Superoxide dismutase and media dependence of far-UV radiation resistance in thiol-treated cells.


Pretreatment of wild-type Escherichia coli K12 cells with dithiothreitol (DTT) induces far-UV radiation resistance after the thiol is removed (Claycamp 1988). The present study shows that a 1 h treatment of cells with DTT in minimal medium followed by a 0.5 h incubation in buffer (37 degrees C) results in a dose reduction factor (DRF) calculated at F37 of 1… (More)


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