| 不同磷浓度条件下三氯生对斜生栅藻的毒性影响研究 |
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| 引用本文： | 吴艳艳,蒋丽娟,肖琳.不同磷浓度条件下三氯生对斜生栅藻的毒性影响研究[J].安徽农业科学,2013(14):6412-6415. |
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| 作者姓名： | 吴艳艳 蒋丽娟 肖琳 |
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| 作者单位： | 南京大学环境学院,污染控制与资源化研究国家重点实验室,江苏南京210023 |
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| 摘 要： | 目的]研究不同磷浓度条件下,三氯生对斜生栅藻的毒性影响。方法]测定不同磷浓度条件(0、2.5、50.0 mg/L)不同浓度三氯生(50、200μg/L)对斜生栅藻生长、叶绿素荧光特性、生理生化指标的影响,从3个方面研究不同磷浓度条件下三氯生对斜生栅藻的毒性影响。结果]在3种磷浓度条件(0、2.5、50.0 mg/L)下,三氯生对斜生栅藻的生长抑制表现出剂量-效应关系,斜生栅藻叶绿素荧光特性指标Yield、Fv/F0、NPQ受到不同程度的影响。斜生栅藻抗氧化系统酶(SOD、CAT)及磷代谢相关酶(ACP、AKP)活性亦发生相应变化。结论]三氯生对斜生栅藻的毒性影响与环境中磷浓度变化有一定相关性。
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| 关 键 词： | 三氯生 毒性影响 斜生栅藻 |
Toxicity Effects of Triclosan on Scenedesmus obliqnus at Different Phosphorus Concentrations |
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| Institution: | WU Yan-yan (State Key Laboratory of Pollution Control and Resources Reuse, School of Environment, Nanjing University, Nanjing, Jiangsu 210023 ) |
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| Abstract: | Objective ] The research aimed to analyze the toxicity effects of triclosan to Scenedesmus obliqnus at different phosphorus concentra- tions. Method] Growth inhibition effect, chlorophyll fluorescence characteristics and relative enzyme activities were measured at different phos- phorus concentrations （0, 2.5, 50.0 mg/L） and triclosan concentrations （0, 50,200 μg/L）. Result] Under three phosphorus concentrations （0, 2.5, 50.0 mg/L）, growth inhibition effect of triclosan on Scenedesmus obliquus showed dose-effect relationship, chlorophyll fluorescence characteristics Yield,FJF0, NPQ of Scenedesmus obliqnus were affected to different extents. Activities of anti-oxidative enzymes （ SOD, CAT）, and phosphorus metabolism related enzymes （ACP, AKP） also changed accordingly. Conclusion ] Toxicity effect of triclosan on Scenedesmus obliquus is correlative with phosphorus concentration in the environment. |
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| Keywords: | Triclosan Toxicity effects Scenedesmus obliqnus |
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