GAMMA RADIATION EFFECT ON SUPEROXIDE DISMUTASE ACTIVITY IN HYPERICUM PERFORATUM L. AND ECHINACEA PURPUREA L., MOENCH

Abstract

In this paper we were focused on the activity of superoxide dismutase (SOD) in Hypericum perforatum L
and Echinacea purpurea L., Moench plantlets, obtained from seeds irradiated with gamma rays before germination.Total
activity as well as specific activity of SOD in Hypericum perforatum L. plantlets shows an inhibition, which becames
higher at higher irradiation doses. For Echinacea purpurea L. species, gamma radiation shows a slowly stimulative effect
of total activity of SOD for some of the higher doses, but the specific enzyme activity is inhibated for all irradiation doses
applyed on non-germinated irradiated seeds.