title: Dictyostelium discoideum: a gamma-ray resistant organism.
abstract: The vegetative cells of the slime mold Dictyostelium discoideum are extremely resistant to cobalt-60 gamma rays. The survival curve has a shoulder at low doses and a 10 percent survival dose of 300 kilorads in air. Dose fractionation experiments indicate that repair of sublethal damage is an important factor in this resistance.
mesh_terms: D003036:Cobalt Isotopes; D004926:Escherichia coli; D009235:Myxomycetes / Q000254:growth & development / Q000378:metabolism / Q000528:radiation effects*; D011830:Radiation Effects
chemical_list: D003036:Cobalt Isotopes