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Anaerobic benzene oxidation coupled to nitrate reduction in pure culture by two strains of Dechloromonas

Author

Listed:
  • John D. Coates

    (Southern Illinois University)

  • Romy Chakraborty

    (Southern Illinois University)

  • Joseph G. Lack

    (Southern Illinois University)

  • Susan M. O'Connor

    (Southern Illinois University)

  • Kimberly A. Cole

    (Southern Illinois University)

  • Kelly S. Bender

    (Southern Illinois University)

  • Laurie A. Achenbach

    (Southern Illinois University)

Abstract

Benzene contamination is a significant problem. It is used in a wide range of manufacturing processes and is a primary component of petroleum-based fuels. Benzene is a hydrocarbon that is soluble, mobile, toxic and stable, especially in ground and surface waters. It is poorly biodegraded in the absence of oxygen. However, anaerobic benzene biodegradation has been documented under various conditions. Although benzene biomineralization has been demonstrated with nitrate1, Fe(III)2,3,4,5, sulphate6,7 or CO28,9 as alternative electron acceptors, these studies were based on sediments or microbial enrichments. Until now there were no organisms in pure culture that degraded benzene anaerobically. Here we report two Dechloromonas strains, RCB and JJ, that can completely mineralize various mono-aromatic compounds including benzene to CO2 in the absence of O2 with nitrate as the electron acceptor. This is the first example, to our knowledge, of an organism of any type that can oxidize benzene anaerobically, and we demonstrate the potential applicability of these organisms to the treatment of contaminated environments.

Suggested Citation

  • John D. Coates & Romy Chakraborty & Joseph G. Lack & Susan M. O'Connor & Kimberly A. Cole & Kelly S. Bender & Laurie A. Achenbach, 2001. "Anaerobic benzene oxidation coupled to nitrate reduction in pure culture by two strains of Dechloromonas," Nature, Nature, vol. 411(6841), pages 1039-1043, June.
    • Handle: RePEc:nat:nature:v:411:y:2001:i:6841:d:10.1038_35082545
    DOI: 10.1038/35082545
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    Cited by:

    1. Tang Liu & Shufeng Liu & Maosheng Zheng & Qian Chen & Jinren Ni, 2016. "Performance Assessment of Full-Scale Wastewater Treatment Plants Based on Seasonal Variability of Microbial Communities via High-Throughput Sequencing," PLOS ONE, Public Library of Science, vol. 11(4), pages 1-15, April.
    2. Wen Jia & Liuyan Yang, 2021. "Community Composition and Spatial Distribution of N-Removing Microorganisms Optimized by Fe-Modified Biochar in a Constructed Wetland," IJERPH, MDPI, vol. 18(6), pages 1-20, March.
    3. Liron Friedman & Kartik Chandran & Dror Avisar & Edris Taher & Amanda Kirchmaier-Hurpia & Hadas Mamane, 2022. "Accelerating Microbial Activity of Soil Aquifer Treatment by Hydrogen Peroxide," Energies, MDPI, vol. 15(11), pages 1-14, May.

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