Fig. 1

Spider plot of the Cd [0 mg/kg (control (blue line)) and 150 mg/kg CdNO3 (yellow line)] effect on lettuce root growth (A) and seed germination (B) eight weeks after sowing and treatment with water, sulfate-reducing bacteria (SRB), Spirulina (SP) and co-application of SRB and SP (SRB + SP). The values of the calculated parameters were shown as relative to those of the control plants (Water treatment).