Figure 6
The accumulation of H 2 O 2 in tobacco leaves after treatment with H 2 O, 80 mm KCl and 40 mm K 2 C 2 O 4 under high light (800 μmol m-2 s-1) for 2 hours. Histochemical detection of H2O2 production with 1 mg/ml 3, 3-diaminobenzidine (DAB, pH 5.5) staining. CK were leaves without K2C2O4 and KCl treatment. Representative images from five independent experiments are shown in the figure.