Figure 1.

The effects of Ca²⁺ chelator and channel inhibitors on strigolactone-induced stomatal closure. Leaf epidermal peels of WT plants with open stomata were exposed to either the MES-KCl buffer with (+) or without (–) 1 μM GR24, 2 mM EGTA, 1 mM LaCl₃, or 1 μM AlCl₃. The stomatal apertures were measured for different treatments. Data are means ± SE of three independent experiments Bars with different letters represent statistically significant differences.