Biodegradation

, Volume 21, Issue 1, pp 97–105

Atrazine degradation by a simple consortium of Klebsiella sp. A1 and Comamonas sp. A2 in nitrogen enriched medium

Authors

  • Chunyu Yang
    • State Key Laboratory of Microbial TechnologyShandong University
  • Yang Li
    • State Key Laboratory of Microbial TechnologyShandong University
  • Kun Zhang
    • State Key Laboratory of Microbial TechnologyShandong University
  • Xia Wang
    • State Key Laboratory of Microbial TechnologyShandong University
  • Cuiqing Ma
    • State Key Laboratory of Microbial TechnologyShandong University
  • Hongzhi Tang
    • MOE Key Laboratory of Microbial Metabolism, School of Life Sciences and BiotechnologyShanghai Jiao Tong University
    • State Key Laboratory of Microbial TechnologyShandong University
    • MOE Key Laboratory of Microbial Metabolism, School of Life Sciences and BiotechnologyShanghai Jiao Tong University
Original Paper

DOI: 10.1007/s10532-009-9284-9

Cite this article as:
Yang, C., Li, Y., Zhang, K. et al. Biodegradation (2010) 21: 97. doi:10.1007/s10532-009-9284-9

Abstract

A simple consortium consisted of two members of Klebsiella sp. A1 and Comamonas sp. A2 was isolated from the sewage of a pesticide mill in China. One member of Klebsiella sp. A1 is a novel strain that could use atrazine as the sole carbon and nitrogen source. The consortium showed high atrazine-mineralizing efficiency and about 83.3% of 5 g l−1 atrazine could be mineralized after 24 h degradation. Contrary to many other reported microorganisms, the consortium was insensitive to some nitrogenous fertilizers commonly used, not only in presence of 200 mg l−1 atrazine but also in 5 g l−1 atrazine mediums. After 24 h incubation, 200 mg l−1 atrazine was completely mineralized despite of the presence of urea, (NH4)2CO3 and (NH4)2HPO4 in the medium. Very minor influence was observed when NH4Cl was added as additional nitrogen source. Advantages of the simple consortium, high mineralizing efficiency and insensitivity to most of exogenous nitrogen sources, all suggested application potential of the consortium for the bioremediation of atrazine-contaminated soils and waters.

Keywords

AtrazineBioremediationConsortiumKlebsiellaNitrogen insensitivity

Copyright information

© Springer Science+Business Media B.V. 2009