Cadmium uptake and distribution in Arabidopsis thaliana exposed to low chronic concentrations depends on plant growth
| hal.structure.identifier | Transfert Sol-Plante et Cycle des Eléments Minéraux dans les Ecosystèmes Cultivés [TCEM] | |
| dc.contributor.author | DAUTHIEU, M. | |
| hal.structure.identifier | Transfert Sol-Plante et Cycle des Eléments Minéraux dans les Ecosystèmes Cultivés [TCEM] | |
| dc.contributor.author | DENAIX, L. | |
| hal.structure.identifier | Transfert Sol-Plante et Cycle des Eléments Minéraux dans les Ecosystèmes Cultivés [TCEM] | |
| dc.contributor.author | NGUYEN, Cong Tu | |
| hal.structure.identifier | Transfert Sol-Plante et Cycle des Eléments Minéraux dans les Ecosystèmes Cultivés [TCEM] | |
| dc.contributor.author | PANFILI, F. | |
| hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
| dc.contributor.author | PERROT, F. | |
| hal.structure.identifier | Laboratoire de Chimie Analytique Bio-Inorganique et Environnement [LCABIE] | |
| dc.contributor.author | POTIN-GAUTIER, M. | |
| dc.date.issued | 2009 | |
| dc.identifier.issn | 0032-079X | |
| dc.description.abstractEn | This study tested the hypothesis that Cd uptake is correlated with the shoot or root growth of Arabidopsis thaliana ecotype Columbia cultivated hydroponically at environmentally relevant Cd concentrations: 20, 100 and 350 nmol L-1. Growth of both roots and shoots were delayed at 350 nmol L-1. The rate of Cd uptake determined by spiking the nutrient solution with Cd-109 for 24 h, was significantly correlated with the root growth rate. The fraction of Cd absorbed that was allocated to shoots was constant with time but decreased with increasing exposure to Cd. Autoradiography and gamma counting showed that Cd was preferentially allocated to developing leaves. Hence, the quantity of Cd in shoots depended both on the root growth, which probably governed the uptake, and on the maturity of the leaves, which may have determined the Cd allocated to shoots through changes in the transpiration stream. | |
| dc.language.iso | en | |
| dc.publisher | Springer Verlag | |
| dc.subject.en | Arabidopsis thaliana | |
| dc.subject.en | Cadmium uptake | |
| dc.subject.en | Cadmium partitioning | |
| dc.subject.en | Root growth rate | |
| dc.subject.en | Leaf maturity | |
| dc.title.en | Cadmium uptake and distribution in Arabidopsis thaliana exposed to low chronic concentrations depends on plant growth | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1007/s11104-009-9912-5 | |
| dc.subject.hal | Sciences de l'environnement/Biodiversité et Ecologie | |
| bordeaux.journal | Plant and Soil | |
| bordeaux.page | 239-249 | |
| bordeaux.volume | 322 | |
| bordeaux.issue | 1-2 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | in2p3-00414469 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Non spécifiée | |
| hal.origin.link | https://hal.archives-ouvertes.fr//in2p3-00414469v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Plant%20and%20Soil&rft.date=2009&rft.volume=322&rft.issue=1-2&rft.spage=239-249&rft.epage=239-249&rft.eissn=0032-079X&rft.issn=0032-079X&rft.au=DAUTHIEU,%20M.&DENAIX,%20L.&NGUYEN,%20Cong%20Tu&PANFILI,%20F.&PERROT,%20F.&rft.genre=article |
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