Plant and Soil

, Volume 331, Issue 1–2, pp 91–104 | Cite as

Copper uptake kinetics in hydroponically-grown durum wheat (Triticum turgidum durum L.) as compared with soil’s ability to supply copper

  • Matthieu N. Bravin
  • Bastien Le Merrer
  • Laurence Denaix
  • André Schneider
  • Philippe Hinsinger
Regular Article


This study investigated (a) net Cu uptake kinetics in durum wheat (Triticum turgidum durum L.) exposed to free Cu2+ activities in solution ranging from 0.4 to 2,420 nM and (b) the relative importance of plant uptake and soil’s ability to supply Cu2+ to the roots. Plant Cu flux showed a hyperbolic shape, enabling to estimate the Michaelis–Menten kinetic parameters (F max and K M) for durum wheat. Plant Cu flux was then compared with soil Cu flux as assessed by the Diffusive Gradient in Thin film technique on seven soil samples. This comparison suggested that the rate-limiting process of Cu bioavailability to durum wheat would be plant uptake kinetics in most contaminated soils with the exception of moderately contaminated, calcareous soils. However, theoretical considerations targeted soil’s ability to supply Cu as the rate-limiting process in most soils for Cu (hyper-) accumulator plants with requirement larger than that of common crop species.


Bioavailability Influx Kinetics Metal Plant Rhizosphere 



We thank Yves Dudal for introduction to PHREEQC, Jean-Claude Davidian, Catherine Curie and Alain Mollier for their advices about the design of the uptake kinetic experiment and Pierre Berthomieu to provide free access to F-AAS. Didier Arnal, Michael Clairotte and Lucien Roger are also acknowledged for technical assistance. We thanked the two anonymous reviewers for their very constructive comments that substantially increased the quality of the manuscript. Financial support was provided by the PNETOX programme of the French Ministry of Ecology and Sustainable Development.

Supplementary material

11104_2009_235_MOESM1_ESM.doc (88 kb)
ESM 1 (DOC 88 kb)


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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • Matthieu N. Bravin
    • 1
    • 3
  • Bastien Le Merrer
    • 1
  • Laurence Denaix
    • 2
  • André Schneider
    • 2
  • Philippe Hinsinger
    • 1
  1. 1.INRA, UMR 1222 Ecologie Fonctionnelle & Biogéochimie des Sols (INRA-IRD-SupAgro)Place VialaMontpellierFrance
  2. 2.INRA, UMR 1220 Transferts sol-plante et Cycles des Eléments Minéraux dans les écosystèmes cultivés (INRA-ENITAB)Villenave d’OrnonFrance
  3. 3.CIRAD, UPR 78 Recyclage et RisqueMontpellierFrance

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