四尾栅藻对壬基酚胁迫的响应研究  

Study on Scenedesmus quadricanda Responses to Nonylphenol Stress

作　　者：刘莉莉[1] 王成[2] 

机构地区：[1]安徽大学江淮学院,安徽合肥230031 [2]安徽农业大学,安徽合肥230036

出　　处：《安徽农学通报》2015年第12期24-27,共4页Anhui Agricultural Science Bulletin

基　　金：安徽省高等学校省级自然科学研究项目(KJ2013B013)

摘　　要：选取水体中广泛存在的四尾栅藻为代表,研究其在营养盐限制条件下对壬基酚胁迫的响应。实验设置3个暴露组(0.041、0.103、0.205mg·L-1)和1个对照组(0mg·L-1),测定了96h内四尾栅藻细胞密度、胞外多糖合成、最大光能转化效率(Fv/Fm)以及群体形态等变化。结果显示,随着NP暴露浓度的增加,四尾栅藻的密度、Fv/Fm等指标的下降幅度更加显著;0.041mg·L-1NP暴露对四尾栅藻的生长、叶绿素a含量以及Fv/Fm等均有促进作用,说明四尾栅藻在NP暴露下能够产生毒物刺激效应现象。In order to study the physiological effects of NP on the fresh algae, Scenedesmus quadricanda was exposed to NP of three concentrations （0.041,0.103,0.205mg·L^-1） and a control （0mg· L^-1） . Its cell number, maximum light conversion efficiency （Fv/Fm） . extracellular polysaccharide and cell morphology were measured in 96h exposure. Results show that the cell number and Fv/Fm of microalgae were increased in 0.041mg · L^-1 NP , with the increasing of concentrations of NP, the cell number and Fv/Fm of microalgae were decreased, the growth of Scenedesmus quadricanda was inhibited.

关 键 词：壬基酚 四尾栅藻 胁迫 毒性效应 

分 类 号：X592[环境科学与工程—环境工程]