Figure 3.

Plants overexpressing NPX1 wilted more quickly under terminal drought stress. A, Photographs of plants after drought stress treatment that involves withholding water. Three-week-old plants of wild-type (WT), NPX1-ox, and npx1-1 plants were gown for a period of 14 d without added water. B, Stomatal conductance and soil moisture after 3 and 7 d without added water. Different letters indicate significant differences between means at P < 0.05 (Tukey's honestly significant difference; n = 20 plants). C, Table shows the soil moisture during drought stress treatment (n = 20 for each group). ^aThe values are presented as means ± se.