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Accumulation of Cd, Cu and Zn in shoots of maize (Zea mays L.) exposed to 0.8 or 20 nM Cd during vegetative growth and the relation with xylem sap composition

hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorNGUYEN, Christophe
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorSOULIER, Anne-Julie
hal.structure.identifierUnité de service et de recherches en analyses végétales et environnementales [USRAVE]
dc.contributor.authorMASSON, Pierre
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorBUSSIERE, Sylvie
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorCORNU, Jean-Yves
dc.date.accessioned2024-04-08T12:11:39Z
dc.date.available2024-04-08T12:11:39Z
dc.date.issued2016
dc.identifier.issn0944-1344
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/196702
dc.description.abstractEnThis work focuses on the exposure of maize plants to nanomolar concentrations of Cd, which is relevant for agricultural soils cropped with food and feed plants. Maize plants were cultivated in nutrient solution at 0.8 or 20 nM Cd during the vegetative growth stages. No significant hormesis or toxic effects of Cd were observed on maize growth, but a decrease in the allocation of Cd to shoots between the 0.8 and 20 nM Cd exposures revealed that the plants already responded to these low concentrations of Cd according to a shoot Cd excluder strategy. The Cd, Cu and Zn concentrations in shoots decreased with time as the result of an early decrease in the root/shoot ratio and of a decrease in the coefficient of allocation to aboveground for Zn and Cd at 20 nM. As a consequence, shoots of young plants were richer in micronutrients Cu and Zn but also in toxic Cd. The rate of delivery of Cd, Cu and Zn from xylem sap was successfully used to predict the time course of concentrations of Cd, Cu and Zn in the shoot. However, it overestimated the actual concentrations of Cd in the shoot, presumably because the reallocation of this trace element from shoots back to roots was not taken into account.
dc.language.isoen
dc.publisherSpringer Verlag
dc.subject.entrace elements
dc.subject.enzinc
dc.subject.enpartitioning
dc.subject.enxylem sap
dc.subject.encadmium
dc.subject.endilution
dc.subject.encopper
dc.subject.engrowth
dc.title.enAccumulation of Cd, Cu and Zn in shoots of maize (Zea mays L.) exposed to 0.8 or 20 nM Cd during vegetative growth and the relation with xylem sap composition
dc.typeArticle de revue
dc.identifier.doi10.1007/s11356-015-5782-y
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalEnvironmental Science and Pollution Research
bordeaux.page3152-3164
bordeaux.volume23
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.issue4
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-01512022
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01512022v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Environmental%20Science%20and%20Pollution%20Research&rft.date=2016&rft.volume=23&rft.issue=4&rft.spage=3152-3164&rft.epage=3152-3164&rft.eissn=0944-1344&rft.issn=0944-1344&rft.au=NGUYEN,%20Christophe&SOULIER,%20Anne-Julie&MASSON,%20Pierre&BUSSIERE,%20Sylvie&CORNU,%20Jean-Yves&rft.genre=article


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