微囊藻毒素-LR对大乳头水螅的急性毒性研究  

Study on the Acute Toxicity of Microsystin-LR on Hydra magnipapillata

作　　者：胡正宏[1] 李玉成[1] 郝家胜[2] 

机构地区：[1]安徽大学资源与环境工程学院,安徽合肥230601 [2]安徽师范大学生命科学学院,安徽芜湖241000

出　　处：《安徽农业科学》2011年第29期17937-17938,17941,共3页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金资助项目(40972092)

摘　　要：[目的]为探讨藻毒素对水生模式动物水螅的毒性效应。[方法]以大乳头水螅(Hydra magnipapillata)为试验材料,在不同浓度的MC-LR溶液处理下,观察其急性毒性效应。[结果]MC-LR对水螅24 h的半致死浓度(LC50)为12.158 mg/L,48 h的LC50为4.029 mg/L,72 h的LC50为1.799 mg/L。[结论]较低浓度的MC-LR溶液即可引起水螅的死亡,说明蓝藻水华产生的MC-LR对水螅等一些水生动物造成危害,甚至可致水螅等一些低等水生动物的死亡。该研究可为水体污染的检测、评价提供一定的参考依据。[Objective] The research aimed to evaluate the toxic effect of microcystin on hydroid（aquatic animal model）.[Method] Hydra magnipapillata was the test material.Under the different concentrations of MC-LR solution,its acute toxicity on Hydra magnipapillata was observed.[Result] The half lethal concentration（LC50） of MC-LR on Hydra magnipapillata at 24 h was 12.158 mg/L,4.029 mg/L at 48 h and 1.799 mg/L at 72 h.[Conclusion] Hydra magnipapillata would die when treated with the low concentration of MC-LR solution.It illustrated that MC-LR produced by cyanobacteria bloom caused the damage on some aquatic animals,and even some low-level aquatic animals died,such as Hydra magnipapillata and so on.The research provided some reference basis for the detection and assessment of water body pollution.

关 键 词：MC-LR 大乳头水螅 半致死浓度 

分 类 号：X131.2[环境科学与工程—环境科学]