Figure 2.

Inoculation of bacterial isolates into the rhizosphere of axenic plants leads to increased Se accumulation in shoots (A) and roots (B) of plants supplied with 20 μm selenate. The mean and sd values of three replicates are shown. All bacterial strains were isolated from the rhizosphere of Indian mustard plants except for strains BM3 and BA5, which were isolated from the rhizosphere of salt-marsh bulrush plants. The differences in tissue Se accumulation for axenic plants compared with plants inoculated with bacteria were significant in most cases (P < 0.05). The following bacteria-treated plants showed nonsignificant differences from axenic tissue Se accumulation: shoot Se accumulation for strains BJ13, BJ6, BJ11, and BJ15, and both root and shoot Se accumulation for strain BM3. DW, Dry weight.