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Title: | 128-Toxic Effect of Cadmium as Affected by Humic Acid on Lettuce (Lactuca sativa L.) and Antioxidant Changes . |
Authors: | Haghighi, M. Kafi, M. Taghavi, T. Sadat Kashi, A. Fang, P. Gui-Xiao, L. |
Keywords: | Water Quality Superoxide Dismutase (SOD) Peroxides (POD) Heavy Metal Cadmium |
Issue Date: | 2009 |
Publisher: | Allied Publishers Pvt. Limited, New Delhi |
Abstract: | We studied the binding of Cd to humic acid. The influence of a Cd-humic complex on enzyme activities (superoxide dismutases, peroxidases), availability of Cd and biomass compared with the behavior of no treatment (control). It was examined through a hydroponics system in lettuce. Treatments were: control (no additions), humic acid (0, 100 and 1000 mg L-1), and Cd (0, 2 and 4 mg 1:1). Enzyme activities increased significantly with increasing rates of cadmium. A significant increase (P<0.05) in cadmium content of leaves result in a considerable decrease in the biomass (P<0.05). Based on these results, it can be concluded that the humic acid applied in the media led to a decrease in the metal adsorption with plant. This material can be used to reduce the availability and mobility of heavy metals in the soils, too. |
URI: | http://117.252.14.250:8080/jspui/handle/123456789/5165 |
Appears in Collections: | Proceedings of the International Conference on Water, Environment, Energy and Society (WEES-2009), 12-16 January 2009 at New Delhi, India, Vol.-3 |
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128-Toxic Effect of Cadmium as Affected by Humic Acid on Lettuce (Lactuca sativa L.) and Antioxidant Changes ..pdf | 2.96 MB | Adobe PDF | View/Open |
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