Journal ArticleDOI
Phytoextraction: The Use of Plants To Remove Heavy Metals from Soils
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The high metal accumulation by some cultivars of B. juncea suggests that these plants may be used to clean up toxic metal-contaminated sites in a process termed phytoextraction.Abstract:
A small number of wild plants which grow on metal contaminated soil accumulate large amounts of heavy metals in their roots and shoots This property may be exploited for soil reclamation if an easily cultivated, high biomass crop plant able to accumulate heavy metals is identified Therefore, the ability of various crop plants to accumulate Pb in shoots and roots was compared While all crop Brassicas tested accumulated Pb, some cultivars of Brassica juncea (L) Czern showed a strong ability to accumulate Pb in roots and to transport Pb to the shoots (1083 mg Pb/g DW in the roots and 345 mg Pb/g DW in the shoots) B juncea was also able to concentrate Cr{sup -6}, Cd, Ni, Zn, and Cu in the shoots 58, 52, 31, 17, and 7 fold, respectively, from a substrate containing sulfates and phosphates as fertilizers The high metal accumulation by some cultivars of B juncea suggests that these plants may be used to clean up toxic metal-contaminated sites in a process termed phytoextractionread more
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Tolerance and Accumulation of Cadmium in Soil by Amaranthus hypochondriacus L. * : Tolerance and Accumulation of Cadmium in Soil by Amaranthus hypochondriacus L. *
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Phytoextractability of Cd from Soil by Some Oilseed Species as Affected by Sewage Sludge and Farmyard Manure
TL;DR: In this paper, a pot experiment was conducted on cadmium (Cd)-enriched (0, 40, 80, 120, 160 mg Cd kg−1 soil, using CdCl2), untreated (Unamended), 3% sewage sludge treated (SS-amended) and 3% farmyard manure-treated (FYM)-amended).
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Efficacy of multi-walled carbon nanotubes in regulating growth performance, total glutathione and redox state of Calendula officinalis L. cultivated on Pb and Cd polluted soil.
TL;DR: In this paper, the responses of lead (Pb) and cadmium (Cd) exposed pot marigold plants to various levels of multi-walled carbon nanotubes (MWCNTs) were investigated.
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Community considerations for quinoa production in the urban environment
ThomasE. C.,LavkulichL. M. +1 more
TL;DR: Thomas et al. as mentioned in this paper found that quinoa grown on brownfield sites in Vancouver, Canada may contain elevated levels of metals such as Cd, Cu and Pb, which can pose human health concerns.
Journal ArticleDOI
Can Cadmium Uptake by Chinese Cabbage be Reduced After Growing Cd-Accumulating Rapeseed?
TL;DR: In this paper, a pot experiment was conducted to test the hypothesis that the Cd uptake by Chinese cabbage ( Brassica pekinensis Rupr.) grown in rotation with rapeseed would be reduced due to the efficient removal of bioavailable Cd from soil solution by the rapeseed crops.