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Potential of Gibberellic Acid 3 (GA3) for Enhancing the Phytoremediation Efficiency of Solanum nigrum L.

Abstract

A microcosm experiment with artificially contaminated soils was conducted in a greenhouse to evaluate the effect of gibberellic acid 3 (GA3) on phytoremediation efficiency of Solanum nigrum L. The GA3 was applied at three different concentrations (10, 100, 1000 mg L−1) to S. nigrum. Results indicated that GA3 can significantly (p < 0.05) increase the biomass of S. nigrum by 56 % at 1000 mg L−1. Concurrently, GA3 application increased Cd concentrations in the shoot of S. nigrum by 16 %. The combined effects resulted in an increase in the amount of Cd extracted by a single plant by up to 124 %. Therefore, it is possible to use GA3 to promote the Cd phytoremediation efficiency of S. nigrum.

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Acknowledgments

We acknowledge for the financial support of the Ministry of Agriculture of the People’s Republic of China (Grant No. 201203045). Thanks also to the greenhouse workers who have helped in the conducting of the work and the scientific colleagues who assisted in drafting and editing the paper.

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Correspondence to Yan’an Tong.

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Ji, P., Tang, X., Jiang, Y. et al. Potential of Gibberellic Acid 3 (GA3) for Enhancing the Phytoremediation Efficiency of Solanum nigrum L.. Bull Environ Contam Toxicol 95, 810–814 (2015). https://doi.org/10.1007/s00128-015-1670-x

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Keywords

  • Cadmium
  • Translocation
  • Greenhouse experiment
  • Soil contamination