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Plant-driven removal of heavy metals from soil: uptake, translocation, tolerance mechanism, challenges, and future perspectives

  • Sveta Thakur
  • Lakhveer SinghEmail author
  • Zularisam Ab Wahid
  • Muhammad Faisal Siddiqui
  • Samson Mekbib Atnaw
  • Mohd Fadhil Md Din
Article

Abstract

Increasing heavy metal (HM) concentrations in the soil have become a significant problem in the modern industrialized world due to several anthropogenic activities. Heavy metals (HMs) are non-biodegradable and have long biological half lives; thus, once entered in food chain, their concentrations keep on increasing through biomagnification. The increased concentrations of heavy metals ultimately pose threat on human life also. The one captivating solution for this problem is to use green plants for HM removal from soil and render it harmless and reusable. Although this green technology called phytoremediation has many advantages over conventional methods of HM removal from soils, there are also many challenges that need to be addressed before making this technique practically feasible and useful on a large scale. In this review, we discuss the mechanisms of HM uptake, transport, and plant tolerance mechanisms to cope with increased HM concentrations. This review article also comprehensively discusses the advantages, major challenges, and future perspectives of phytoremediation of heavy metals from the soil.

Keywords

Phytoremediation Metal ion uptake Translocation Tolerance mechanisms 

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Sveta Thakur
    • 1
  • Lakhveer Singh
    • 1
    Email author
  • Zularisam Ab Wahid
    • 1
  • Muhammad Faisal Siddiqui
    • 2
  • Samson Mekbib Atnaw
    • 1
  • Mohd Fadhil Md Din
    • 3
  1. 1.Faculty of Engineering TechnologyUniversiti Malaysia PahangKuantanMalaysia
  2. 2.Advanced Environmental Biotechnology Centre, Nanyang Environment and Water Research InstituteNanyang Technological UniversitySingaporeSingapore
  3. 3.Department of Environmental Engineering, Faculty of Civil EngineeringUniversiti Teknologi Malaysia (UTM)Johor BahruMalaysia

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