title: Potential of selected Canadian plant species for phytoextraction of trace elements from selenium-rich soil contaminated by industrial activity.
abstract: In this preliminary screening study, we tested the phytoextraction potential of nine Canadian native/well-adapted plant species on a soil highly polluted by trace elements (TE) from a copper refinery. Plant physiological parameters and soil cover index were monitored for a 12-week period. At the end of the trial, biomass yield, bioconcentration (BFC) and translocation (TF) factors for the main TE as well as phytoextraction potential were determined. Most plants were severely injured by the high pollution levels, showing symptoms of toxicity including chlorosis, mortality and very low biomass yield. However, Indian mustard showed the highest selenium extraction potential (65 mg m(-2)), even under harsh growing conditions. Based on our results, tall fescue and ryegrass, which mainly stored As, Cu, Pb and Zn within roots, could be used effectively for phytostabilization.
authors.affiliation: a Institut de recherche en biologie végétale, Montreal Botanical Garden , Montréal , Québec , Canada.
authors.forename: Werther Guidi
authors.initials: WG
authors.lastname: Nissim
authors.forename: Séverine
authors.initials: S
authors.lastname: Hasbroucq
authors.forename: Hafssa
authors.initials: H
authors.lastname: Kadri
authors.forename: Frederic E
authors.initials: FE
authors.lastname: Pitre
authors.forename: Michel
authors.initials: M
authors.lastname: Labrecque
mesh_terms: D001673:Biodegradation, Environmental; D002170:Canada; D052918:Environmental Restoration and Remediation; D007220:Industrial Waste / Q000032:analysis; D008669:Metallurgy; D010944:Plants / Q000378:metabolism*; D012643:Selenium / Q000032:analysis; D012989:Soil Pollutants / Q000378:metabolism*; D014131:Trace Elements / Q000378:metabolism*
chemical_list: D007220:Industrial Waste; D012989:Soil Pollutants; D014131:Trace Elements; D012643:Selenium
keywords: As; Se; heavy metals; indian mustard; phytoremediation; salix