欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (26): 266-269.

所属专题： 生物技术； 土壤重金属污染

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

铜离子污染胁迫对蚯蚓重要抗氧化物酶活性的影响

赵丽 邱江平 李凤   

  • 收稿日期:2011-03-02 修回日期:2011-03-29 出版日期:2011-10-15 发布日期:2011-10-15

Effect of Copper Ion on Activities of Important Antioxidant Enzymes from Earthworms

  • Received:2011-03-02 Revised:2011-03-29 Online:2011-10-15 Published:2011-10-15

PDF (PC)

958

摘要：

为了探究铜离子（Cu2+）对土壤生态环境中重要的生物蚯蚓的毒性作用，笔者研究了人工土壤中硫酸铜污染胁迫对安德爱胜蚓（Eisenia andrei）的过氧化氢酶（CAT）、超氧化物歧化酶（SOD）和谷胱甘肽过氧化物酶（GSH-PX）活性的影响。结果表明，低浓度的Cu2+对蚯蚓CAT酶有一定的激活作用，且酶活随着染毒时间，呈现先降低后升高的变化。随着Cu2+在蚯蚓体内的富集，对SOD呈现短暂抑制后，明显激活的作用。Cu2+会引起蚯蚓体内GSH-PX活性变化，但并不规律。3种抗氧化物酶活性变化程度与土壤中给予的Cu2+浓度没有剂量依赖性。

关键词: 马克思主义, 马克思主义, 农业, 合作社

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.