除草剂对3种绿藻的毒性测试研究  

Toxicity test of herbicide for three green algaes

作　　者：叶丹[1] 陈洁[1] 袁琳[1] 史媛[2] 

机构地区：[1]长江流域水资源保护局长江流域水环境监测中心,湖北武汉430010 [2]武汉理工大学资源与环境科学技术学院,湖北武汉430070

出　　处：《人民长江》2014年第18期82-86,共5页Yangtze River

摘　　要：为给利用藻类作为指示生物开展除草剂的监测提供理论依据,选用3种绿藻(斜生栅藻、蛋白核小球藻和羊角月牙藻)为对象,研究其在3种典型除草剂(阿特拉津、敌草隆和西玛津)的胁迫下藻类叶绿素荧光参数的变化规律,进而评价参数的敏感性,探讨不同藻类对不同毒性物质的响应差异性。研究结果表明,在不同毒物浓度下,藻类生长受到不同程度抑制,其耐受性也不同;羊角月牙藻对除草剂比较敏感,可选择该藻类作为监测3种典型除草剂的指示生物。In order to provide theoretical guidance for herbicide monitoring by algae, three kinds of algaes, Scenedesmus obliquus, Chlorella pyrenoidosa, Selenastrum capricornutum, are selected as research objects, and their Chlorophyll fluorescence variation law under stress of three typical herbicides are studied for evaluating the sensitivity of the parameters, and the response differences of three kinds algaes to the toxicity was discussed. The results show that the algaes are inhibited in different toxicities with various tolerance capacities under different toxicity concentrations; the Selenastrum capricornutum has higher sensitivity to the herbicide, which could be adopted as bio-indicator for monitoring.

关 键 词：除草剂 毒性 叶绿素荧光 指示生物 绿藻 

分 类 号：X52[环境科学与工程—环境工程]