Figure 3. Expression of TERF1 enhances tobacco tolerance to H₂O₂ during seedling development.

(a) Seedlings cultured on MS medium (0.6% agar) with indicated concentration of H₂O₂ after germination. The average fresh weight per seedling (mg) was indicated at the corners of each plant set. (b) Survival rate of tobacco seedlings surveyed after culture on H₂O₂-containing MS medium for 14 days. Each value represents the average of at least 50 plants of three replicates. WT, wild type tobacco; OE-4/5, TERF1-expressing tobacco lines. Error bars indicate ±SD. Asterisks indicate significant differences from the data of wild type plants (P < 0.005, Student’s t test).