Fig. 6

Overexpression of IPA1 increases the ROS-scavenging ability and decreases oxidative damage that are associated with increased drought tolerance. A, B, C Phenotypes of IPA1 seedlings in PEG treatment. Scale bar is 5 cm. D Survival of IPA1 under soil drought treatment. E MDA levels, POD and CAT activity of the WT (MH86) and IPA1 overexpression during drought stress treatment. F Expression levels of ROS-related genes in WT (MH86) and IPA1-OE in response to drought stress. The relative expression levels of ROS-related genes were determined by qRT-PCR using gene-specific primer sets (Supplementary Table S1) and normalized to that of Actin150. Data are the means ± SD (*P < 0.05, **P < 0.01, Student’s t-test) of three technically independent experiments