title: [Photogeneration of the superoxide anion oxygen radical and its role in the inactivation of yeast cells by long-wave UV light].
abstract: Long-wave (320-400 nm) UV-induced oxygen superoxide anion radical (O2-) formation was found in yeast cells. This radical plays an important part in initiation of photodestruction reactions in DNA which serves as a main target of UV irradiation in yeast. The observed cell photoinactivation spectrum at the wavelengths 320-400 nm suggests that NADH can serve as an endogenous sensitizer of O2- formation.
authors.forename: M E
authors.initials: ME
authors.lastname: Pospelov
authors.forename: G Ia
authors.initials: GIa
authors.lastname: Fraĭkin
mesh_terms: D002175:Candida / Q000528:radiation effects*; D004271:DNA, Fungal / Q000528:radiation effects; D004307:Dose-Response Relationship, Radiation; D004578:Electron Spin Resonance Spectroscopy; D005609:Free Radicals; D009154:Mutation; D012441:Saccharomyces cerevisiae / Q000528:radiation effects*; D013481:Superoxides / Q000528:radiation effects*; D014466:Ultraviolet Rays
chemical_list: D004271:DNA, Fungal; D005609:Free Radicals; D013481:Superoxides
vernacular_title: Fotogeneratsiia superoksidnogo anion-radikala kisloroda i ego rol' v inaktivatsii kletok drozhzheĭ dlinnovolnovym UF-svetom.