Ultraviolet light inactivation and photoreactivation of AS-1 cyanophage in Anacystis nidulans.
نویسنده
چکیده
Black light effected photorecovery of AS-1 cyanophage and wild-type cells. However, only partial photoreactivation of AS-1 was observed in a partially photoreactivable mutant of Anacystis nidulans.
منابع مشابه
Isolation and characterization of ultraviolet light-sensitive mutants of the blue-green alga Anacystis nidulans.
Three independently isolated ultraviolet light-sensitive (uvs) mutants of Anacystis nidulans were characterized. Strain uvs-1 was most sensitive to UV in the absence of photoreactivation. Pretreatment with caffeine suppressed the dark-survival curve of strain uvs-1, indicating the presence of excision enzymes involved in dark repair. Under "black" and "white" illumination, strain uvs-1 displays...
متن کاملAnacystis nidulans
Three independently isolated ultraviolet light-sensitive (uvs) mutants of Anacystis nidulans were characterized. Strain uvs-1 was most sensitive to UV in the absence of photoreactivation. Pretreatment with caffeine suppressed the dark-survival curve of strain uvs-1, indicating the presence of excision enzymes involved in dark repair. Under "black" and "white" illumination, strain uvs-1 displays...
متن کاملUltraviolet light inactivation and photoreactivation in the mycobacteria.
The kinetics of inactivation of mycobacteria by ultraviolet light were investigated. Mycobacterium tuberculosis and M. marinum were shown to be capable of photo-reactivation.
متن کاملRoles of FAD and 8-hydroxy-5-deazaflavin chromophores in photoreactivation by Anacystis nidulans DNA photolyase.
DNA photolyase from the cyanobacterium Anacystis nidulans contains two chromophores, flavin adenine dinucleotide (FADH2) and 8-hydroxy-5-deazaflavin (8-HDF) (Eker, A. P. M., Kooiman, P., Hessels, J. K. C., and Yasui, A. (1990) J. Biol. Chem. 265, 8009-8015). While evidence exists that the flavin chromophore (in FADH2 form) can catalyze photorepair directly and that the 8-HDF chromophore is the ...
متن کاملEvidence for the Genetic Control of Photoreactivation1
HOTOREACTIVATION is the reversal by near-ultraviolet or visible light of 'ultraviolet radiation damage to biological systems ( JAGGER 1958). This phenomenon has been demonstrated in the intact cell in a spectrum of organisms (extending from bacteria to mammals) (JAGGER 1958) and in vitro with ultravioletinactivated transforming factor (deoxyribose nucleic acid) of Hemophilus in@uenzae ( GOODGAL...
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ورودعنوان ژورنال:
- Journal of bacteriology
دوره 126 1 شماره
صفحات -
تاریخ انتشار 1976