Copper uptake, essentiality, toxicity, detoxification and risk assessment in soil-plant environment.
Antioxidants
Copper
Homeostasis
Risk assessment
Transporter proteins
Journal
Chemosphere
ISSN: 1879-1298
Titre abrégé: Chemosphere
Pays: England
ID NLM: 0320657
Informations de publication
Date de publication:
Nov 2020
Nov 2020
Historique:
received:
05
11
2019
revised:
08
06
2020
accepted:
14
06
2020
pubmed:
1
7
2020
medline:
18
9
2020
entrez:
30
6
2020
Statut:
ppublish
Résumé
Copper (Cu) is an essential metal for human, animals and plants, although it is also potentially toxic above supra-optimal levels. In plants, Cu is an essential cofactor of numerous metalloproteins and is involved in several biochemical and physiological processes. However, excess of Cu induces oxidative stress inside plants via enhanced production of reactive oxygen species (ROS). Owing to its dual nature (essential and a potential toxicity), this metal involves a complex network of uptake, sequestration and transport, essentiality, toxicity and detoxification inside the plants. Therefore, it is vital to monitor the biogeo-physiochemical behavior of Cu in soil-plant-human systems keeping in view its possible essential and toxic roles. This review critically highlights the latest understanding of (i) Cu adsorption/desorption in soil (ii) accumulation in plants, (iii) phytotoxicity, (iv) tolerance mechanisms inside plants and (v) health risk assessment. The Cu-mediated oxidative stress and resulting up-regulation of several enzymatic and non-enzymatic antioxidants have been deliberated at molecular and cellular levels. Moreover, the role of various transporter proteins in Cu uptake and its proper transportation to target metalloproteins is critically discussed. The review also delineates Cu build-up in plant food and accompanying health disorders. Finally, this review proposes some future perspectives regarding Cu biochemistry inside plants. The review, to a large extent, presents a complete picture of the biogeo-physiochemical behavior of Cu in soil-plant-human systems supported with up-to-date 10 tables and 5 figures. It can be of great interest for post-graduate level students, scientists, industrialists, policymakers and regulatory authorities.
Identifiants
pubmed: 32599387
pii: S0045-6535(20)31630-1
doi: 10.1016/j.chemosphere.2020.127436
pii:
doi:
Substances chimiques
Antioxidants
0
Reactive Oxygen Species
0
Soil
0
Soil Pollutants
0
Copper
789U1901C5
Types de publication
Journal Article
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
127436Informations de copyright
Copyright © 2020 Elsevier Ltd. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest Authors declare no conflict of interest.