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Applied and Environmental Microbiology, March 2001, p. 1388-1391, Vol. 67, No. 3
0099-2240/01/$04.00+0   DOI: 10.1128/AEM.67.3.1388-1391.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.

Substrate Selectivity of a 3-Nitrophenol-Induced Metabolic System in Pseudomonas putida 2NP8 Transforming Nitroaromatic Compounds into Ammonia under Aerobic Conditions

Jian-Shen Zhao and Owen P. Ward*

Department of Biology, University of Waterloo, Waterloo, Ontario, Canada

Received 6 September 2000/Accepted 11 December 2000

The 3-nitrophenol-induced enzyme system in cells of Pseudomonas putida 2NP8 manifested a wide substrate range in transforming nitroaromatic compounds through to ammonia production. All of the 30 mono- or dinitroaromatic substrates except 4-nitrophenol, 2,4-dinitrophenol, 2,4,6-trinitrophenol, 3-nitroaniline, 2-nitrobenzoic acid, and 2-nitrofuran were quickly transformed. Ammonia production from most nitroaromatic substrates appeared to be stoichiometric.

* Corresponding author. Mailing address: Department of Biology, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1. Phone: (519) 8884567 ext. 2427; Fax: (519) 746-4989. E-mail: opward{at}sciborg.uwaterloo.ca.

Applied and Environmental Microbiology, March 2001, p. 1388-1391, Vol. 67, No. 3
0099-2240/01/$04.00+0   DOI: 10.1128/AEM.67.3.1388-1391.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.




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