Action of caffeine and sodium azide on activity of some antioxidative enzymes in Carum carvi l. seedlings

Caffeine and sodium azide treatments determine variations of oxidative stress implied enzymes, depending both on used concentration and treatment duration. The catalase activity intensifies in 6 hours treatment, in direct relation with caffeine concentration increase, fact proving the accumulation of a bigger amount of hydrogen peroxide that it must be neutralized by catalase. Peroxidase do not displays significant variations in the applied treatments, while superoxide dismutase has a more intense activity in 12 hours treatment.