Reference : A multiple-level study of metal tolerance in Salix fragilis and Salix aurita clones
Scientific journals : Article
Life sciences : Phytobiology (plant sciences, forestry, mycology...)
http://hdl.handle.net/2268/164173
A multiple-level study of metal tolerance in Salix fragilis and Salix aurita clones
English
Evlard, Aricia* mailto [Université de Liège - ULiège > Sciences agronomiques > Laboratoire de Toxicologie environnementale >]
Sergeant, Kjell* mailto [Centre de Recherche Public — Gabriel Lippmann > Environment and Agrobiotechnologies > > >]
Printz, Bruno [Centre de Recherche Public — Gabriel Lippmann > Environment and Agrobiotechnologies > > >]
Guignard, Cédric [Centre de Recherche Public — Gabriel Lippmann > > > >]
Renaut, Jenny [Centre de Recherche Public — Gabriel Lippmann > > > >]
Campanella, Bruno [> >]
Paul, Roger mailto [Université de Liège - ULiège > Sciences agronomiques > Laboratoire de Toxicologie environnementale >]
Hausman, Jean-Francois [Centre de Recherche Public — Gabriel Lippmann > > > >]
* These authors have contributed equally to this work.
14-Apr-2014
Journal of Proteomics
Elsevier
101C
113-129
Yes (verified by ORBi)
International
1874-3919
1876-7737
Amsterdam
The Netherlands
[en] willow ; metal trace element ; proteomics
[en] The response of two willow clones (Salix fragilis (Sf) and S. aurita (Sa)) to the presence of metals (Zn, Cu, Cd, Ni) was studied. Rooted cuttings were planted in control and contaminated soil. After 100 days, different parameters (biomass, chlorophyll fluorescence (Fv/Fm), pigment and sugar concentrations, electrolyte leakage and proteome-level changes) were analyzed. The growth of Sa was not influenced by metals whereas Sf produced significantly less biomass when exposed to the pollutants. Furthermore, although Sa did not show a growth reduction in the presence of metals, the overall view of the physiological results among others the changes in the accumulation of sugars and pigments indicated that metals had a more severe impact on this clone. The response at the proteome level confirmed these observations. The growth reduction and the proteomic changes in Sf indicate that this clone adjusts its metabolism to maintain cellular homeostasis. Sa on the contrary maintains growth but the physiological and proteomics data suggests that this can only be done at the cost of cellular deregulation. Therefore high biomass is not linked with a good tolerance strategy. In a long-term study the survival of Sa might be compromised making it a poorer candidate for phytoremediation efforts.
http://hdl.handle.net/2268/164173
10.1016/j.jprot.2014.02.007

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