Fig. 1From: White oak (Quercus fabri Hance) regenerated stump sprouts show few senescence symptoms during 40 years of growth in a natural forestLevels of antioxidative enzyme activities and peroxidation products in white oak leaves and shoots. SOD, superoxide dismutase; POD, peroxidase; CAT, catalase; MDA, malondialdehyde; H2O2, hydrogen peroxide, mol·g− 1; O2−, superoxide anion. Different letters above columns indicate significant differences (p < 0.5)Back to article page