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Viability and virulence of experimentally stressed nonculturable Salmonella typhimurium
1Laboratoire Hydrobiologie, UMR CNRS-Université Montpellier II No. 5556, Université Montpellier II, F-34095 Montpellier cedex 5, France. acaro@email.unc.edu
Applied and Environmental Microbiology
|July 2, 1999
Abstract:
Maintenance of pathogenicity of viable but nonculturable Salmonella typhimurium cells experimentally stressed with UV-C and seawater, was investigated relative to the viability level of the cellular population. Pathogenicity, tested in a mouse model, was lost concomitantly with culturability, whereas cell viability remained undamaged, as determined by respiratory activity and cytoplasmic membrane and genomic integrities.