title: In vivo production of DNA single-strand breaks by photodynamic action.
mesh_terms: D002499:Centrifugation, Density Gradient; D003470:Culture Media; D004260:DNA Repair; D004269:DNA, Bacterial / Q000378:metabolism* / Q000528:radiation effects; D008027:Light; D008751:Methylene Blue / Q000494:pharmacology*; D009690:Nucleic Acid Conformation; D010777:Photochemistry; D011511:Proteus / Q000378:metabolism*; D011513:Proteus mirabilis / Q000187:drug effects / Q000378:metabolism / Q000528:radiation effects
chemical_list: D003470:Culture Media; D004269:DNA, Bacterial; D008751:Methylene Blue