Fig.1 Summary of HPLC analysis of biothiol concentrations in shoots and roots (in nmol·g-1 FW) in wild type (Col-0), cad2-1 , pad2-1 , rax1-1 and cad1-3 Arabidopsis thaliana treated with 0 and 3 µM Hg for 72 h. Different biothiols are represented by spheres with different colours, with sphere diameters proportional to concentrations found. The concentration-to-volume scale is represented by the grey spheres at the bottom. For statistics and complete description of concentration values, please see Supplementary Table 1.