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Applied and Environmental Microbiology, November 2004, p. 6897-6900, Vol. 70, No. 11
0099-2240/04/$08.00+0     DOI: 10.1128/AEM.70.11.6897-6900.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.

SHORT REPORT

Degradation of a Nonylphenol Single Isomer by Sphingomonas sp. Strain TTNP3 Leads to a Hydroxylation-Induced Migration Product

Department of Biology V ,¹ Department of Environmental Engineering (ISA), RWTH Aachen University,³ Institute of Hygiene and Environmental Health, University Hospital-RWTH Aachen, Aachen,⁴ Fraunhofer IME, Schmallenberg, Germany²

Received 16 April 2004/ Accepted 7 June 2004

ABSTRACT

Sphingomonas sp. strain TTNP3 degrades 4(3',5'-dimethyl-3'-heptyl)-phenol and unidentified metabolites that were described previously. The chromatographic analyses of the synthesized reference compound and the metabolites led to their identification as 2(3',5'-dimethyl-3'-heptyl)-1,4-benzenediol. This finding indicates that the nonylphenol metabolism of this bacterium involves unconventional degradation pathways where an NIH shift mechanism occurs.

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