Near-ultraviolet illumination inhibits the liquid holding recovery in Escherichia coli B
Braz. j. med. biol. res
;
23(12): 1263-6, 1990. ilus, tab
Artigo
em Inglês
| LILACS
| ID: lil-103654
ABSTRACT
Liquid holing recovery (LHR) consist of an increase in the survival of UV-irradiated cells when they ar held under non-nutrient conditions before palting. In this study we investigated in E. coli B cells the effect of the growth inhibition induced by near UV (365 nm) illumination (growth delay, GD) before irradiation with UV-254 nm on the amplitude of LHR and the induction of an SOS function (filamentation) during the liquid holding period. Our results demonstrated that pre-illumination with near-UV inhibitis LHR and the induction of filamentation when the cells are incubated in nutrient medium. Moreover, this inhibition is due to GD, an effect caused by a photoproduct in the E. coli t-RNA, the 8-13 link
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Índice:
LILACS (Américas)
Assunto principal:
Raios Ultravioleta
/
Sobrevivência Celular
/
Escherichia coli
Idioma:
Inglês
Revista:
Braz. j. med. biol. res
Assunto da revista:
Biologia
/
Medicina
Ano de publicação:
1990
Tipo de documento:
Artigo
/
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