College of Physical Education, Henan Normal University, Xinxiang, Henan 453007, China.
Ecotoxicol Environ Saf. 2010 Jul;73(5):1046-50. doi: 10.1016/j.ecoenv.2010.01.017. Epub 2010 Feb 10.
To evaluate the toxicity of the ionic liquid 1-methyl-3-octylimidazolium bromide ([C(8)mim]Br) to Eisenia foetida, effects of [C(8)mim]Br on the growth, reproductive ability, and adenosine triphosphatase (ATPase) activity of earthworms were determined under laboratory conditions using artificial soil as substrate. The results showed that [C(8)mim]Br in high concentrations significantly inhibited the growth of the earthworms. These effects were enhanced with prolonged exposure to and increasing concentration of [C(8)mim]Br. E. foetida's reproductive ability was significantly inhibited after 42d of subchronic exposure to [C(8)mim]Br at a concentration >or=5 mg kg(-1) artificial soil (dry weight). During acute exposure, a high concentration of [C(8)mim]Br >or=40 mg kg(-1) artificial soil (dry weight) inhibited the activities of Na(+)-K(+)-ATPase and Mg(++)-ATPase after 3 and 7d of exposure. After 42d of subchronic exposure, the activity of both ATPases was inhibited in groups exposed to >or=5mg[C(8)mim]Brkg(-1) artificial soil (dry weight). These results indicate that treatment with the ionic liquid [C(8)mim]Br affects the growth, reproductive ability, and ATPase activity of earthworms E. foetida.
为了评估离子液体 1-甲基-3-辛基咪唑溴盐([C(8)mim]Br)对赤子爱胜蚓的毒性，在实验室条件下，以人工土壤为基质，研究了[C(8)mim]Br对赤子爱胜蚓生长、繁殖能力和三磷酸腺苷酶(ATPase)活性的影响。结果表明，高浓度的[C(8)mim]Br显著抑制了蚯蚓的生长。随着暴露时间的延长和浓度的增加，这些影响加剧。在慢性暴露 42d 后，[C(8)mim]Br在浓度大于或等于 5mgkg(-1)人工土壤（干重）时显著抑制赤子爱胜蚓的繁殖能力。在急性暴露中，高浓度的[C(8)mim]Br大于或等于 40mgkg(-1)人工土壤（干重）在暴露 3 和 7d 后抑制了 Na(+)-K(+)-ATPase 和 Mg(++)-ATPase 的活性。在慢性暴露 42d 后，暴露于大于或等于 5mg[C(8)mim]Brkg(-1)人工土壤（干重）的各组中两种 ATPase 的活性均受到抑制。这些结果表明，离子液体[C(8)mim]Br 的处理影响赤子爱胜蚓的生长、繁殖能力和 ATPase 活性。
