Fig. 4From: Remediation mechanism of “double-resistant” bacteria—Sedum alfredii Hance on Pb- and Cd-contaminated soilUptake of Pb and Cd by Sedum alfredii Hance under different Pb and Cd concentration treatments. This figure represents the changes of Pb and Cd contents in aboveground and underground parts of Sedum alfredii Hance at different Pb and Cd concentration treatments. A shows the Pb content in the shoot of plants under different treatments, C corresponds to underground; B shows the Cd content in the shoot of plants under different treatments, D corresponds to underground. Different letters indicate a significant difference at P < 0.05Back to article page