Figure 3.

Mutants Carrying Lesions in TAG Catabolism Display Slower Light-Induced Stomatal Opening than Wild-Type

(A) sdp1-4 and 1-5 have delayed stomatal opening (p < 0.05 at 2 hr; p > 0.05 at 4 hr; n = 90), and LD breakdown is greatly reduced (p < 0.01; n = 54–62).

(B and C) Light-induced stomatal opening is disrupted in cgi58 (B; p < 0.001 at both time points; n = 90) and pxa1 (C; p < 0.001 at both time points; n = 90). LD breakdown is slightly increased in cgi58 (p < 0.05; n = 57–85), but not in pxa1 (p > 0.05; n = 70–97).

(D) DMP delays light-induced stomatal opening (p < 0.001 at 2 hr; p > 0.05 at 4 hr; n = 90).

(E) sdp1-4 and 1-5 have lower stomatal conductance immediately after a dark to light transition (p < 0.05; n = 8).

Error bars represent ±SE. See also Figures S2 and S4.