GARRAUD, Justine; PLIHON, Hélène; CAPIAUX, Hervé; LE GUERN, Cécile; MENCH, Michel; LEBEAU, Thierry

doi:10.1080/15226514.2023.2221740

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GARRAUD, Justine
Laboratoire de Planétologie et Géosciences [UMR_C 6112] [LPG]

PLIHON, Hélène
Laboratoire de Planétologie et Géosciences [UMR_C 6112] [LPG]

CAPIAUX, Hervé
Laboratoire de Planétologie et Géosciences [UMR_C 6112] [LPG]

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Article de revue

Ce document a été publié dans

International Journal of Phytoremediation. 2024, vol. 26, n° 1, p. 63-81

Taylor & Francis

Résumé en anglais

Bioaugmentation of soils can increase the mobilization of metal(loid)s from the soil-bearing phases. However, once desorbed, these metal(loid)s are mostly complexed to the dissolved organic matter (DOM) in the soil solution, which can restrict their availability to plants (roots mainly taking up the free forms) and then the phytoextraction performances. Firstly the main drivers influencing phytoextraction are reminded, then the review focuses on the DOM role. After having reminding the origin, the chemical structure and the lability of DOM, the pool of stable DOM (the most abundant in the soil) most involved in the complexation of metal(loid)s is addressed in particular by focusing on carboxylic and/or phenolic groups and factors controlling metal(loid) complexation with DOM. Finally, this review addresses the ability of microorganisms to degrade metal(loid)-DOM complexes as an additional lever for increasing the pool of free metal(loid) ions, and then phytoextraction performances, and details the origin of microorganisms and how they are selected. The development of innovative processes including the use of these DOM-degrading microorganisms is proposed in perspectives.< Réduire

Mots clés en anglais

bacteria

bioaugmentation

carboxylic acid groups

complexing agent

phenolic groups

phytomanagement

DOI

http://dx.doi.org/10.1080/15226514.2023.2221740

Project ANR

Biofortified and climate-resilient food and fodder production on marginal soils - ANR-20-FASU-0003

Origine

Importé de hal

Unités de recherche

BioGeCo (Biodiversité Gènes & Communautés) - UMR 1202