Ecotoxicology

, Volume 18, Issue 6, pp 669–676

Genotoxicity of organic pollutants in source of drinking water on microalga Euglena gracilis

  • Mei Li
  • Changwei Hu
  • Xiangyu Gao
  • Yue Xu
  • Xin Qian
  • Murray T. Brown
  • Yibin Cui
Article

DOI: 10.1007/s10646-009-0343-0

Cite this article as:
Li, M., Hu, C., Gao, X. et al. Ecotoxicology (2009) 18: 669. doi:10.1007/s10646-009-0343-0

Abstract

The potential toxicities of organic pollutants in the drinking water source at Meiliang Bay of Lake Taihu were investigated by comet assay and antioxidant enzyme approach on microalgae Euglena gracilis. The organic extracts of the water samples could induce DNA damage on microalgae cells. Statistically significant differences (P < 0.05) were observed at groups of 0.3×, 3× and 10× concentrations compared with the control and a solvent control (DMSO). The organic extracts also affected antioxidant enzyme activity and induced lipid peroxidation in the microalga. In the high dose group, there was an obvious increase in SOD content (P < 0.05). The results suggest that the concentrated organics from water sample extracts have adversary effects on E. gracilis and could possibly damage the ecosystem.

Keywords

Drinking water sourceOrganic pollutantEuglena gracilisToxicityComet assay

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Mei Li
    • 1
  • Changwei Hu
    • 2
  • Xiangyu Gao
    • 1
  • Yue Xu
    • 1
  • Xin Qian
    • 1
  • Murray T. Brown
    • 3
  • Yibin Cui
    • 1
  1. 1.State Key Laboratory of Pollution Control and Resource Reuse and School of the EnvironmentNanjing UniversityNanjingChina
  2. 2.School of Life ScienceLinyi Normal UniversityLinyiChina
  3. 3.School of Biological SciencesUniversity of PlymouthPlymouthUK