Fig. 6

Accumulation of H₂O₂ in the osmdhar4 mutant and OsMDHAR4-overexpressing plants. a Detection of the H₂O₂ content of WT and the OsMDHAR4 mutant under normal and heat stress conditions. b DAB staining in the seedling leaves of WT and the osmdhar4 mutant under normal and heat stress conditions. c Detection of the H₂O₂ content of WT and OsMDHAR4-OE-1 plants under normal and heat stress conditions. d DAB staining in the seedling leaves of WT and OsMDHAR4-OE-1 plants under normal and heat stress conditions. Error bars indicate the SE based on three biological replicates. *, P < 0.05, and **, P < 0.01, by Student’s t-test. FW, Fresh Weight