生态与农村环境学报2012，Vol.28Issue(2)：203-208,6.
Cu2+对羽摇蚊幼虫(Chironomus plumosus)口器致畸作用和抗氧化酶活性的影响
Effect of Copper on Antioxidant Enzymes Activity and Mouthpart Deformity of Chironomus plumosus
摘要
Abstract
Acute toxicity of copper to larvae of Chironomus plumosus was studied by using the static-test method in the laboratory. The experiment was designed to have three levels of Cu2+ concentration, I. E. 0.005, 0.010 and 0.020 g ? L-1. Superoxide dismutase (SOD) , catalase (CAT) and glutathione S-transferase (GST) activities in the homogenate of tissues of the larvae were monitored after they were exposed to the substance for 24, 48, 72 and 96 h, separately. Results show that Cu2 + displayed significant effects on the activities of SOD and CAT, and such effects were significantly related to dosage of the substance. GST activity was induced after 72 h of exposure, and peaked after 96 h of exposure (P < 0. 01 ). The induction of mouthpart deformity and the developmental response with exposure to three concentrations (0. 005 , 0. 010 and 0. 020 g ? L-1 ) of copper for 7 days were investigated. It was found that teratogenesis of the larvae is significantly and positively related with Cu2+ concentration they are exposed to.关键词
Cu2+/羽摇蚊幼虫/抗氧化酶/口器/致畸Key words
Cu2 + / Chironomus plumosus/ antioxidant enzyme/ mouthpart/ terotagenesis分类
资源环境引用本文复制引用
李浩,王琴,邓金钗,覃剑晖,马徐发..Cu2+对羽摇蚊幼虫(Chironomus plumosus)口器致畸作用和抗氧化酶活性的影响[J].生态与农村环境学报,2012,28(2):203-208,6.基金项目
国家水体污染控制与治理科技重大专项(2009ZX07527-005) （2009ZX07527-005）
国家自然科学基金(40801206) （40801206）
