Cited by 96Heavy metals in environmentHeavy Metals in PlantsPlant Micronutrient Interactions and Effects

Evidence of various mechanisms of Cd sequestration in the hyperaccumulator Arabidopsis halleri, the non-accumulator Arabidopsis lyrata, and their progenies by combined synchrotron-based techniques

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Isaure, Marie-Pierre, Huguet, Stéphanie, Meyer, Claire-Lise, Castillo-Michel, Hiram, Testemale, Denis, Vantelon, Delphine, Saumitou-Laprade, Pierre, Verbruggen, Nathalie +1 more·2015·Journal of Experimental Botany

Abstract

Arabidopsis halleri is a model plant for Zn and Cd hyperaccumulation. The objective of this study was to determine the relationship between the chemical forms of Cd, its distribution in leaves, and Cd accumulation and tolerance. An interspecific cross was carried out between A. halleri and the non-tolerant and non-hyperaccumulating relative A. lyrata providing progenies segregating for Cd tolerance and accumulation. Cd speciation and distribution were investigated using X-ray absorption spectroscopy and microfocused X-ray fluorescence. In A. lyrata and non-tolerant progenies, Cd was coordinated by S atoms only or with a small contribution of O groups. Interestingly, the proportion of O ligands increased in A. halleri and tolerant progenies, and they were predominant in most of them, while S ligands were still present. Therefore, the binding of Cd with O ligands was associated with Cd tolerance. In A. halleri, Cd was mainly located in the xylem, phloem, and mesophyll tissue, suggesting a reallocation process for Cd within the plant. The distribution of the metal at the cell level was further discussed. In A. lyrata, the vascular bundles were also Cd enriched, but the epidermis was richer in Cd as compared with the mesophyll. Cd was identified in trichomes of both species. This work demonstrated that both Cd speciation and localization were related to the tolerance character of the plant.

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Crossref · 10.1093/jxb/erv131

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Authors
Isaure, M.-P., Huguet, S., Meyer, C.-L., Castillo-Michel, H., Testemale, D., Vantelon, D., Saumitou-Laprade, P., Verbruggen, N., & Sarret, G.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • Université Libre de Bruxelles (BE)
  • European Synchrotron Radiation Facility (FR)
  • Synchrotron SOLEIL (FR)
Corresponding author
Isaure, Marie-Pierre
Venue
Journal of Experimental Botany
Published
2015-04-06
Volume
66
Issue
11
Pages
3201-3214
ISSN
  • 0022-0957 (ISSN-L)
  • 1460-2431
OpenAlex
W2053879602
Cited by
96
References
79
Citations by year
2026: 2 · 2025: 4 · 2024: 6 · 2023: 11 · 2022: 8 · 2021: 11 · 2020: 14 · 2019: 11 · 2018: 10 · 2017: 8 · 2016: 8 · 2015: 3
FWCI
6.00
Type
journal article
Language
en
Open access
Licence
other-oa
Locations
  • Journal of Experimental Botany (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, other-oa)
  • Dépôt institutionnel de l'Université libre de Bruxelles (Université Libre de Bruxelles) (submittedVersion)
Funders
  • Agence Nationale de la Recherche
  • Fonds De La Recherche Scientifique - FNRS
Topics
  • Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
  • Physical Sciences › Chemistry › Analytical Chemistry › Heavy Metals in Plants
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Micronutrient Interactions and Effects
Keywords
cadmium hyperaccumulation, Arabidopsis halleri, Arabidopsis lyrata, cadmium speciation, cadmium tolerance, interspecific hybridization, sulfur-containing ligands, oxygen ligands, xylem and phloem transport, trichomes, metal accumulation
MeSH terms
Cadmium, Hybridization, Genetic, Phenotype, Species Specificity, Spectrometry, X-Ray Emission, Tissue Distribution, Zinc, Synchrotrons, Arabidopsis, Plant Leaves, Plant Roots, Xylem

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