The Impact of Desiccation and Freezing on Gamma Radiation Survival in Microorganisms

Abstract

Gamma radiation and desiccation cause oxidative stress in microorganisms, mediated by reactive oxygen species (ROS) generated by abiotic and metabolic mechanisms. During irradiation, ROS are produced in cells by water radiolysis; during desiccation, by exposure to atmospheric oxygen and dysfunctional metabolic processes. Bacteria and yeasts that are radiation-resistant are typically also desiccation-resistant and share a great antioxidant capacity.

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Document Details

Document Type
Technical Report
Publication Date
Mar 19, 2020
Accession Number
AD1182706

Entities

People

  • William H Iv Horne

Organizations

  • Uniformed Services University of the Health Sciences

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Bacteria
  • Cell Membrane
  • Cell Physiological Processes
  • Cells
  • Cellular Structures
  • Chemical Synthesis
  • Chemistry
  • Cosmic Rays
  • Free Radicals
  • Gamma Rays
  • Genetics
  • Health Services
  • Metabolism
  • Microbiology
  • Microbiomes
  • Microorganisms
  • United States

Fields of Study

  • Environmental science

Readers

  • Cellular and Molecular Pathways of Apoptosis.
  • Microbial Pathology
  • Nuclear and Radiation Engineering.