Article
Mutational spectrum of the lacI gene in Escherichia coli K12 induced by low-energy ion beam.
Mutation research - 1 Dec 2006
Tang Ming Li, Wang Shun Chang, Wang Tao, Zhao Shi Guang, Wu Yao Jing, Wu Li Jun, Yu Zeng Liang
Abstract excerpt
The mutational spectrum of the genomic lacI gene induced by low-energy nitrogen ion irradiation in wild type Escherichia coli strain W3110 were compared with the spontaneous and the vacuum controls. The mutant frequency of irradiated group was dose-dependent and reached 26.3 x 10(-6) at dose of 31.2 x 10(14) ions/cm2, which was about 18-fold over the background (1.5 x 10(-6)) and 10-fold over the vacuum controls...
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