%0 Journal Article %T GAMMA RADIATION EFFECT ON SUPEROXIDE DISMUTASE ACTIVITY IN HYPERICUM PERFORATUM L. AND ECHINACEA PURPUREA L., MOENCH %A Vlad Artenie %A Daniela Luminita Ichim %A Gogu Gheorghita %A Mihaela Pintilei %J Analele £¿tiin£¿ifice Ale Universit£¿£¿ii Alexandru Ioan Cuza din Ia£¿i,Sectiunea II A : Genetica si Biologie Moleculara %D 2006 %I Alexandru Ioan Cuza University of Iasi %X 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. %U http://www.gbm.bio.uaic.ro/index.php/gbm/article/view/307