Multigene Coexpression (HMA9-CadWp-ZIP6) Enables Cadmium-Hyperaccumulating Transgenic Poplar for Efficient Soil Remediation

were generated and accumulated higher Cd(II) levels with a minimal growth penalty. In summary, we identified genes involved in Cd(II) absorbing, transporting, and detoxification, and coexpression of these genes in poplar enabled the development of new biomaterials for Cd(II)-contaminated soil phytoremediation.