Fig. 3

Physiological and biochemical analysis of wild-type and mutant plants. a- d TUNEL assay of DNA fragmentation in mesophyll cells. Bar = 100 μm. e-f H2O2 and MDA contents of leaves in spl36 and WT plants at the heading stage. g- h POD and SOD activities in the leaves spl36 and WT plants at the heading stage. POD: peroxidase; SOD: superoxide dismutase; MDA: malondialdehyde; WT: wild type