FIG. 7.

enh1 mutations cause hypersensitivity to oxidative stress. (A)Three-week-old seedlings grown in germination medium were treated with 0.5 or 1.0 μM methyl viologen under light for 4 days. Damaged seedlings exhibited a loss of chlorophyll content. (B) Quantification of chlorophyll levels of each genotype shown in (A). Error bars represent standard errors (n = 6). FW, fresh weight. (C) Tolerance of enh1 mutant plants to H₂O₂. Seeds were directly sown in media containing 0.5 mM H₂O₂. (D) Fresh weight of 30 seedlings per genotype shown in (C). Error bars represent standard error (n = 6).