Effect of microwave on the dynamics of some oxidoreductase enzymes in Brassica napus germination seeds

This paper presents the effect of microwaves on the catalase and peroxidase activity in rape germinating seeds. Two experimental lots were projected: one in which the non germinated seeds were exposed 1 hour, respectively, 5 hours, to microwave rays, and the second in which the germinated seeds (after 24 hours) were exposed to microwave action for the some interval. We used a microwave generator with a horn antenna, at the 10.75 GHz and a power density under 1 mWcm-1. For a period of 8 days, the dynamics of the catalase and peroxidase activity were analyzed at 2 days, 4 days, 6 days and 8 days. The results showed that the microwaves determined variations of catalase and peroxidase activities depending on the age of the plants, time of exposure to microwave action and state of seeds (germinated and non germinated) exposed to microwave.