Abstract
The effectiveness of heavy ions in inducing the SOS response in E. coli cells has been measured by means of the SOS-chromotest. The SOS induction potency of ionizing radiation increases with increasing LET, to 40–60 keV/μm, reaches a maximum and then decreases at greater LET values. We conclude that the SOS-inducing damages in the case of ionizing radiation could be DNA injuries of a ‘complex’ type, e.g., DNA double-strand breaks or some kind of heavily damaged single-strand lesions.
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Schedule a callMore From: Mutation Research - Fundamental and Molecular Mechanisms of Mutagenesis
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