HYDROPONIC SCREENING OF POPLAR FOR TRACE ELEMENT TOLERANCE AND ACCUMULATION

被引：17

作者：

Migeon, Aude ^{[1
]}

Richaud, Pierre ^{[2
,3
,4
]}

Guinet, Frederic ^{[1
]}

Blaudez, Damien ^{[1
]}

Chalot, Michel ^{[1
]}

机构：

[1] Nancy Univ, Fac Sci & Technol, UMR INRA UHP Tree Microbe Interact 1136, F-54506 Vandoeuvre Les Nancy, France

[2] CEA, DSV, iBEB, Lab Echanges Membranaires & Signalisat, St Paul Les Durance, France

[3] CNRS, UMR 6191, St Paul Les Durance, France

[4] Univ Aix Marseille, St Paul Les Durance, France

来源：

INTERNATIONAL JOURNAL OF PHYTOREMEDIATION | 2012年 / 14卷 / 04期

关键词：

Populus; phytoremediation; cadmium tolerance; zinc tolerance; CONTAMINATED SOILS; METAL TOLERANCE; HEAVY-METALS; PHYTOREMEDIATION; CADMIUM; CLONES; WILLOW; SALIX; RESPONSES; EXPOSURE;

D O I：

10.1080/15226514.2011.620651

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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 amultipollution solution consisting in 10 mu MCd, Cu, Ni, and Pb, and 200 mu M 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.

引用

页码：350 / 361

页数：12