Effects of Mn-toxicity on root, stem and leaf Mn concentration, Mn uptake and Mn distribution. (A-C) Root, stem and leaf Mn concentration. (D) Mn uptake per plant. (E-G) Mn distribution in roots, stems and leaves. (H) Mn uptake per root DW. Bars represent means ± SE (n = 4). Different letters above the bars indicate a significant difference at P < 0.05.