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Enhanced Accumulation of Pb in Indian Mustard by Soil-Applied Chelating Agents
Abstract
Phytoremediation is emerging as a potential cost-effective solution for the remediation of contaminated soils. Because contaminants such as lead (Pb) have limited bioavailability in the soil, a means of solubilizing the Pb in the soil and facilitating its transport to the shoots of plants is vital to the success of phytoremediation. Indian mustard ( Brassica juncea ) was used to demonstrate the capability of plants to accumulate high tissue concentrations of Pb when grown in Pb-contaminated soil. Concentrations of 1.5% Pb in the shoots of B. juncea were obtained from soils containing 600 mg of Pb/kg amended with synthetic chelates such as EDTA. The accumulation of Pb in the tissue corresponded to the concentration of Pb in the soil and the concentration of EDTA added to the soil. The accumulation of Cd, Cu, Ni, and Zn from contaminated soil amended with EDTA and other synthetic chelators was also demonstrated. The research indicates that the accumulation of metal in the shoots of B. juncea can be enhanced through the application of synthetic chelates to the soil, facilitating high biomass accumulation as well as metal uptake.
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Citations
Cited by
A comparison of technologies for remediation of heavy metal contaminated soils
Khalid, S., Shahid, M., Niazi, N. K., Murtaza, B., Bibi, I., & Dumat, C. (2017) · Journal of Geochemical Exploration · doi:10.1016/j.gexplo.2016.11.021 · Cited by 1,356
Phytoremediation of soil metals
Chaney, R. L., Malik, M., Li, Y. M., Brown, S. L., Brewer, E. P., Angle, J. S., & Baker, A. J. (1997) · Current Opinion in Biotechnology · doi:10.1016/s0958-1669(97)80004-3 · Cited by 1,254
Heavy Metal Polluted Soils: Effect on Plants and Bioremediation Methods
Chibuike, G. U., & Obiora, S. C. (2014) · Applied and Environmental Soil Science · doi:10.1155/2014/752708 · Cited by 1,164
Role of organic amendments on enhanced bioremediation of heavy metal (loid) contaminated soils
Park, J. H., Lamb, D., Paneerselvam, P., Choppala, G., Bolan, N., & Chung, J.-W. (2011) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2010.09.082 · Cited by 936
Evangelou, M. W. H., Ebel, M., & Schaeffer, A. (2007) · Chemosphere · doi:10.1016/j.chemosphere.2007.01.062 · Cited by 632
Metadata
- Authors
- Blaylock, M. J., Salt, D. E., Dushenkov, S., Zakharova, O., Gussman, C., Kapulnik, Y., Ensley, B. D., & Raskin, I.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 1997-02-27
- Volume
- 31
- Issue
- 3
- Pages
- 860-865
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2074702931
- Cited by
- 1,257
- References
- 0
- FWCI
- 36.38
- Type
- journal article
- Language
- en
- Open access
- closed
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- Blaylock, M. J., Salt, D. E., Dushenkov, S., Zakharova, O., Gussman, C., Kapulnik, Y., Ensley, B. D., & Raskin, I. (1997). Enhanced Accumulation of Pb in Indian Mustard by Soil-Applied Chelating Agents. Environmental Science & Technology. https://doi.org/10.1021/es960552a
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