title: The contribution of endogenous and exogenous effects to radiation-induced damage in the bacterial spore.
abstract: Radical scavengers such as polyethylene glycol 400 and 4000 and bovine albumin have been used to define the contribution of exogenous and endogenous effects to the gamma-radiation-induced damage in aqueous buffered suspensions of Bacillus pumilus spores. The results indicate that this damage in the bacterial spore is predominantly endogenous both in the presence of 1 atmosphere of oxygen, and in anoxia.
mesh_terms: D000818:Animals; D001407:Bacillus / Q000187:drug effects / Q000528:radiation effects*; D005720:Gamma Rays; D010100:Oxygen; D011092:Polyethylene Glycols / Q000494:pharmacology*; D011836:Radiation Tolerance; D012710:Serum Albumin, Bovine / Q000494:pharmacology*; D013171:Spores, Bacterial / Q000187:drug effects / Q000528:radiation effects
chemical_list: D012710:Serum Albumin, Bovine; D011092:Polyethylene Glycols; D010100:Oxygen