Archives of Microbiology

, Volume 154, Issue 4, pp 336–341 | Cite as

Isolation and characterization of a bacterium that mineralizes toluene in the absence of molecular oxygen

  • J. Dolfing
  • J. Zeyer
  • P. Binder-Eicher
  • R. P. Schwarzenbach
Original Papers


A bacterium tentatively identified as a Pseudomonas sp. was isolated from a laboratory aquifer column in which toluene was degraded under denitrifying conditions. The organism mineralized toluene in pure culture in the absence of molecular oxygen. In carbon balance studies using [ring-UL-14C]toluene, more than 50% of the radioactivity was recovered as 14CO2. Nitrate and nitrous oxide served as electron acceptors for toluene mineralization. The organism was also able to degrade m-xylene, benzoate, benzaldehyde, p-cresol, p-hydroxybenzaldehyde, p-hydroxybenzoate and cyclohexanecarboxylic acid in the absence of molecular oxygen.

Key words

Pseudomonas sp. Toluene Xylene Dimethylbenzene Aromatic compounds Denitrification Nitrate reduction Anaerobic degradation 


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Copyright information

© Springer-Verlag 1990

Authors and Affiliations

  • J. Dolfing
    • 1
  • J. Zeyer
    • 1
  • P. Binder-Eicher
    • 1
  • R. P. Schwarzenbach
    • 1
  1. 1.Swiss Federal Institute for Water Resources and Water Pollution Control (EAWAG/ETH)KastanienbaumSwitzerland

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