Lead chelation to immobilised Symphytum officinale L. (comfrey) root tannins.

@article{Chin2009LeadCT,
  title={Lead chelation to immobilised Symphytum officinale L. (comfrey) root tannins.},
  author={Lily Chin and David W M Leung and H Harry Taylor},
  journal={Chemosphere},
  year={2009},
  volume={76 5},
  pages={711-5}
}
Reported correlations between tannin level and metal accumulation within plant tissues suggest that metal-chelating tannins may help plants to tolerate toxic levels of heavy metal contaminants. This paper supports such correlations using a new method that demonstrated the ability of plant tannins to chelate heavy metals, and showed that the relative levels of tannins in tissues were quantitatively related to lead chelation in vitro. Using this in vitro metal chelation method, we showed that… CONTINUE READING