Effect of molecular weight of dissolved organic matter on toxicity and bioavailability of copper to lettuce.

@article{Wang2010EffectOM,
  title={Effect of molecular weight of dissolved organic matter on toxicity and bioavailability of copper to lettuce.},
  author={Xudong Wang and Xianni Chen and Shuai Liu and Xizu Ge},
  journal={Journal of environmental sciences},
  year={2010},
  volume={22 12},
  pages={1960-5}
}
To clarify the effects of molecular weight of dissolved organic matter (DOM) on the toxicity and bioavailability of copper (Cu) to plants, DOM extracted from chicken manure was ultra-filtered into four fractions according to their molecular weights by means of sequential-stage ultrafiltration technique. Lettuce seeds were germinated by being exposed to the solutions containing Cu2+ with or without different fractions of DOM. The concentration of copper in roots, leaves, sprouts and the length… CONTINUE READING