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Copper phytoavailability in vineyard topsoils as affected by pyoverdine supply

hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorCORNU, Jean-Yves
dc.contributor.authorRANDRIAMAMONJY, S.
dc.contributor.authorGUTIERREZ, M.
dc.contributor.authorROCCO, K.
hal.structure.identifierLaboratoire de Planétologie et Géodynamique [UMR 6112] [LPG]
dc.contributor.authorGAUDIN, Pierre
hal.structure.identifierInstitut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux [IPREM]
dc.contributor.authorOUERDANE, Laurent
hal.structure.identifierLaboratoire de Planétologie et Géodynamique [UMR 6112] [LPG]
dc.contributor.authorLEBEAU, T.
dc.date.accessioned2024-04-08T11:49:58Z
dc.date.available2024-04-08T11:49:58Z
dc.date.issued2019-12
dc.identifier.issn0045-6535
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195364
dc.description.abstractEnPyoverdine (Pvd) is a bacterial siderophore produced by some Pseudomonads species that can bind copper in addition to iron in soil. Pvd is expected to alter the dynamics and the ecotoxicity of Cu in vineyard soils. This study investigated the extent to which the mobility and the phytoavailability of Cu varied among vineyard soils with different pH and how they were affected by a supply of Pvd. Pvd was supplied (or not) to ten vineyard topsoils with pH ranging from 5.9 to 8.6 before metal was extracted with 0.005 M CaCl2. Cu mobility was assessed through its total concentration and Cu phytoavailability through its free ionic concentration measured in the CaCl2 extract. Cu mobility varied by a factor of six and Cu phytoavailability by a factor of 5000 among the soil samples. In the CaCl2 extract, the concentration of Cu2+ was not correlated with the concentration of total Cu but was correlated with pH. This revealed that Cu phytoavailability depends to a great extent on Cu complexation in soil pore water, the latter being highly sensitive to pH. Adding Pvd enhanced the mobility of Cu in the soils including in carbonate soils. The Pvd-mobilization factor for Cu varied from 1.4 to 8 among soils, linked to the availability of Fe and Al in the solid phase and to Pvd partitioning between the solid and the liquid phase. Adding Pvd reduced the concentration of Cu2+ in CaCl2 extract, which challenges the idea of using Pvd-producing bacteria to promote Cu phytoextraction.
dc.language.isoen
dc.publisherElsevier
dc.rights.urihttp://creativecommons.org/licenses/by-nc/
dc.subject.ent Complexation
dc.subject.enIon-selective electrode
dc.subject.enBioaugmentation
dc.subject.enMetals
dc.subject.enSiderophores
dc.subject.enCaCl2 extrac
dc.title.enCopper phytoavailability in vineyard topsoils as affected by pyoverdine supply
dc.typeArticle de revue
dc.identifier.doi10.1016/j.chemosphere.2019.124347
dc.subject.halChimie
dc.subject.halSciences de l'environnement
dc.subject.halChimie/Polymères
dc.subject.halChimie/Matériaux
dc.subject.halChimie/Chimie théorique et/ou physique
bordeaux.journalChemosphere
bordeaux.page124347
bordeaux.volume236
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02408252
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02408252v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Chemosphere&rft.date=2019-12&rft.volume=236&rft.spage=124347&rft.epage=124347&rft.eissn=0045-6535&rft.issn=0045-6535&rft.au=CORNU,%20Jean-Yves&RANDRIAMAMONJY,%20S.&GUTIERREZ,%20M.&ROCCO,%20K.&GAUDIN,%20Pierre&rft.genre=article


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