Solanum nigrum L., A Plant Capable of Treating Cadmium Contaminated Soil

Abstract

    A study of Cadmium (Cd) absorption by Solanum nigrum L. (S. nigrum) was conducted through using outdoor pot- culture experiments from March to June 2015. Results showed that S. nigrum biomass compared with the control was not significantly different (P < 0.05) under the concentration of 10 - 25 mg/kg of Cd in soil. The ability to accumulate Cd in the above-ground parts was greater than 100 mg/kg dry biomass; TF and BF coefficient was greater than 1. The results of this study demonstrated that S. nigrum is a Cd-hyperaccumulator. This is an important finding that may contribute to solve heavy metal pollution problems as well as to apply phytoremediation in specific situations.