title: [Excision repair does not protect Bacillus subtilis cells from inactivation by sunlight].
abstract: Exponentially growing Bacillus subtilis cells are highly sensitive to inactivating action of sunlight, the strain deficient in excision repair being every more sensitive than the uvr1 mutant. The inactivating effect is connected with the action of irradiation located in the left part of the spectrum (the whole UV region and some zones of the visible one). Increased sensitivity to sunlight disappeared when cells were exposed to sunlight in a liquid medium with casaminoacids (2 g/l). The inactivating effect was probably of photodynamic nature and was caused either by DNA lesions that were not removed by excision repair or by the damage which arose not in DNA.
authors.forename: O V
authors.initials: OV
authors.lastname: Lotareva
authors.forename: V D
authors.initials: VD
authors.lastname: Filippov
mesh_terms: D001412:Bacillus subtilis / Q000235:genetics* / Q000528:radiation effects; D004260:DNA Repair / Q000235:genetics*; D013472:Sunlight / Q000009:adverse effects*; D014466:Ultraviolet Rays
vernacular_title: Ekstsizionnaia reparatsiia ne zashchishchaet kletki Bacillus subtilis ot inaktivatsii solnechnym svetom.