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Functional activity and functional gene diversity of a Cu-contaminated soil remediated by aided phytostabilization using compost, dolomitic limestone and a mixed tree stand

hal.structure.identifierChinese Academy of Sciences [CAS]
hal.structure.identifierUniversity of Oklahoma [OU]
dc.contributor.authorXUE, Kai
hal.structure.identifierUniversity of Oklahoma [OU]
dc.contributor.authorZHOU, Jizhong
hal.structure.identifierUniversity of Oklahoma [OU]
dc.contributor.authorVAN NOSTRAND, Joy
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorMENCH, Michel
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBES, Clémence
hal.structure.identifierUniversità degli Studi di Firenze = University of Florence = Université de Florence [UniFI]
dc.contributor.authorGIAGNONI, Laura
hal.structure.identifierUniversità degli Studi di Firenze = University of Florence = Université de Florence [UniFI]
dc.contributor.authorRENELLA, Giancarlo
dc.date.issued2018
dc.identifier.issn0269-7491
dc.description.abstractEnTrace elements (TEs) availability, biochemical activity and functional gene diversity was studied in a Cu-contaminated soil, revegetated for six years with a mixed stand of willow, black poplar, and false indigo-bush, and amended or not with compost plus dolomitic limestone (OMDL). The OMDL amendment significantly reduced Cu and As availability and soil toxicity, and increased the biochemical activity and microbial functional diversity assessed with the GEOCHIP technique, as compared to the unamended soil (Unt). The OMDL soil showed significantly higher abundance of 25 functional genes involved in decomposition organic compounds, and 11, 3 and 11 functional genes involved in the N, P and S biogeochemical cycles. Functional gene abundance was positively correlated with nutrient contents but negatively correlated with Cu availability and soil toxicity. The abundance of microbial functional genes encoding for resistance to various TEs also increased, possibly due to the microbial proliferation and lower Cu exposure in the presence of high total soil Cu concentration. Genes encoding for antibiotic resistance due to the co-occurrence of TEs and antibiotic resistant genes on genetic mobile elements. Overall, phytomanagement confirmed its potential to restore the biological fertility and diversity of a severely Cu-contaminated soil, but the increase of TEs and antibiotic resistant gene abundances deserve attention in future studies.
dc.description.sponsorshipIntensify production, transform biomass to energy and novel goods and protect soils in Europe - ANR-15-SUSF-0007
dc.language.isoen
dc.publisherElsevier
dc.title.enFunctional activity and functional gene diversity of a Cu-contaminated soil remediated by aided phytostabilization using compost, dolomitic limestone and a mixed tree stand
dc.typeArticle de revue
dc.identifier.doi10.1016/j.envpol.2018.06.057
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalEnvironmental Pollution
bordeaux.page229-238
bordeaux.volume242
bordeaux.issuePart A
bordeaux.peerReviewedoui
hal.identifierhal-02625157
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02625157v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Environmental%20Pollution&rft.date=2018&rft.volume=242&rft.issue=Part%20A&rft.spage=229-238&rft.epage=229-238&rft.eissn=0269-7491&rft.issn=0269-7491&rft.au=XUE,%20Kai&ZHOU,%20Jizhong&VAN%20NOSTRAND,%20Joy&MENCH,%20Michel&BES,%20Cl%C3%A9mence&rft.genre=article


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