Metal uptake and tolerance in hyperaccumulator plants: advancing phytomining strategies

Md Fadzil, Fariha Nafeesa and Mohamad, Mohd Azrul Naim and Repin, Rimi and Shamsul Harumain, Zakuan Azizi (2024) Metal uptake and tolerance in hyperaccumulator plants: advancing phytomining strategies. Rhizosphere, 29 (100836). pp. 2452-2198. E-ISSN 2452-2198

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Abstract

In the pursuit of field-applicable plants for phytomining high-value metals, understanding the molecular mechanisms governing metal uptake and tolerance in metal hyperaccumulator plant species is imperative. Metal hyperaccumulators, despite their capability to accumulate metals, face challenges of low biomass and limited survivability in harsh environments such as mine waste. This hinders their practical application in real-field settings. An alternative approach involves leveraging the genetic traits of non-hyperaccumulator plant species characterized by higher biomass, faster growth rates, and adaptability to diverse environmental conditions. By manipulating the genetic sequences of these non-hyperaccumulator plants, it becomes possible to enhance metal accumulation in their aerial tissues. To guide such genetic manipulations effectively, it is crucial to discern the unique characteristics of metal hyperaccumulator plants that enable them to accumulate high concentrations of valuable metals. This review focuses on elucidating the molecular mechanisms underpinning the uptake and tolerance of high-value metals, specifically gold (Au), palladium (Pd), silver (Ag), cobalt (Co), nickel (Ni), and copper (Cu), in metal hyperaccumulator plants. The aim is to outline these mechanisms comprehensively and propose avenues for future research that could advance the efficient uptake of valuable metals in field-applicable plants.

Item Type:	Article (Journal)
Uncontrolled Keywords:	Bioremediation Heavy metal pollution Membrane metal transporters Phytoremediation Soil microbiology
Subjects:	Q Science > Q Science (General) Q Science > QH Natural history > QH301 Biology T Technology > TN Mining engineering. Metallurgy > TN400 Ore deposits and mining of particular metals T Technology > TP Chemical technology > TP248.13 Biotechnology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Department of Biotechnology Kulliyyah of Science
Depositing User:	Dr Zakuan Azizi Shamsul Harumain
Date Deposited:	05 Jan 2024 16:31
Last Modified:	05 Jan 2024 16:31
URI:	http://irep.iium.edu.my/id/eprint/110047

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