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Environmental Monitoring and Assessment

, Volume 149, Issue 1–4, pp 419–427 | Cite as

Cadmium tolerance and accumulation of Althaea rosea Cav. and its potential as a hyperaccumulator under chemical enhancement

  • Jia Nv Liu
  • Qi Xing Zhou
  • Song Wang
  • Ting Sun
Article

Abstract

The role of ornamental plants has drawn much attention as the urban pollution levels exacerbate. Althaea rosea Cav. had showed its strong tolerance and accumulation ability of Cd in our previous work, thus, the effects of ethylenediamine triacetic acid (EDTA), ethylenegluatarotriacetic acid (EGTA) and sodium dodecyl sulfate (SDS) on its Cd phytoremediation capacity were further investigated in this work. It reconfirmed that the species had strong tolerance and accumulation ability of Cd. Particularly, the species can be regarded as a potential Cd-hyperaccumulator through applying chemical agents. However, different chelators and surfactants had great differences in affecting hyperaccumulating characteristics of the species. EGTA and SDS could not only increase the dry biomass of the plants, but also promote Cd accumulation in shoots and roots. On the contrary, EDTA was toxic to the species by restraining the growth of plants, although it could promote Cd accumulation in shoots and roots of the plants to a certain extent. Thus, EGTA and SDS were effective in enhancing phytoremediation with Althaea rosea Cav. for Cd contaminated soils, while EDTA is ineffective in this regard.

Keywords

Ornamental plant Althaea rosea Cav. Hyperaccumulator Chelator Surfactant Cadmium 

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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • Jia Nv Liu
    • 1
    • 2
  • Qi Xing Zhou
    • 1
  • Song Wang
    • 3
  • Ting Sun
    • 2
  1. 1.Key Laboratory of Terrestrial Ecological Process, Institute of Applied EcologyChinese Academy of SciencesShenyangChina
  2. 2.College of SciencesNortheastern UniversityShenyangChina
  3. 3.College of Resources and Civil EngineeringNortheastern UniversityShenyangChina

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