title: Toxic effects of 1-methyl-3-octylimidazolium bromide on the wheat seedlings.
abstract: 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 [Csmim]Br can inhibit photosynthesis and lead to oxidative stress to wheat seedlings.
authors.affiliation: College of Life Sciences, Henan Normal University, Xinxiang 453007, China. liuping5812@sina.com
authors.forename: Ping
authors.initials: P
authors.lastname: Liu
authors.forename: Yifeng
authors.initials: Y
authors.lastname: Ding
authors.forename: Haiying
authors.initials: H
authors.lastname: Liu
authors.forename: Liping
authors.initials: L
authors.lastname: Sun
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Li
authors.forename: Jianji
authors.initials: J
authors.lastname: Wang
mesh_terms: D000975:Antioxidants / Q000378:metabolism; D007093:Imidazoles / Q000633:toxicity*; D015227:Lipid Peroxidation / Q000187:drug effects; D010539:Permeability / Q000187:drug effects; D010860:Pigments, Biological / Q000378:metabolism; D018515:Plant Leaves / Q000187:drug effects / Q000378:metabolism; D011392:Proline / Q000378:metabolism; D036226:Seedlings / Q000187:drug effects*; D014908:Triticum / Q000187:drug effects*
chemical_list: C534649:1-methyl-3-octylimidazolium bromide; D000975:Antioxidants; D007093:Imidazoles; D010860:Pigments, Biological; D011392:Proline