Fig. 6From: Copper stress induces antioxidant responses and accumulation of sugars and phytochelatins in Antarctic Colobanthus quitensis (Kunth) Bartl.GSH and PCs content. Grouped bars showing different polymerization degrees of GSH detected by HPLC. Bars represent mean of three independent measurements. Significant differences were determined using ANOVA (P < 0.05). The graph is presented in a logarithmic scaleBack to article page