Accumulation and Tolerance Characteristics of Zinc in Agropyron cristatum Plants Exposed to Zinc-Contaminated Soil

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Abstract

In phytoremediation, plants are used to stabilize or remove toxins from soil. In this study, a pot experiment was conducted in a greenhouse to evaluate the phytoremediation potential of Agropyron cristatum (Poaceae) grown on Zinc (Zn) contaminated soils. Results indicated that Zn accumulation in both shoots and roots increased with soil Zn concentration, and Zn concentrations in roots were greater than in shoots. A significantly negative correlation was found between translocation factor or bioconcentration factor values and Zn concentrations in soil. Overall, A. cristatum was Zn excluder with an innate capacity to tolerate Zn stress and may have potential for the phytostabilization of sites contaminated with Zn.

Keywords

Agropyron cristatum Translocation Bioconcentration Phytostabilization 
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Notes

Acknowledgments

This research was financially supported by the Scientific Innovation Ability Construction Project of Beijing Academy of Agriculture and Forestry Sciences (BAAFS) (Grant No. KJCX201101003) and the International Cooperation and Exchange Project of China (Grant No. 2008DFR30200). We are grateful to the anonymous reviewers and editors for their valuable suggestions and comments on the initial version of the manuscript.

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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Lin Meng
    • 1
  • Qiang Guo
    • 1
  • Peichun Mao
    • 1
  • Xiaoxia Tian
    • 1
  1. 1.Beijing Research and Development Center for Grass and EnvironmentBeijing Academy of Agriculture and Forestry SciencesBeijingChina

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