Bidens pilosa L. hyperaccumulating Cd with different species in soil and the role of EDTA on the hyperaccumulation

  • Xuekai Dou
  • Huiping DaiEmail author
  • Lidia Skuza
  • Shuhe WeiEmail author
Research Article


Investigating whether the same hyperaccumulator shows a high accumulation potential for different species of the same heavy metal in the soil has rarely been considered until now. In this experiment, Cd accumulation by a hyperaccumulator Bidens pilosa L. from soils spiked with 3 and 9 mg Cd kg−1 in the form of Cd(NO3)2, CdCl2, CdBr2, CdI2, CdSO4, CdF2, Cd(OH)2, CdCO3, Cd3(PO4)2, and CdS and effect of soil amendment with EDTA were determined. The results showed that the Cd concentrations in B. pilosa for high-solubility species were basically higher. But the enrichment factors (EFs) (shoot to soil Cd concentration ratio) and translocation factors (TFs) (shoot to root Cd concentration ratio) of low-solubility Cd species were all greater than 1, either indicating that there was a high Cd hyperaccumulative potentials of B. pilosa without considering on Cd species in soil. EDTA significantly improved B. pilosa Cd hyperaccumulation, especially for low-solubility Cd forms in soils. These results can perfectly explain the accumulation properties of one hyperaccumulator to different species of the same heavy metal. Phytoremediation may be applied for a wide scope for different Cd species–contaminated soil. Moreover, the total amount of Cd in soil was important when assessing the risk of Cd-contaminated soils.


Hyperaccumulative potential Bidens pilosa L. Cd species 


Funding information

This work was financially supported by the Natural Science Foundation of China (41571300, 31870488, 31270540 and 31070455), the Special Plan in the Major Research & Development of the 13th Five-Year Plan of China (2018YFC1800501, 2016YFD0800802), Projects of Shaanxi Province of China (2019JM-413, 17JS023, 2018SZS-27-07), and the project of Foreign Experts Bureau of Shaanxi province of China (GDT20186100430B).


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Key Laboratory of Pollution Ecology and Environment Engineering, Institute of Applied EcologyChinese Academy of SciencesShenyangChina
  2. 2.College of Biological Science & Engineering, Shaanxi Province Key Laboratory of Bio-resourcesShaanxi University of TechnologyHanzhongChina
  3. 3.Department of Molecular Biology and Cytology, Institute for Research on BiodiversityUniversity of SzczecinSzczecinPoland
  4. 4.University of Chinese Academy of SciencesBeijingPeople’s Republic of China

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