Toxic effects of 1-methyl-3-octylimidazolium bromide on the wheat seedlings  

作　　者：Ping Liu Yifeng Ding Haiying Liu Liping Sun Xiaoyu Li Jianji Wang 

机构地区：[1]College of Life Sciences, Henan Normal University, Xinxiang 453007, China [2]Key Laboratory for Environmental Pollution Control, Xinxiang 453007, China [3]College of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453007, China

出　　处：《Journal of Environmental Sciences》2010年第12期1974-1979,共6页环境科学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No. 20273019,20573034);the Innovation Project for University Prominent Research Talents of Henan,China(No. 2006KYCX021);the Project-sponsored by SRF for ROCS,SEM(No. [2006]331)

摘　　要：The toxic effects of 1-methyl-3-octylimidazolium bromide （[C8mim]Br） on wheat seedlings were evaluated. Wheat seedlings were cultivated in aqueous solution with [C8mim]Br at different concentrations （0, 1, 2, 4, 6, 8 mg/L）. The contents of photosynthetic pigment and proline, peroxidation of membrane lipid, and activities of antioxidation enzymes （superoxide dismutase, catalase, peroxidase and ascorbate peroxidase） in leaves were measured on day 7 after treatment with [C8mim]Br. The results showed that [C8mim]Br significantly decreased the contents of photosynthetic pigments, activities of antioxidant enzymes in the wheat leaves and in dry weight of seedlings, while increased the proline content and membrane lipid peroxidation. The results suggested that [C8mim]Br can inhibit photosynthesis and lead to oxidative stress to wheat seedlings.The toxic effects of 1-methyl-3-octylimidazolium bromide （[C8mim]Br） on wheat seedlings were evaluated. Wheat seedlings were cultivated in aqueous solution with [C8mim]Br at different concentrations （0, 1, 2, 4, 6, 8 mg/L）. The contents of photosynthetic pigment and proline, peroxidation of membrane lipid, and activities of antioxidation enzymes （superoxide dismutase, catalase, peroxidase and ascorbate peroxidase） in leaves were measured on day 7 after treatment with [C8mim]Br. The results showed that [C8mim]Br significantly decreased the contents of photosynthetic pigments, activities of antioxidant enzymes in the wheat leaves and in dry weight of seedlings, while increased the proline content and membrane lipid peroxidation. The results suggested that [C8mim]Br can inhibit photosynthesis and lead to oxidative stress to wheat seedlings.

关 键 词：[C8mim]Br wheat seedlings photosynthetic pigments antioxidant enzymes membrane lipid peroxidation 

分 类 号：S512.101[农业科学—作物学] TQ314.248[化学工程—高聚物工业]