An international team of scientists has found a way to grow and harvest gold from crop plants.
Called phytomining, the technique of finding gold uses plants to extract particles of the precious metal from soil. Some plants have the natural ability to take up through their roots and concentrate metals such as nickel, cadmium and zinc in their leaves and shoots. For years, scientists have explored the use of such plants, dubbed hyperaccumulators, for pollution removal.
But there are no known gold hyperaccumulators, because gold doesn't easily dissolve in water so plants have no natural way of taking the particles in through their roots.
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