Malathion Degradation by Trichoderma viride and a Pseudomonas Species

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Science  09 Sep 1966:
Vol. 153, Issue 3741, pp. 1278-1280
DOI: 10.1126/science.153.3741.1278


Malathion was found to be metabolized quickly by a soil fungus, Trichoderma viride, and a bacterium, Pseudomonas sp., which were originally found in soils from northern Ohio that had been sprayed heavily with insecticides. Results of a survey of the breakdown capabilities of 16 variants of T. viride revealed that certain colonies from this species had a very marked ability to breakdown malathion through the action of a carboxylesterase(s). The enzymes can be made soluble by preparing the acetone powder suspension.