Rapid reduction of arsenate in the medium mediated by plant roots.

  title={Rapid reduction of arsenate in the medium mediated by plant roots.},
  author={Xiaolong Xu and S. P. Mcgrath and F. J. Zhao},
  journal={The New phytologist},
  volume={176 3},
Microbes detoxify arsenate by reduction and efflux of arsenite. Plants have a high capacity to reduce arsenate, but arsenic efflux has not been reported. Tomato (Lycopersicon esculentum) and rice (Oryza sativa) were grown hydroponically and supplied with 10 microm arsenate or arsenite, with or without phosphate, for 1-3 d. The chemical species of As in nutrient solutions, roots and xylem sap were monitored, roles of microbes and root exudates in As transformation were investigated and efflux of… CONTINUE READING
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