Figure 4

Relationships among root responses, IP formation, and heavy metal bioaccumulation based on RPA. Solid and dashed lines represent the direct and indirect impact, respectively. *P < 0.05. **P < 0.01.

Relationships among root responses, IP formation, and heavy metal bioaccumulation based on RPA. Solid and dashed lines represent the direct and indirect impact, respectively. *P < 0.05. **P < 0.01.