Uptake of Cd in switchgrass cv Alamo under 20 µ mol L−1 CdCl2 stress. (A) Cd concentration in root, (B) Cd concentration in shoot, and (C) Cd concentration in whole plant, and (D) translocation factor (TF). TF represents metal concentration in shoot/root and denotes metal translocation. Cd = noninoculated Cd-control plant with 20 µ mol L−1 CdCl2 stress and Bc09 + Cd, So23 + Cd, E02 + Cd, Oj24 + Cd, and Mixed + Cd (combination of the four strain) = plant inoculated with endophytic PGPB with 20 µ mol L−1 CdCl2 stress. The bar represents ± SE (n = 5). Columns not sharing a significance letter are significantly different according to Duncan’s Multiple Range Test at p < 0.05.