Catalase Activity, Sensitivity to Hydrogen Peroxide, and Radiation Response in the Genus Escherichia
In a group of three closely related E. coli strains there is no absolute correlation between catalase activity and radiation sensitivity. When these strains are made more resistant to ionizing radiation and H 2O2 by physiological means, catalase activity is actually diminished. There is an excellent correlation between sensitivity to H2O2. Possible explanations for the inability of catalase to protect cells against H2O2 damage are discussed. Data obtained with a fourth E. coli strain that can be grown as a catalasepositive or -negative organism support these conclusions.
- Research Organization:
- Oak Ridge National Lab., Tenn.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-029043
- OSTI ID:
- 4843116
- Journal Information:
- Radiation Research, Journal Name: Radiation Research Journal Issue: 3 Vol. 15; ISSN 0033-7587
- Publisher:
- Radiation Research Society
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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