Fig. 4

The physiological and stress-responsive gene expression analysis under stress treatments. A The activities of SOD, POD, and CAT were measured in the WT and CaNAC46-overexpressing plants under normal and stress conditions. B The expression levels of stress-responsive genes were in examined by qRT-PCR analyses the WT and CaNAC46-overexpressing plants before and after the abiotic stress treatments. Three independent biological experiments were performed. Superscript letters indicate significant differences (P < 0.05)