Fig. 2From: Copper stress induces antioxidant responses and accumulation of sugars and phytochelatins in Antarctic Colobanthus quitensis (Kunth) Bartl.Oxidative stress parameters and non-enzymatic antioxidant activity. a ROS content (black bars) and MDA content (white bars) in C. quitensis subjected to copper and aluminum. b Non-enzymatic antioxidant activity as a DPPH-scavenging (black bars) and FRAP-value (white bars). Bars represent mean of three independent measurements. Significant differences were determined using ANOVA (P < 0.05)Back to article page