Changes in plant growth, Cd partitioning and xylem sap composition in two sunflower cultivars exposed to low Cd concentrations in hydroponics
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | CORNU, Jean-Yves | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | BUSSIERE, Sylvie | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | CORIOU, Cécile | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | ROBERT, Thierry | |
| hal.structure.identifier | Biologie du fruit et pathologie [BFP] | |
| dc.contributor.author | MAUCOURT, Mickaël | |
| hal.structure.identifier | Biologie du fruit et pathologie [BFP] | |
| dc.contributor.author | DEBORDE, Catherine | |
| hal.structure.identifier | Biologie du fruit et pathologie [BFP] | |
| dc.contributor.author | MOING, Annick | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | NGUYEN, Christophe | |
| dc.date.accessioned | 2024-04-08T11:53:26Z | |
| dc.date.available | 2024-04-08T11:53:26Z | |
| dc.date.issued | 2020 | |
| dc.identifier.issn | 0147-6513 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/195534 | |
| dc.description.abstractEn | This study characterizes sunflower response to the levels of Cd encountered in moderately Cd-polluted soils. Two sunflower cultivars differing in their ability to sequestrate Cd in roots were exposed to low concentrations of Cd (0.5 nM or 100 nM) in hydroponics and sampled after 18 days (258 degree-days) when ten leaves were fully expanded. Plant growth, Cd uptake and partitioning among organs were monitored along with the ionomic (ICP-MS) and the metabolic (H-1-NMR) composition of the xylem sap. Sunflower tolerance to Cd differed between the two cultivars. The cultivar with the highest ability to sequestrate Cd in roots (Kapllan) was more tolerant to Cd than the one with the lowest ability (ES RICA). The 23% penalization of plant growth observed at 100 nM in cultivar ES RICA was associated with reduced xylem loading fluxes of soluble sugars, perhaps pointing to disruption of carbohydrate metabolism. Retention of Cd in the stem was higher at 100 nM than at 0.5 nM in the Cd-sensitive cultivar ES RICA, which can be seen as a sunflower strategy to restrict the amount of Cd delivered to the leaves under Cd stress. No direct connection was found between the speciation of Cd in the xylem sap and the Cd translocation efficiency, although significant changes in the free ionic fraction of Cd were observed between the two cultivars at 0.5 nM. The relevance of these results in promoting the use of sunflower in phytomanagement of Cd-polluted soils is discussed. | |
| dc.description.sponsorship | Développement d'une infrastructure française distribuée pour la métabolomique dédiée à l'innovation - ANR-11-INBS-0010 | |
| dc.description.sponsorship | Simulateur numérique de l'accumulation par les cultures des éléments traces minéraux contaminants du sol - ANR-11-CESA-0008 | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject | Métabolomique | |
| dc.subject | Métabolisme | |
| dc.subject.en | Genotypic variation | |
| dc.subject.en | Low Cd exposure | |
| dc.subject.en | Phytomanagement | |
| dc.subject.en | Sunflower | |
| dc.subject.en | Tolerance | |
| dc.subject.en | 1H-NMR metabolomics | |
| dc.title.en | Changes in plant growth, Cd partitioning and xylem sap composition in two sunflower cultivars exposed to low Cd concentrations in hydroponics | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.ecoenv.2020.111145 | |
| dc.subject.hal | Sciences du Vivant [q-bio] | |
| dc.subject.hal | Sciences du Vivant [q-bio]/Biologie végétale | |
| dc.subject.hal | Sciences du Vivant [q-bio]/Biologie végétale/Amélioration des plantes | |
| bordeaux.journal | Ecotoxicology and Environmental Safety | |
| bordeaux.volume | 205 | |
| bordeaux.hal.laboratories | Interactions Soil Plant Atmosphere (ISPA) - UMR 1391 | * |
| bordeaux.institution | Bordeaux Sciences Agro | |
| bordeaux.institution | INRAE | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-02926808 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-02926808v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Ecotoxicology%20and%20Environmental%20Safety&rft.date=2020&rft.volume=205&rft.eissn=0147-6513&rft.issn=0147-6513&rft.au=CORNU,%20Jean-Yves&BUSSIERE,%20Sylvie&CORIOU,%20C%C3%A9cile&ROBERT,%20Thierry&MAUCOURT,%20Micka%C3%ABl&rft.genre=article |
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