Rendiconti Lincei

, Volume 28, Issue 4, pp 673–678 | Cite as

Tagetes erecta (marigold), a phytoremediant for Ni- and Pb-contaminated area: a hydroponic analysis and factors involved

  • Khushboo Bardiya-Bhurat
  • Sangeeta Sharma
  • Yuthika Mishra
  • Chhaya Patankar
Article
  • 59 Downloads

Abstract

With increasing industrialization and increasing population, excess accumulation of heavy metals such as Cd2+, Cr6+, Cu2+, Ni2+, Pb2+ and Zn2+ in soils have caused the disruption of the terrestrial ecosystem. Different chemical, physical and biological techniques are being explored for the remediation and restoration of such heavy metal-polluted soil. This study aims to evaluate the tolerance capacity of Tagetes erecta for heavy metals Pb2+ and Ni2+ with the objective of using this plant for phytoremediation of heavy metal-polluted soil. The plant is found to tolerate up to 200 mmol of both the test heavy metals. Dry weight, root length, proline content and antioxidant activity increased significantly in all the treatments, whereas shoot length, wet weight and chlorophyll content of plantlets were adversely affected after 21 days of metal treatment in hydroponic culture condition. This study suggests that Tagetes erecta has developed a defense mechanism against heavy metal stress, suggesting its acceptability for phytoremediation in soil conservation.

Keywords

Phytoremediation Soil conservation Proline hyperaccumulation Metal tolerance Abiotic stress 

Notes

Acknowledgements

The authors are thankful to Dr. Sanjay Nagar for his constant support during working of the project and to Dr. Iti Gontia-Mishra for her valuable suggestions in the manuscript writing.

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Copyright information

© Accademia Nazionale dei Lincei 2017

Authors and Affiliations

  • Khushboo Bardiya-Bhurat
    • 1
  • Sangeeta Sharma
    • 1
  • Yuthika Mishra
    • 1
  • Chhaya Patankar
    • 1
  1. 1.Department of BiotechnologyIPS AcademyIndoreIndia

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