Fig. 6. Mature plant root metal accumulation for wild-type (WT) and SHST1 overexpressing (SHST1-4C and SHST1-12C) Indian mustard plants. Shown is the root metal concentration after hydroponically grown plants were treated for 14 d with a metal(loid) concentration as indicated in Materials and Methods. Shown are means ± SE (n = 5 samples pooled from two plants each). The letters above the bars indicate statistically significant differences between groups (ANOVA with pairwise post-hoc analyses, = 0.05)