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Contribution of remobilization to the loading of cadmium in durum wheat grains: impact of post-anthesis nitrogen supply

hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
hal.structure.identifierUniversité de Toulouse [UT]
dc.contributor.authorYAN, Bo-Fang
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorNGUYEN, Christophe
hal.structure.identifierUniversité de Toulouse [UT]
dc.contributor.authorPOKROVSKY, O. S.
hal.structure.identifierUniversité de Toulouse [UT]
dc.contributor.authorCANDAUDAP, F.
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorCORIOU, Cécile
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorBUSSIERE, Sylvie
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorROBERT, Thierry
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorCORNU, Jean-Yves
dc.date.accessioned2024-04-08T12:03:43Z
dc.date.available2024-04-08T12:03:43Z
dc.date.issued2018
dc.identifier.issn0032-079X
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/196280
dc.description.abstractEnThis study focuses on quantifying the contribution of remobilization to the amount of cadmium accumulated in durum wheat grains. The impact of post-anthesis N supply was tested in two cultivars that differ in their shoot biomass partitioning. Two French durum wheat cultivars were grown hydroponically and exposed to 100 nM Cd. After anthesis, the plants were fed with a solution enriched in the stable isotope Cd-111 to trace the Cd newly absorbed, and subjected or not to nitrogen deprivation. Plants were sampled at anthesis and grain maturity to assess the post-anthesis fluxes of Cd and N among organs. Cd remobilized from pre-anthesis stores contributed to more than half of the Cd accumulated in mature grains. Cd was mainly remobilized from stem and poorly remobilized from leaves. Stopping N supply during grain filling enhanced N remobilization but had no impact on post-anthesis uptake and remobilization of Cd, and thereby, on Cd concentration in grains. No difference was observed between the two cultivars in the contribution of Cd remobilization and its dependence toward post-anthesis N supply. Cd remobilization significantly contributes to the accumulation of Cd in durum wheat grains. Cd remobilization is not tightly linked with N remobilization and behaves like a senescent-independent process in durum wheat.
dc.language.isoen
dc.publisherSpringer Verlag
dc.subjectsenescence
dc.subject.enlow-dose cadmium
dc.subject.encereal
dc.subject.enpost-anthesis uptake
dc.subject.enremobilization
dc.subject.enstable isotope labeling
dc.title.enContribution of remobilization to the loading of cadmium in durum wheat grains: impact of post-anthesis nitrogen supply
dc.typeArticle de revue
dc.identifier.doi10.1007/s11104-018-3560-6
dc.subject.halSciences du Vivant [q-bio]
dc.subject.halSciences de l'environnement
bordeaux.journalPlant and Soil
bordeaux.page591-606
bordeaux.volume424
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.issue1-2
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02628887
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02628887v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Plant%20and%20Soil&rft.date=2018&rft.volume=424&rft.issue=1-2&rft.spage=591-606&rft.epage=591-606&rft.eissn=0032-079X&rft.issn=0032-079X&rft.au=YAN,%20Bo-Fang&NGUYEN,%20Christophe&POKROVSKY,%20O.%20S.&CANDAUDAP,%20F.&CORIOU,%20C%C3%A9cile&rft.genre=article


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