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Blaylock, M.J., Phytotech, Inc., One Deer Park Drive, Monmouth Junction, NJ 08852, United States
Salt, D.E., AgBiotech Center, Rutgers University, Cook College, P.O. Box 231, New Brunswick, NJ 08903, United States
Dushenkov, S., Phytotech, Inc., One Deer Park Drive, Monmouth Junction, NJ 08852, United States
Zakharova, O., Phytotech, Inc., One Deer Park Drive, Monmouth Junction, NJ 08852, United States
Gussman, C., Phytotech, Inc., One Deer Park Drive, Monmouth Junction, NJ 08852, United States
Kapulnik, Y., Phytotech, Inc., One Deer Park Drive, Monmouth Junction, NJ 08852, United States
Ensley, B.D., Phytotech, Inc., One Deer Park Drive, Monmouth Junction, NJ 08852, United States
Raskin, I., AgBiotech Center, Rutgers University, Cook College, P.O. Box 231, New Brunswick, NJ 08903, United States
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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Enhanced accumulation of Pb in Indian mustard by soil-applied chelating agents
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Blaylock, M.J., Phytotech, Inc., One Deer Park Drive, Monmouth Junction, NJ 08852, United States
Salt, D.E., AgBiotech Center, Rutgers University, Cook College, P.O. Box 231, New Brunswick, NJ 08903, United States
Dushenkov, S., Phytotech, Inc., One Deer Park Drive, Monmouth Junction, NJ 08852, United States
Zakharova, O., Phytotech, Inc., One Deer Park Drive, Monmouth Junction, NJ 08852, United States
Gussman, C., Phytotech, Inc., One Deer Park Drive, Monmouth Junction, NJ 08852, United States
Kapulnik, Y., Phytotech, Inc., One Deer Park Drive, Monmouth Junction, NJ 08852, United States
Ensley, B.D., Phytotech, Inc., One Deer Park Drive, Monmouth Junction, NJ 08852, United States
Raskin, I., AgBiotech Center, Rutgers University, Cook College, P.O. Box 231, New Brunswick, NJ 08903, United States
Enhanced accumulation of Pb in Indian mustard by soil-applied chelating agents
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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