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Applied Biochemistry and Biotechnology

, Volume 166, Issue 4, pp 987–996 | Cite as

A Fungus Capable of Degrading Microcystin-LR in the Algal Culture of Microcystis aeruginosa PCC7806

  • Yong Jia
  • Jingjing Du
  • Fuqiang Song
  • Guiying Zhao
  • Xingjun TianEmail author
Article

Abstract

Microcystins (MCs) are a family of natural toxins produced by cyanobacteria (blue-green algae). Microbial degradation is considered an efficient method for eliminating cyanobacteria and MCs in environmental conditions. This study examines the ability of Trichaptum abietinum 1302BG, a white rot fungus, to degrade microcystin-LR in the harmful algal culture of Microcystis aeruginosa PCC7806. Results showed that microcystin-LR could not be detected by high-performance liquid chromatography after 12 h in algal culture incubated with the fungus. There were also high activities of catalase and peroxidase in algal culture incubated with the fungus. However, similar to the control, they decreased to normal levels after 72 h. Meanwhile, the micronucleus test in the toxicity studies revealed that the degraded algal culture had low toxicity.

Keywords

Cyanobacteria Trichaptum abietinum 1302BG Microcystin-LR Micronucleus 

Notes

Acknowledgments

This work was financial supported by Project of National Basic Research Program of China (2008CB418004) and National Science Foundation of China (30870419).

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Yong Jia
    • 2
  • Jingjing Du
    • 1
  • Fuqiang Song
    • 3
  • Guiying Zhao
    • 1
  • Xingjun Tian
    • 1
    Email author
  1. 1.School of Life ScienceNanjing UniversityNanjingPeople’s Republic of China
  2. 2.School of Life ScienceNanjing Normal UniversityNanjingPeople’s Republic of China
  3. 3.School of Life ScienceHeilongjiang UniversityHarbinPeople’s Republic of China

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