Toxic effects of 1-methyl-3-octylimidazolium bromide on the wheat seedlings
Ping Liu , Yifeng Ding , Haiying Liu , Liping Sun , Xiaoyu Li , Jianji Wang
DOI:
Received December 01, 2009,Revised May 06, 2010, Accepted , Available online
Volume 22,2010,Pages 1974-1979
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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 di erent 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.
