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  Indian J Med Microbiol
 

Figure 2: Effects of H2O2 on activities of superoxide dismutase, catalase, peroxidase, and polyphenol oxidase. With 0.002 μmol/L, 0.2 μmol/L H2O2, and 20 μmol/L H2O2, superoxide dismutase, catalase and peroxidase activities suffered, particularly catalase, indicating under stress situation, anti-oxidative enzyme system fails to quench directly excessive reactive oxygen species in the plant cell. The activity of polyphenol oxidase was driven up slightly, showing flavones may be take important role in smoothing reactive oxygen species under heavy stress situation. The performance was repeated 3 times

Figure 2: Effects of H<sub>2</sub>O<sub>2</sub> on activities of superoxide dismutase, catalase, peroxidase, and polyphenol oxidase. With 0.002 μmol/L, 0.2 μmol/L H<sub>2</sub>O<sub>2</sub>, and 20 μmol/L H<sub>2</sub>O<sub>2</sub>, superoxide dismutase, catalase and peroxidase activities suffered, particularly catalase, indicating under stress situation, anti-oxidative enzyme system fails to quench directly excessive reactive oxygen species in the plant cell. The activity of polyphenol oxidase was driven up slightly, showing flavones may be take important role in smoothing reactive oxygen species under heavy stress situation. The performance was repeated 3 times