Fig. 2

The effects of IFQA on the maize- and Arabidopsis-root lengths under H₂O₂ and ATZ treatment. The phenotypes (a and c) and root lengths (b and d) of 5-d-old maize seedlings, which were cultured in water at two days after germination and then transferred into water, 50 mg/L IFQA, 1 mM H₂O_2, 1 mM H₂O₂ + 50 mg/L IFQA, 5 mM H₂O₂, 5 mM H₂O₂ + 50 mg/L IFQA, 1 mM ATZ, and 1 mM ATZ + 50 mg/L IFQA for 3 days; The phenotypes (e and g) and root lengths (f and h) of Arabidopsis plantlets, which were planted on MS, MS + 20 mg/L IFQA, MS + 0.3 mM H₂O₂ + 20 mg/L IFQA, MS + 0.3 mM H₂O₂, MS + 2 µM ATZ, and MS + 2 µM ATZ + 20 mg/L IFQA for eight days. Letters above the boxes indicate statistically significant differences between samples (P < 0.05)