Trichloroethylene removal and oxidation toxicity mediated by toluene dioxygenase of Pseudomonas putida
1994
Heald, S. | Jenkins, R.O.
Whole cells of Pseudomonas putida containing toluene dioxygenase were able to remove all detectable trichloroethylene (TCE) from assay mixtures. The capacity of cells to remove TCE was 77 micromolar/mg of protein with an initial rate of removal of 5.2 nmol/min/mg of protein. TCE oxidation resulted in a decrease in the growth rate of cultures and caused rapid cell death. Addition of dithiothreitol to assay mixtures increased the TCE removal capacity of cells by up to 67% but did not prevent TCE-mediated cell death. TCE induced toluene degradation by whole cells to a rate approximately 40% of that induced by toluene itself.
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