Fig. 2From: Nanoparticles induce genetic, biochemical, and ultrastructure variations in Salvadora persica callusActivity of POD isoforms in 45 days old Salvadora persica callus treated with Fe3O4, SiO2, or ZnO nanoparticles and the control. The POD activity was represented as relative band intensities of PODI, PODII, and PODIIIBack to article page