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Contrasting effects of pyoverdine on the phytoextraction of Cu and Cd in a calcareous soil

hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorCORNU, Jean-Yves
hal.structure.identifierLaboratoire d'innovation moléculaire et applications [LIMA]
dc.contributor.authorELHABIRI, M.
dc.contributor.authorFERRET, C.
dc.contributor.authorGEOFFROY, V.A.
hal.structure.identifierLaboratoire Vigne Biotechnologie et Environnement [LVBE]
dc.contributor.authorJEZEQUEL, K.
hal.structure.identifierLaboratoire Vigne Biotechnologie et Environnement [LVBE]
dc.contributor.authorLEVA, Y.
hal.structure.identifierEquipe Dépollution Biologique des Sols
dc.contributor.authorLOLLIER, M.
dc.contributor.authorSCHALK, I.J.
hal.structure.identifierLaboratoire de Planétologie et Géodynamique [UMR 6112] [LPG]
dc.contributor.authorLEBEAU, T.
dc.date.accessioned2024-04-08T12:07:38Z
dc.date.available2024-04-08T12:07:38Z
dc.date.issued2014-05
dc.identifier.issn0045-6535
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/196474
dc.description.abstractEnEnhanced metal phytoextraction by the use of siderophore-producing bacteria (SPB) has received a lot of attention in the past decade. Bacterial siderophores are able to bind a wide range of metals other than iron and thus should enhance their phytoavailability in contaminated matrices. However, the impact of bacterial siderophores in the soil-plant transfer of metals is not yet fully elucidated, as underlined by the opposing results reported in the literature regarding the efficiency of coupling phytoextraction with bioaugmentation by SPB. The present study focuses on one bacterial siderophore, the pyoverdine (Pvd), produced by Pseudomonas aeruginosa. The coordination properties of Pvd towards Cd(II) and Cu(II) were determined and the effect of Pvd supply was assessed on (i) the mobility (CaCl2 extractions), (ii) the phytoavailability (DGT measurements) and (iii) the phytoextraction of Cd and Cu, in a calcareous soil. The stability constant of Pvd-Cu (K-LCu = 10(20.1)) was found much higher than that of Pvd-Cd (K-Lcd = 10(8.2)). The major finding was the agreement observed between Pvd coordination properties and Pvd impact on metals phytoextraction. Pyoverdine, supplied at 250 mu mol kg(-1) soil, enhanced the mobility, the phytoavailability and the phytoextraction of Cu while the fate of Cd was not affected. All these results were compared to those reported for chelate-assisted phytoextraction. Their relevance in using SPB for phytoremediation is discussed.
dc.language.isoen
dc.publisherElsevier
dc.subjectcomplexation
dc.subjectcooridination properties
dc.subject.enbacterial siderophore
dc.subject.enbioavailability
dc.subject.enDGT
dc.subject.enmetals
dc.title.enContrasting effects of pyoverdine on the phytoextraction of Cu and Cd in a calcareous soil
dc.typeArticle de revue
dc.identifier.doi10.1016/j.chemosphere.2013.11.070
dc.subject.halSciences de l'environnement
bordeaux.journalChemosphere
bordeaux.page212-219
bordeaux.volume103
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02408275
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02408275v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Chemosphere&rft.date=2014-05&rft.volume=103&rft.spage=212-219&rft.epage=212-219&rft.eissn=0045-6535&rft.issn=0045-6535&rft.au=CORNU,%20Jean-Yves&ELHABIRI,%20M.&FERRET,%20C.&GEOFFROY,%20V.A.&JEZEQUEL,%20K.&rft.genre=article


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