Abstract:

In order to study the toxicity of copper ion to earthworms in the soils, the author reported the effects of copper ion (Cu2+) on activities of catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GSH- PX) from earthworms. The results indicated that CAT was activated partially by Cu2+ in the lower dose. The activity was decreased at first, then that was activated with time. SOD was decreased then was activated significantly. GSH-PX was fluctuation with the increasing of Cu2+ in the earthworm, but it was not shown the order all the exposure time. The activities of CAT, SOD and GSH-PX were not relative to the exposure doses of copper in the artificial soils.