Zinc in soil-plant-human system: A data-analysis review

Document Type

Article

Source of Publication

Science of The Total Environment

Publication Date

12-1-2021

Abstract

Zinc (Zn) plays an important role in the physiology and biochemistry of plants due to its established essentiality and toxicity for living beings at certain Zn concentration i.e., deficient or toxic over the optimum range. Being a vital cofactor of important enzymes, Zn participates in plant metabolic processes therefore, alters the biophysicochemical processes mediated by Zn-related enzymes/proteins. Excess Zn can provoke oxidative damage by enhancing the levels of reactive radicals. Hence, it is imperative to monitor Zn levels and associated biophysicochemical roles, essential or toxic, in the soil-plant interactions. This data-analysis review has critically summarized the recent literature of (i) Zn mobility/phytoavailability in soil (ii) molecular understanding of Zn phytouptake, (iii) uptake and distribution in the plants, (iv) essential roles in plants, (v) phyto-deficiency and phytotoxicity, (vi) detoxification processes to scavenge Zn phytotoxicity inside plants, and (vii) associated health hazards. The review especially compares the essential, deficient and toxic roles of Zn in biophysicochemical and detoxification processes inside the plants. To conclude, this review recommends some Zn-related research perspectives. Overall, this review reveals a thorough representation of Zn bio-geo-physicochemical interactions in soil-plant system using recent data.

ISSN

1879-1026

Publisher

Elsevier

Disciplines

Life Sciences

Keywords

Zinc, Hormetic effect, Deficiency, Essentiality, Phytotoxicity, Optimum levels, Biofortification, Redox homeostasis, Oxidative burst, Stress response, Enzyme co-factor, Antioxidants, Risk hazards

Scopus ID

85120980214

Indexed in Scopus

yes

Open Access

no

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