| Literature DB >> 5803628 |
J J Licciardello, J T Nickerson, S A Goldblith, C A Shannon, W W Bishop.
Abstract
Cultures of Salmonella subjected to repeated cycles of gamma-irradiation and subculture developed radiation resistance sooner at a low cycling dose ( approximately 1% survival) compared to a high cycling dose ( approximately 0.001% survival). Radioresistant cells in a population of radiosensitive cells of Salmonella newport or S. typhimurium could be selected by the double-irradiation plate method. The frequency of radioresistant cells in a population of S. newport was found to be about 1 per 8.9 million. Radio-resistant cells obtained by cyclic irradiation and subculture were larger (plumper) than the parent strain and showed a marked pleomorphism.Entities:
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Year: 1969 PMID: 5803628 PMCID: PMC377877 DOI: 10.1128/am.18.1.24-30.1969
Source DB: PubMed Journal: Appl Microbiol ISSN: 0003-6919