Figure 5.

Expression of other tocopherol-related genes in control and stressed wild-type and 35S::HPT1 leaves. Experiments were performed as described in Figure 3. A, TAT; B, HPPD; C, HGAD; D, GGDR; E, GGPS1; F, TC; G, γ-TMT. TAT, HPPD, and HGAD mRNA levels increased, whereas GGDR mRNA levels decreased during stress. GGPS1, TC, and γ-TMT mRNA levels were not up-regulated in response to stress. * indicates all three stressed genotypes were statistically different (P < 0.05) from their corresponding unstressed controls at the indicated time points except for HGAD at d 3, where only wild type and 35S::HPT1-11 mRNA levels were statistically different from the corresponding controls.