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Composition, biomass and activity of microflora, and leaf yields and foliar elemental concentrations of lettuce, after in situ stabilization of an arsenic-contaminated soil

hal.structure.identifierUniversità degli Studi di Firenze = University of Florence = Université de Florence [UniFI]
dc.contributor.authorASCHER, Judith
hal.structure.identifierUniversità degli Studi di Firenze = University of Florence = Université de Florence [UniFI]
dc.contributor.authorCECCHERINI, M. T.
hal.structure.identifierUniversità degli Studi di Firenze = University of Florence = Université de Florence [UniFI]
dc.contributor.authorLANDI, L.
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorMENCH, Michel
hal.structure.identifierUniversità degli Studi di Firenze = University of Florence = Université de Florence [UniFI]
dc.contributor.authorPIETRAMELLARA, G.
hal.structure.identifierUniversità degli Studi di Firenze = University of Florence = Université de Florence [UniFI]
dc.contributor.authorNANNIPIERI, P.
hal.structure.identifierUniversità degli Studi di Firenze = University of Florence = Université de Florence [UniFI]
dc.contributor.authorRENELLA, G.
dc.date.issued2009
dc.identifier.issn0929-1393
dc.description.abstractEnBeringite (B) and zerovalent iron grit (Z), singly and in combination (BZ), were added to a loamy sand soil contaminated by trace elements (Reppel, Belgium), mainly by arsenic (As), to reduce As labile fractions and phytoavailability. An uncontaminated sandy soil was studied for comparison. Soils were placed in large lysimeters cultivated with maize and vegetables for 6 years. pH, organic C and total N content increased in amended soils. The Z and BZ treatments reduced the Ca(NO3)2− extractable soil As and As uptake by lettuce. The BZ lettuces had also the lowest foliar Pb, Cd, Zn, and Mn concentrations. All amendments had positive effects on the soil microbial biomass and reduced the qCO2. Glucose mineralization was increased in Z and BZ amended soils. Acid phosphomonoesterase activity was higher in the untreated soil than in the other soils; the alkaline phosphomonoesterase, phosphodiesterase and protease activities were increased by Z and BZ treatments, whereas B amendment had less positive effects. Genetic fingerprinting using Denaturing Gradient Gel Electrophoresis (DGGE) revealed shifts in the composition of eubacterial and fungal communities of the amended soils. Microbial species richness decreased rather than increased in the treated soils, regardless of reduced trace element availability and increased soil microbial biomass and activity.
dc.language.isoen
dc.publisherElsevier
dc.subjectSOIL MICROBIAL DIVERSITY
dc.subjectCENDRE DE HOUILLE
dc.subjectDIVERSITÉ MICROBIENNEL
dc.subjectÉLECTROPHORÈSE SUR GEL EN GRADIENT DÉNATURANT
dc.subject.enSOIL BIOCHEMICAL ACTIVITY
dc.subject.enCOAL FLY ASH
dc.subject.enSOIL REMEDIATION
dc.subject.enZEROVALENT IRON GRIT
dc.title.enComposition, biomass and activity of microflora, and leaf yields and foliar elemental concentrations of lettuce, after in situ stabilization of an arsenic-contaminated soil
dc.typeArticle de revue
dc.identifier.doi10.1016/j.apsoil.2009.01.001
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalApplied Soil Ecology
bordeaux.page351-359
bordeaux.volume41
bordeaux.issue3
bordeaux.peerReviewedoui
hal.identifierhal-02656849
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02656849v1
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