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(A) Arsenic concentration (mg kg-1 dry weight) in Pteris vittata fronds. (B) Arsenic concentration (mg kg-1 dry weight) in P. vittata roots. (C) P. vittata frond biomass (g dry weight). (D) P. vittata root biomass (mg dry weight). Data are shown for plants grown in either agricultural soil (C) or on arsenic-contaminated soil (M), inoculated (with A, B, or AB) or not inoculated (n.i.).
