“E crus-galli were then cultivated with and without root exudates from Belamcanda chinensis for 4 weeks. The growth of E crus-galli in metal-contaminated soils that contained root exudates showed increased roots and shoots when compared to E crus-galli grown without root exudates (p < 0.05). In addition, the accumulation of metal in E crus-galli that was cultivated with the root exudates was two- to fourfold higher than in plants that were cultivated without the root exudates. The exchangeable soil fraction in the rhizosphere of E crus-galli grown with root exudates was greater than when E crus-galli was grown without root exudates. Finally, the BCF and TF values of Cd, Cu and Pb were greater when the root exudates were added (p < 0.05),” wrote S. Kim and colleagues, Ewha Woman’s University.
The researchers concluded: “Taken together, these results indicate that root exudates can be used as a natural chelating agent to enhance phytoextraction.”
Kim and colleagues published their study in the Journal of Bioscience and Bioengineering (Enhanced heavy metal phytoextraction by Echinochloa crus-galli using root exudates. Journal of Bioscience and Bioengineering, 2010;109(1):47-50).
Additional information can be obtained by contacting I. Lee, Ewha Woman’s University, Div EcoSci, 11-1 Doehyundong, Seodaemungu Seoul 120750, South Korea.
The publisher of the Journal of Bioscience and Bioengineering can be contacted at: Society Bioscience Bioengineering Japan, Osaka University, Faculty Engineering, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.
Keywords: Country:South Korea, Bioengineering, Biomedical Engineering, Biosciences, Life Sciences
New bioengineering research from Ewha Woman’s University discussed
“E crus-galli were then cultivated with and without root exudates from Belamcanda chinensis for 4 weeks. The growth of E crus-galli in metal-contaminated soils that contained root exudates showed increased roots and shoots when compared to E crus-galli grown without root exudates (p < 0.05). In addition, the accumulation of metal in E crus-galli that was cultivated with the root exudates was two- to fourfold higher than in plants that were cultivated without the root exudates. The exchangeable soil fraction in the rhizosphere of E crus-galli grown with root exudates was greater than when E crus-galli was grown without root exudates. Finally, the BCF and TF values of Cd, Cu and Pb were greater when the root exudates were added (p < 0.05),” wrote S. Kim and colleagues, Ewha Woman’s University.
The researchers concluded: “Taken together, these results indicate that root exudates can be used as a natural chelating agent to enhance phytoextraction.”
Kim and colleagues published their study in the Journal of Bioscience and Bioengineering (Enhanced heavy metal phytoextraction by Echinochloa crus-galli using root exudates. Journal of Bioscience and Bioengineering, 2010;109(1):47-50).
Additional information can be obtained by contacting I. Lee, Ewha Woman’s University, Div EcoSci, 11-1 Doehyundong, Seodaemungu Seoul 120750, South Korea.
The publisher of the Journal of Bioscience and Bioengineering can be contacted at: Society Bioscience Bioengineering Japan, Osaka University, Faculty Engineering, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.
Keywords: Country:South Korea, Bioengineering, Biomedical Engineering, Biosciences, Life Sciences