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Role of Lipid Peroxidation in Radiation Damage and Repair of Cell Membranes in the Thermophilic Bacterium Thermus Thermophilus

  • S. Suzuki

Abstract

The thermophilic bacterium Thermus thermophilus HB-8, which does not contain unsaturated fatty acids, lost its ability to take up extracellular K+ in a temperature-dependent manner after its exposure to either UV radiation or cobalt-60 gamma rays. The dose response of HB-8 cells in terms of K+ permeability was not significantly different from that of an unsaturated fatty acid-requiring auxotroph of E. coli UFAts grown with linoleate. These results indicate that a radiation-induced change in K+ permeability of cell membranes is not attributable to lipid peroxidation.

Keywords

Lipid Peroxidation Polyunsaturated Fatty Acid Unsaturated Fatty Acid Radiation Damage Membrane Damage 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • S. Suzuki
    • 1
  1. 1.Radiology Unit Institute of Medical ScienceUniversity of TokyoTokyo 108Japan

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