长江科学院院报 ›› 2012, Vol. 29 ›› Issue (10): 28-32.DOI: 10.3969/j.issn.1001-5485.2012.10.006

• 水资源与环境 • 上一篇    下一篇

基于四尾栅藻毒性反应的Hg和DBP协同作用研究

黄 茁1，曹小欢1，刘宏芳2，秦 双2   

  1. 1.长江科学院 流域水环境研究所，武汉430010; 2.华中科技大学 化学与化工学院，武汉430074
  • 收稿日期:2011-07-15 修回日期:2011-11-08 出版日期:2012-10-01 发布日期:2012-10-18
  • 作者简介:黄茁（1970-），男，湖北武汉人，高级工程师，博士，长期从事水生态环境研究
  • 基金资助:

    水利部公益性行业科研专项资助项目（201001006）；人力资源和社会保障部留学人员科技活动项目（CKSC2010434/SH）；中央级公益性科研院所基本科研业务费项目（CKSF2011010/SH）

Synergistic Effect of Combined Mercury (Hg) and DiButyl Phthalate (DBP) on Scenedesmus quadricauda

HUANG Zhuo1, CAO Xiao-huan1, LIU Hong-fang2, QIN Shuang2   

  1. 1.Water Environment Department, Yangtze River Scientific Research Institute, Wuhan  430010, China;2.School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan  430074, China
  • Received:2011-07-15 Revised:2011-11-08 Online:2012-10-01 Published:2012-10-18

PDF

1818

摘要： 目前环境监测中多采用单一指标的监测方法，对污染物质共同作用产生的环境危害监测较少。以叶绿素a含量和光能转化效率为指标，研究Hg（汞)和DBP(邻苯二甲酸二丁酯）单一及联合胁迫下的毒性作用。结果表明：Hg, DBP单一作用及联合胁迫对四尾栅藻的叶绿素荧光参数均有抑制作用，随暴露浓度的增大，微藻叶绿素a含量和光能转化效率逐渐降低，显示出明显的剂量-效应关系；Hg和DBP联合胁迫时表现出明显的对四尾栅藻的协同作用。研究成果可为污染物综合毒性监测提供理论依据。

关键词: Hg, DBP, 四尾栅藻, 叶绿素a含量, 光能转化效率

Abstract:  In environmental pollution monitoring at present, methods considering only the single index rather than the combined action of pollutants are mostly used which cannot reflect the comprehensive toxicity of pollutants. Taking chlorophyll-a content and optical energy conversion efficiency as indicators, we analyzed the toxicity of combined mercury (Hg) and DiButyl phthalate (DBP) on Scenedesmus quadricauda. Results showed that the chlorophyll fluorescence parameters of Scenedesmus quadricauda were inhibited either by Hg samples, DBP samples, or by joint samples of Hg and DBP. The chlorophyll-a content and optical energy conversion efficiency decreased with the increase of toxicant concentration, showing an obvious dose-response relationship. A conspicuous synergistic effect of Hg-DBP was found on Scenedesmus quadricauda. The results could provide a theoretical basis for monitoring the comprehensive toxicity of pollutants in water. 

Key words: Hg, DBP, Scenedesmus quadricauda, chlorophyll-a content, optical energy conversion efficiency

中图分类号: 

*严禁使用本系统存储、处理、传输涉密信息*
本系统由北京玛格泰克科技发展有限公司设计开发 技术支持：support@magtech.com.cn