Copper and cobalt accumulation in plants: a critical assessment of the current state of knowledge

[en] This review synthesizes contemporary understanding of copper–cobalt (Cu–Co) tolerance and accumulation in plants. Accumulation of foliar Cu and Co to > 300 μg g−1 is exceptionally rare globally, and known principally from the Copperbelt of Central Africa. Cobalt accumulation is also observed in a limited number of nickel (Ni) hyperaccumulator plants occurring on ultramafic soils around the world. None of the putative Cu or Co hyperaccumulator plants appears to comply with the fundamental principle of hyperaccumulation, as foliar Cu–Co accumulation is strongly dose-dependent. Abnormally high plant tissue Cu concentrations occur only when plants are exposed to high soil Cu with a low root to shoot translocation factor. Most Cu-tolerant plants are Excluders sensu Baker and therefore setting nominal threshold values for Cu hyperaccumulation is not informative. Abnormal accumulation of Co occurs under similar circumstances in the Copperbelt of Central Africa as well as sporadically in Ni hyperaccumulator plants on ultramafic soils; however, Co-tolerant plants behave physiologically as Indicators sensu Baker. Practical application of Cu–Co accumulator plants in phytomining is limited due to their dose-dependent accumulation characteristics, although for Co field trials may be warranted on highly Co-contaminated mineral wastes because of its relatively high metal value. © 2016 The Authors. New Phytologist © 2016 New Phytologist Trust

Disciplines :

Environmental sciences & ecology

Author, co-author :

Lange, B.; Hydrogeochemistry and Soil–Environment Interactions (HydrISE), UP.2012.10.102, Institut Polytechnique LaSalle Beauvais, Beauvais, 60026, France, Laboratory of Plant Ecology and Biogeochemistry, Université Libre de Bruxelles, Brussels, 1050, Belgium

van der Ent, A.; Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Brisbane, QLD 4072, Australia, Laboratoire Sols et Environnement, UMR 1120, Université de Lorraine – INRA, Vandoeuvre-les-Nancy, 54518, France

Baker, A. J. M.; Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Brisbane, QLD 4072, Australia, Laboratoire Sols et Environnement, UMR 1120, Université de Lorraine – INRA, Vandoeuvre-les-Nancy, 54518, France, School of BioSciences, The University of Melbourne, Parkville, VIC 3010, Australia

Echevarria, G.; Laboratoire Sols et Environnement, UMR 1120, Université de Lorraine – INRA, Vandoeuvre-les-Nancy, 54518, France

Mahy, Grégory ; Université de Liège - ULiège > Ingénierie des biosystèmes (Biose) > Biodiversité et Paysage

Malaisse, François ; Université de Liège - ULiège > Ingénierie des biosystèmes (Biose) > Biodiversité et Paysage

Meerts, P.; Laboratory of Plant Ecology and Biogeochemistry, Université Libre de Bruxelles, Brussels, 1050, Belgium

Pourret, O.; Hydrogeochemistry and Soil–Environment Interactions (HydrISE), UP.2012.10.102, Institut Polytechnique LaSalle Beauvais, Beauvais, 60026, France

Verbruggen, N.; Laboratory of Plant Physiology and Molecular Genetics, Université Libre de Bruxelles, Brussels, 1050, Belgium

Faucon, M.-P.; Hydrogeochemistry and Soil–Environment Interactions (HydrISE), UP.2012.10.102, Institut Polytechnique LaSalle Beauvais, Beauvais, 60026, France

Language :

English

Title :

Copper and cobalt accumulation in plants: a critical assessment of the current state of knowledge

Publication date :

2017

Journal title :

New Phytologist

ISSN :

0028-646X

eISSN :

1469-8137

Publisher :

Blackwell Publishing Ltd

Volume :

213

Issue :

Pages :

537-551

Peer reviewed :

Peer Reviewed verified by ORBi

Name of the research project :

ANR Programme "Investissements d’avenir" (ANR-10-LABX-21 – LABEX RESSOURCES21); ANR-14-CE04-0005 project "Agromine"

Funders :

FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture
ANR - Agence Nationale de la Recherche
ARC - Australian Research Council

Available on ORBi :

since 04 March 2021

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193

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162

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149

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217

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