Effects of Uranium (VI) Stress on Growth and Antioxidant System in Chinese Cabbage

Abstract:

Chinese cabbage plants exposed to different concentrations of Uranium in water culture were used to discuss the physiological and biochemical responses:the plant height growth rate,root elongation,superoxide dismutase (SOD),catalase (CAT),Peroxidase (POD),Chlorophyll a,Soluble protein.The results show that high Uranium stress can hinder the plants growth because the plant height growth rate and root elongation of the plants treated with high Uranium concentration were both lower than the control group.Exposure to excess concentration of Uranium decreased the content of chlorophyll a,soluble protein and the activity of SOD.The CAT activity was induced in the presence of 0.1mg/L uranium concentration and inhibited under higher uranium stress.While the stimulation of POD activity can indicate that it act as H₂O₂ scavengers.

• Periodical: Advanced Materials Research (Volumes 887-888)
• Pages: 581-584
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.887-888.581
• Online since: February 2014
• Authors: Lei Xie*, Wen Ling Tang
• Keywords: Antioxidant System, Chinese Cabbage, Uranium Accumulation, Uranium Stress

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