Hydroponic screening of poplar for trace element tolerance and accumulation

International Journal of Phytoremediation
Aude MigeonMichel Chalot

Abstract

Using the nutrient film technique, we screened 21 clones of poplar for growth in the presence of a mix of trace elements (TE) and for TE accumulation capacities. Poplar cuttings were exposed for four weeks to a multipollution solution consisting in 10 microM Cd, Cu, Ni, and Pb, and 200 microM Zn. Plant biomass and TE accumulation patterns in leaves varied greatly between clones. The highest Cd and Zn concentrations in leaves were detected in P. trichocarpa and P. trichocarpa hybrids, with the clone Skado (P. trichocarpa x P. maximowiczii) accumulating up to 108 mg Cd kg(-1) DW and 1510 mg Zn kg(-1) DW when exposed to a multipollution context. Our data also confirm the importance of pH and multipollution, as these factors greatly affect TE accumulation in above ground biomass. The NFT technique applied here to a large range of poplar clones also revealed the potential of the Rochester, AFO662 and AFO678 poplar clones for use in phytostabilization programs and bioenergy production, where production of less contaminated above ground biomass is suitable.

References

Jan 27, 1998·Journal of Trace Elements in Medicine and Biology : Organ of the Society for Minerals and Trace Elements (GMS)·R BargagliF Monaci
Sep 12, 2002·Environment International·S Granero, J L Domingo
Mar 12, 2004·Annual Review of Plant Physiology and Plant Molecular Biology·D. E. SaltI. Raskin
Jun 28, 2005·Environment International·Yujing CuiJianzhong Liang
Mar 3, 2007·BMC Genomics·Fenghai DuanRobert B Norgren
Jun 18, 2009·Environmental Science and Pollution Research International·Valérie BertBart Vandecasteele
Jun 27, 2009·Environmental Science and Pollution Research International·Jaco VangronsveldMichel Mench
Jun 22, 2010·Environmental Science and Pollution Research International·Sara Di LonardoCristina Gonnelli
Jul 14, 2010·Cellular and Molecular Life Sciences : CMLS·Aude MigeonMichel Chalot
Aug 26, 2010·International Journal of Phytoremediation·Fabrizio PietriniAngelo Massacci
May 24, 2011·International Journal of Phytoremediation·Olena P ZhivotovskyMiaomiao Ge

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