GIAGNONI, Laura; LUIZ, Gustavo; GIONGO, Adriana; DE OLIVEIRA SILVEIRA, Andressa; ARDISSONE, Alexandria; TRIPLETT, Eric; MENCH, Michel; RENELLA, Giancarlo

doi:10.3390/agronomy10050719

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GIAGNONI, Laura
Università degli Studi di Firenze = University of Florence = Université de Florence [UniFI]

LUIZ, Gustavo
Pontifícia Universidade Católica do Rio Grande do Sul [Brasil] = Pontifical Catholic University of Rio Grande do Sul [Brazil] = Université catholique pontificale de Rio Grande do Sul [Brésil] [PUC-RS]

GIONGO, Adriana
Pontifícia Universidade Católica do Rio Grande do Sul [Brasil] = Pontifical Catholic University of Rio Grande do Sul [Brazil] = Université catholique pontificale de Rio Grande do Sul [Brésil] [PUC-RS]

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Article de revue

Ce document a été publié dans

Agronomy. 2020-05, vol. 10, n° 5, p. 1-14

MDPI

Résumé en anglais

The chemical properties, ecotoxicity, and microbiome of leachates from phytomanaged Cu-contaminated soils were analyzed. The phytomanagement was carried out using Cu-tolerant poplar Populus trichocarpa × deltoides cv. Beaupré and black bent Agrostis gigantea L., aided by soil amendments, i.e., dolomitic limestone (DL) and compost (OM), alone and in combination (OMDL). Plants plus either DL or OMDL amendments reduced in leachates the electrical conductivity, the Cu concentration, and the concentration of total organic C except for the OMDL treatment, and decreased leachate toxicity towards bacteria. Total N concentration increased in the OM leachates. The aided phytostabilization increased the culturable bacteria numbers and the proportion of Cu-resistant bacteria in the leachates, as compared to the leachate from the untreated soil. Phytomanagement also enriched the microbial communities of the leachates with plant beneficial bacteria. Overall, the Cu stabilization and phytomanagement induced positive changes in the microbial communities of the soil leachates.< Réduire

Mots clés en anglais

metal polluted soil

soil leachate

aided phytostabilization

soil toxicity

bacterial Cu-resistance

microbial diversity

DOI

http://dx.doi.org/10.3390/agronomy10050719

Project ANR

COntinental To coastal Ecosystems: evolution, adaptability and governance - ANR-10-LABX-0045
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