Journal ArticleDOI
Phytoextraction: The Use of Plants To Remove Heavy Metals from Soils
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TLDR
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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Journal ArticleDOI
Tolerância ao alumínio em cultivares de aveia branca sob cultivo hidropônico ( 1 )
José Antonio Gonzalez da Silva,Fernando Irajá Félix de Carvalho,Jefferson Luís Meirelles Coimbra,Eduardo Alano Vieira,Giovani Benin,Antonio Costa de Oliveira,Taciane Finatto,Ivandro Bertan,Giovani Olegário da Silva,Maicon Rubira Correa +9 more
TL;DR: The use of hidroponic culture to evaluate tolerance to aluminum toxicity in oat genotypes can be performed by measuring root regrowth, allowing phenotypically to discriminate tolerant genetic constitutions sensitivity.
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Effects of lead pollution on germination and seedling growth of turfgrass, Cynodon dactylon
TL;DR: The results indicated that 50–300 mg/kg of Pb(NO3)2 did not significantly influence germination and seedling growth responses of turfgrass, Cynodon dactylon, and this species will be useful in the phytoremediation and revegetation of P b contaminated soil.
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M. Umadevi,S. Avudainayagam +1 more
TL;DR: In this paper, the effects of Cadmium (Cd) and Chromium (Cr III & Cr VI) on dry matter production, enzyme activity and metal extraction potential of three fast growing pulp wood species viz., She Oak (Casuarina junghuhniana Miq.), The Forest Red Gum (Eucalyptus tereticornis Sm.) and The White Lead tree (Leucaena leucocephala Lam. de Wit).
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