Fig. S7.

Sensitivity to ozone of glk1 glk2 plants. (A) Rosette plants of WT and glk1 glk2 double mutants (glk1glk2) 1 d after exposure to 0.3 ppm O₃ for 7 h. (B) Stomatal aperture of WT and glk1 glk2 plants grown on solid MS medium. Stomatal aperture of epidermal fragments from the plants under dark conditions, in which plants were incubated 1 d before measurements (dark), and light conditions (light). Approximately 150 stomata in total (n = 3 independent experiments, 50 stomata per experiment) were analyzed in each line. Error bars represent SD.