UM
Tetrachloroethylene, trichloroethylene, and chlorinated phenols induce toluene-o-xylene monooxygenase activity in Pseudomonas stutzeri OX1
Ryoo D.4; Shim H.4; Arenghi F.L.G.5; Barbieri P.5; Wood T.K.4
2001
Source PublicationApplied Microbiology and Biotechnology
ISSN01757598
Volume56Issue:3-4Pages:545-549
AbstractPseudomonas stutzeri OX1 naphthalene-oxidation activity is induced 3.0-fold by tetrachloroethylene (PCE) and 3.1-fold by trichloroethylene (TCE) at 100 μM. With the mutant P. stutzeri M1, which does not express toluene-o-xylene monooxygenase (ToMO, product of the tou operon), no naphthalene-oxidation activity induction by PCE and TCE was found; hence, PCE and TCE induce ToMO of P. stutzeri OX1. The chlorinated phenols 2-, 3-, and 4-chlorophenol induced ToMO expression 0.58-, 0.23- and 0.37-fold, respectively, compared to the direct inducer of the pathway, o-cresol. Using P. putida PaW340 (pPP4062, pFP3028), which has the tou promoter fused to the reporter catechol-2, 3-dioxygenase, and the regulator gene touR, it was determined that the tou promoter was induced directly 5.7-, 7.1-, and 5.1-fold for 2-, 3-, and 4-chlorophenol, respectively (compared to an 8.8-fold induction with o-cresol). In addition, it was found that TCE and PCE do not directly induce the tou pathway and that components other than the tou structural and regulatory genes are necessary for induction. Gas chromatography results also showed that 100 μM TCE induced its own degradation (8-9%) in 16 h in P. stutzeri OX1, and all of the stoichiometric chloride from the degraded TCE was detected in solution. © Springer-Verlag 2001.
DOI10.1007/s002530100675
URLView the original
Language英語
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Cited Times [WOS]:23   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Jeonju University
2.Hanyang University
3.Università degli Studi dell'Insubria
4.University of Connecticut
5.Università degli Studi di Milano
Recommended Citation
GB/T 7714
Ryoo D.,Shim H.,Arenghi F.L.G.,et al. Tetrachloroethylene, trichloroethylene, and chlorinated phenols induce toluene-o-xylene monooxygenase activity in Pseudomonas stutzeri OX1[J]. Applied Microbiology and Biotechnology,2001,56(3-4):545-549.
APA Ryoo D.,Shim H.,Arenghi F.L.G.,Barbieri P.,&Wood T.K..(2001).Tetrachloroethylene, trichloroethylene, and chlorinated phenols induce toluene-o-xylene monooxygenase activity in Pseudomonas stutzeri OX1.Applied Microbiology and Biotechnology,56(3-4),545-549.
MLA Ryoo D.,et al."Tetrachloroethylene, trichloroethylene, and chlorinated phenols induce toluene-o-xylene monooxygenase activity in Pseudomonas stutzeri OX1".Applied Microbiology and Biotechnology 56.3-4(2001):545-549.
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