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Appl. Environ. Microbiol., Dec 1997, 4948-4951, Vol 63, No. 12
Copyright © 1997, American Society for Microbiology

Comparative study of the toxic actions of 2,2-bis(p-chlorophenyl)-1,1,1- trichloroethane and 2,2-bis(p-chlorophenyl)-1,1-dichloroethylene on the growth and respiratory activity of a microorganism used as a model

MM Donato, AS Jurado, MC Antunes-Madeira and VM Madeira
Centro de Neurociencias, Universidade de Coimbra, Portugal.

A strain of Bacillus stearothermophilus was used as a model for a comparative study of the toxic effect of 2,2-bis(p-chlorophenyl)-1,1,1- trichloroethane and 2,2-bis(p-chlorophenyl)-1,1-dichloroethylene. Bacterial growth, the O2 consumption rate, and respiration-related enzymatic activities provided quantitative data in agreement with results reported for other systems. The use of this bacterium for screening for chemical toxicity is discussed.

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