Development of radiation resistance in Salmonella cultures.

Applied microbiology ·Vol. 18 ·No. 1 ·1969-07-00 ·Pages 24-30

Licciardello JJ, Nickerson JT, Goldblith SA, Shannon CA, Bishop WW

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.

MeSH Terms

Methods Microscopy, Electron Mutation Radiation Effects Radiation Genetics Salmonella/radiation effects Selection, Genetic

Authors & Affiliations

5 authors, click to expand affiliations / ORCID

Licciardello J J

Nickerson J T

Goldblith S A

Shannon C A

Bishop W W

References (14)

14 references, click to expand

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Article Info

Journal

Applied microbiology

Abbr.

Appl Microbiol

ISSN

0003-6919

DOI

10.1128/am.18.1.24-30.1969

Published

1969-07-00

Pages

24-30

Language

English

Region

United States

NLM ID

7605802

PMCID

PMC377877

Subset

External Links

PubMed source DOI: 10.1128/am.18.1.24-30.1969 PMC Full Text

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Development of radiation resistance in Salmonella cultures.

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