Figure 3. Activities of antioxidative enzymes (guaiacol peroxidase – GPX, ascorbate peroxidase – APX, glutathione reductase – GR) in chamomile plants after 48 h of exposure to various treatments as described in Fig. 1.

Data are means ± SDs (n = 4). Values for shoot or root followed by the same letter(s) are not significantly different according to Tukey’s test (P<0.05). Units are µmol min⁻¹ mg⁻¹ protein (GPX) and nmol min⁻¹ mg⁻¹ protein (APX, GR). Shoot means whole above-ground biomass.