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Influence of Cd and the plant rhizosphere on bacterial community structure. Non-metric multidimensional scaling ordination of bacterial communities using weighted (A) and unweighted (B) UniFrac distance. Ordination stress values are 0.10 and 0.12, respectively. “°” indicate bulk-soil community samples, “Δ” indicate rhizosphere community samples. Color is indicative of Cd treatment: Green = 0 mg Cd kg−1 soil; Amber = 20 mg Cd kg−1 soil; Red = 100 mg Cd kg−1 soil.
