1.
Radiat Res
; 103(3): 410-8, 1985 Sep.
Artigo
em Inglês
| MEDLINE
| ID: mdl-3898204
RESUMO
The ability of the R46 R factor and its derivative pKM101 to modify sensitivity to 60Co gamma radiation was studied. In Escherichia coli K12 both plasmids enhanced bacterial survival after 60Co gamma irradiation. This effect was dependent on recA+ genotype but not on recB+, recB+ recC+, and recF+ genotypes. 5-Fluorouracil eliminated the R46 R factor from the parent and its rec- mutant strains. These strains lost not only the antibiotic resistance coded for R46 R factor but their radioresistance as well.