The aim of our study, conducted as a pot experiment, was to assess the potential of willow (Salix miyabeana), alfalfa (Medicago sativa), tall fescue (Festuca arundinacea), and Indian mustard (Brassica juncea) to remediate two brownfield soils differentially contaminated with Ag, Cu and Zn (up to 113.60, 47.50, and 117.00 mg kg−1 respectively). While aboveground Ag accumulation was highest in B. juncea (4.60 ± 2.58 mg kg−1), lower levels were also measured in M. sativa and F. arundinacea. Cu accumulation was observed in all species, but only in underground parts, and was highest in F. arundinacea (269.20 ± 74.75 mg kg−1), with a bioconcentration factor of 13.85. Salix miyabeana was found to have the highest Zn aerial tissue concentration (119.96 ± 20.04 mg kg−1). Because of its high Ag uptake, the remediation potential of B. juncea should be evaluated more extensively on the site from which we excavated the soil for this study. Given the multiple forms of contamination on the site and the differential specie-related uptake evident in our findings, we hypothesize that an optimal plantation allowing expression of complementary remediation functions would include B. juncea for extraction of Ag, in combination with F. arundinacea for stabilization of Cu and S. miyabeana for extraction of Zn.

Desjardins, D., Pitre, F., GUIDI NISSIM, W., Labrecque, M. (2016). Differential uptake of silver, copper and zinc suggests complementary species-specific phytoextraction potential. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION, 18(6), 598-604 [10.1080/15226514.2015.1086296].

Differential uptake of silver, copper and zinc suggests complementary species-specific phytoextraction potential

Werther Guidi Nissim;
2016

Abstract

The aim of our study, conducted as a pot experiment, was to assess the potential of willow (Salix miyabeana), alfalfa (Medicago sativa), tall fescue (Festuca arundinacea), and Indian mustard (Brassica juncea) to remediate two brownfield soils differentially contaminated with Ag, Cu and Zn (up to 113.60, 47.50, and 117.00 mg kg−1 respectively). While aboveground Ag accumulation was highest in B. juncea (4.60 ± 2.58 mg kg−1), lower levels were also measured in M. sativa and F. arundinacea. Cu accumulation was observed in all species, but only in underground parts, and was highest in F. arundinacea (269.20 ± 74.75 mg kg−1), with a bioconcentration factor of 13.85. Salix miyabeana was found to have the highest Zn aerial tissue concentration (119.96 ± 20.04 mg kg−1). Because of its high Ag uptake, the remediation potential of B. juncea should be evaluated more extensively on the site from which we excavated the soil for this study. Given the multiple forms of contamination on the site and the differential specie-related uptake evident in our findings, we hypothesize that an optimal plantation allowing expression of complementary remediation functions would include B. juncea for extraction of Ag, in combination with F. arundinacea for stabilization of Cu and S. miyabeana for extraction of Zn.
Articolo in rivista - Articolo scientifico
Biodegradation; Environmental; Copper; Environmental Restoration and Remediation; Festuca; Medicago sativa; Mustard Plant; Salix; Silver; Soil Pollutants; Species Specificity; Zinc;
English
598
604
7
Desjardins, D., Pitre, F., GUIDI NISSIM, W., Labrecque, M. (2016). Differential uptake of silver, copper and zinc suggests complementary species-specific phytoextraction potential. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION, 18(6), 598-604 [10.1080/15226514.2015.1086296].
Desjardins, D; Pitre, F; GUIDI NISSIM, W; Labrecque, M
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/358958
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