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Role of Phytochelatins (PCs), Metallothioneins (MTs), and Heavy Metal ATPase (HMA) Genes in Heavy Metal Tolerance

  • Khushboo Chaudhary
  • Swati Agarwal
  • Suphiya Khan
Chapter
Part of the Fungal Biology book series (FUNGBIO)

Abstract

Phytoremediation has been approved an economical technology for the cleanup of environmental contaminants and biomass production. Germplasm of hyperaccumulators is the backbone of this technology. Therefore, understanding the genetics of hyperaccumulation is an important tool for the enhancement of hyperaccumulation efficiency. Phytochelatins (PCs) and metallothioneins (MTs) and heavy metal ATPase (HMA) genes play a crucial role in signaling, uptake, detoxification, and accumulation of metal. Their combined role enhances the hyperaccumulation efficiency. This chapter highlights the role of these genes, their mechanism of action, their structure, and their applications in the transgenic approach of hyperaccumulation. Further, it also highlights the role of uptake and detoxification of metals by cellular mechanisms which facilitate the phytoremediation of heavy metals from contaminated areas.

Keywords

Heavy metal ATPase Hyperaccumulator Phytochelatins Metallothioneins 

Notes

Acknowledgments

The authors are deeply thankful to Prof. Aditiya Shastri for the generous financial support to complete this research work, the Bioinformatics Centre of Banasthali University, Newai (Rajasthan), India, for computational work, and also to the funding support from “MHRD Project on Center of Excellence in Water and Energy” Frontier Areas of Science and Technology (FAST 5-5/2014 TS VII).

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Khushboo Chaudhary
    • 1
  • Swati Agarwal
    • 1
  • Suphiya Khan
    • 1
  1. 1.Department of Bioscience and BiotechnologyBanasthali UniversityTonkIndia

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