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Scanning electron micrograph of fungus P. indica showing arsenic adsorption, accumulation, and precipitation. (A) Untreated fungus; (B) accumulation of arsenic in vacuoles and on cell wall of fungus (marked with black arrows) treated with arsenic (100 μM As); (C) Synthesis of insoluble precipitates of arsenic (marked with white arrows) on cell wall of fungus treated with arsenic (500 μM As).
