Article
Effect of NaN3 on oxygen-dependent lethality of UV-A in Escherichia coli mutants lacking active oxygen-defence and DNA-repair systems.
Journal of radiation research - 1 Mar 1996
Yamada K, Ono T, Nishioka H
Abstract excerpt
Escherichia coli mutants which lack defence systems against such active oxygen forms as OxyR (delta oxyR), superoxide dismutase (SOD) (sodA and sodB) and catalase (katE and katG) are sensitive to UV-A lethality under aerobic conditions, whereas OxyR- and SOD-mutants have resistance under anaerobic conditions and in the presence of sodium azide (NaN3) during irradiation. UV-A induces lipid peroxidation in the...
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