Fig. 7

The effects of IFQA on physiological indexes and expressions of genes affecting root-hair development. The root-hair phenotypes (a) after ADPH probe staining for H₂O₂ accumulation in Arabidopsis plantlets, which were planted on MS, MS + 20 mg/L IFQA, MS + 0.3 mM H₂O₂ + 20 mg/L IFQA, and MS + 0.3 mM H₂O₂ for 8 days; The activities of NADPH oxidase of maize (b); The transcriptional expressions of genes affecting ROS producing and root-hair development (c) of maize seedlings, which were cultured in water for two days after germination and then transferred into H₂O, 50 mg/L IFQA, 5 mM H₂O₂, and 5 mM H₂O₂ + 50 mg/L IFQA for three days, respectively