砷与农药草甘膦、敌敌畏对秀丽隐杆线虫的联合毒性  

Joint Toxicity of Arsenic, Glyphosate and Dichlorvos to C. elegans

作　　者：王云彪[1] 李润琴[2] 邓茗芩[3] 李铸衡[3] 徐镜波[3] 

机构地区：[1]中国科学院东北地理与农业生态研究所湿地生态与环境重点实验室,长春130102 [2]吉林省电力科学研究院有限公司,长春130021 [3]东北师范大学环境科学与工程系,长春130024

出　　处：《生态毒理学报》2013年第2期262-267,共6页Asian Journal of Ecotoxicology

基　　金：国家自然科学基金(41001339,41271485);吉林省科技发展计划项目(201201004);东北师范大学国家环境保护湿地生态与植被恢复重点实验室开放基金课题

摘　　要：农田常遭受砷和农药污染,这2种污染会产生联合毒性,影响生物体健康。利用野生型秀丽隐杆线虫进行砷、草甘膦和敌敌畏的24h单一毒性和联合毒性实验。结果表明,砷、草甘膦和敌敌畏对秀丽隐杆线虫24h-LC50分别为130.5mg·L-1、18.5mg·L-1、3.3μL·L-1;通过等效毒性相加法实验,发现砷与草甘膦对秀丽隐杆线虫的联合毒性为协同作用,砷与敌敌畏对秀丽隐杆线虫的联合毒性为拮抗作用。Farmland were often polluted by arsenic and pesticide. Arsenic and pesticide pollutions have the joint toxicity to bioactivities. In this work, wild-typed Caenorhabditis elegans were used to investigate 24 h acute toxicities and joint toxicity of arsenic, glyphosate and dichlorvos. Results showed that the 24 h-LC50 for arsenic, glyphosate and dichlorvos to C. elegans were 130.5 mg·L-1, 18.5 mg·L-1and 3.3 μL·L-1, respectively. Results of equivalent toxicity design indicated that the joint toxicity of arsenic and glyphosate on C. elegans followed synergic, while the joint toxicity of arsenic and dichlorvos on C. elegans showed to be antagonistic.

关 键 词：砷 农药 线虫 联合毒性 交互作用 

分 类 号：X171.5[环境科学与工程—环境科学]