量研学術機関リポジトリ「QST-Repository」は、国立研究開発法人 量子科学技術研究開発機構に所属する職員等が生み出した学術成果（学会誌発表論文、学会発表、研究開発報告書、特許等）を集積しインターネット上で広く公開するサービスです。 Welcome to QST-Repository where we accumulates and discloses the academic research results(Journal Publications, Conference presentation, Research and Development Report, Patent, etc.) of the members of National Institutes for Quantum Science and Technology.
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Bacillus subtilis is known as Gram-positive, rod-shape, aerobic, spore-forming bacterium that is naturally found in soil, the spore is resistant to environmental factors such as heat, desiccation, chemical and radiation. In this work, we utilized ion beams to check mutation induction for rifampicin to characterize the mutation by high LET ion beam irradiation to B. subtilis spores. In 4He2+, 60Co, 40Ar13+ irradiation, shown the lower lethal effect to B. subtilis spores, more RifR mutant colonies were obtained compared to irradiation of the higher lethal effected ion beams (12C5+ and 20Ne8+). The trend of the mutagenic effect with the appearance of RifR mutants did not show the similar trend as the lethal effect.
Effect of Ion Beams and Gamma Rays Irradiation on Mutation Induction in Bacillus subtilis Spores
