Mechanisms of arsenic hyperaccumulation in Pteris species: root As influx and translocation

  title={Mechanisms of arsenic hyperaccumulation in Pteris species: root As influx and translocation},
  author={Charissa Y. Poynton and Jianwei W. Huang and Michael J. Blaylock and Leon V Kochian and Mark P. Elless},
Several species of fern from the Pteris genus are able to accumulate extremely high concentrations of arsenic (As) in the fronds. We have conducted short-term unidirectional As influx and translocation experiments with 73As-radiolabeled arsenate, and found that the concentration-dependent influx of arsenate into roots was significantly larger in two of these As-hyperaccumulating species, Pteris vittata (L.) and Pteris cretica cv. Mayii (L.), than in Nephrolepis exaltata (L.), a non-accumulating… CONTINUE READING
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