The branched-chain dodecylbenzene sulfonate degradation pathway of Pseudomonas aeruginosa W51D involves a novel route for degradation of the surfactant lateral alkyl chain

Appl Environ Microbiol. 1999 Aug;65(8):3730-4. doi: 10.1128/AEM.65.8.3730-3734.1999.


Pseudomonas aeruginosa W51D is able to grow by using branched-chain dodecylbenzene sulfonates (B-DBS) or the terpenic alcohol citronellol as a sole source of carbon. A mutant derived from this strain (W51M1) is unable to degrade citronellol but still grows on B-DBS, showing that the citronellol degradation route is not the main pathway involved in the degradation of the surfactant alkyl moiety. The structures of the main B-DBS isomers and of some intermediates were identified by gas chromatography-mass spectrometric analysis, and a possible catabolic route is proposed.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acyclic Monoterpenes
  • Benzene Derivatives / chemistry
  • Benzene Derivatives / metabolism*
  • Benzenesulfonates / chemistry
  • Benzenesulfonates / metabolism*
  • Biodegradation, Environmental
  • Gas Chromatography-Mass Spectrometry
  • Models, Chemical
  • Monoterpenes*
  • Mutation
  • Pseudomonas aeruginosa / genetics
  • Pseudomonas aeruginosa / growth & development
  • Pseudomonas aeruginosa / metabolism*
  • Surface-Active Agents / chemistry
  • Surface-Active Agents / metabolism*
  • Terpenes / metabolism


  • Acyclic Monoterpenes
  • Benzene Derivatives
  • Benzenesulfonates
  • Monoterpenes
  • Surface-Active Agents
  • Terpenes
  • dodecylbenzene
  • citronellol