acid (GA 3) or (c) paclobutrazol (PAC) at 22°C for 7 days under constant Rc (50 μmol m−2 s−1). (a) Representative images of seedlings were shown. The scale bar indicated 0.5 cm. (b, c) Data points in graphs represent mean hypocotyl lengths of seedlings (±SD, n ≥ 25). Unpaired, two‐tailed Student's t test comparing sig2 mutants to Col‐0 WT for each (B) GA 3 or (C) PAC concentration, *p < .05, **p < .005, ***p < .0005, ****p < .00005