Notice of Retraction: Phytoextraction Cd from Contaminated Soils Using Chrysanthemum carinatum: A New Potential Cd-Hyperaccumulator
It is more recently interesting in using hyperaccumulators for decontamination of heavy metal polluted soils. In this study, the effects of different concentrations of Cd on growth of Chrysanthemum carinatum and Cd uptake and accumulation were investigated. Although the addition of Cd (10-200 mg kg-1) inhibited the plants growth, and the biomass of shoots and roots was suffered 35.9%-67.9% and 13.0%-65.2% decrease, respectively, when compared with the control group, the reduction in the biomass of aerial parts did not exhibit statistical significance (P ; 50 mg kg-1. The Cd concentrations in tissues of plant were positively correlated with Cd contents in soils, and the Cd concentrations in stem, leaf and shoot exceeded 100 mg kg-1 when soil Cd was at 25 mg kg-1. Meanwhile, the dominating Cd absorption by C. carinatum was in the shoots, up to 51.4%-69.7% in the whole plant, and the BF values were all greater than 1.0. Therefore, C. carinatum can be considered as a new Cd-hyperaccumulator and could be use in the remediation of Cd polluted sites.