AEM
Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrowReprints and Permissions
Right arrow Copyright Information
Right arrow Books from ASM Press
Right arrow MicrobeWorld
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Guillier, L.
Right arrow Articles by Augustin, J.-C.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Guillier, L.
Right arrow Articles by Augustin, J.-C.
Agricola
Right arrow Articles by Guillier, L.
Right arrow Articles by Augustin, J.-C.

 Previous Article  |  Next Article 

Applied and Environmental Microbiology, June 2005, p. 2940-2948, Vol. 71, No. 6
0099-2240/05/$08.00+0     doi:10.1128/AEM.71.6.2940-2948.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

Influence of Stress on Individual Lag Time Distributions of Listeria monocytogenes

L. Guillier,1,2* P. Pardon,1 and J.-C. Augustin1

Unité Mixte de Recherche ENVA-INRA RISQUAL, Ecole Nationale Vétérinaire d'Alfort, 7 avenue du Général de Gaulle, F-94704 Maisons-Alfort, France,1 Arilait Recherches, 42 avenue de ChÂteaudun, F-75314 Paris, France2

Received 8 October 2004/ Accepted 4 January 2005

The effects of nine common food industry stresses on the times to the turbidity (Td) distribution of Listeria monocytogenes were determined. It was established that the main source of the variability of Td for stressed cells was the variability of individual lag times. The distributions of Td revealed that there was a noticeable difference in response to the stresses encountered by the L. monocytogenes cells. The applied stresses led to significant changes of the shape, the mean, and the variance of the distributions. The variance of Td of wells inoculated with single cells issued from a culture in the exponential growth phase was multiplied by at least 6 and up to 355 for wells inoculated with stressed cells. These results suggest stress-induced variability may be important in determining the reliability of predictive microbiological models.

* Corresponding author. Mailing address: Unité Mixte de Recherche ENVA-INRA RISQUAL, Ecole Nationale Vétérinaire d'Alfort, 7 avenue du Général de Gaulle, F-94704 Maisons-Alfort, France. Phone: 33 0 143 967043. Fax: 33 0 143 967121. E-mail: lguillier{at}vet-alfort.fr.

Applied and Environmental Microbiology, June 2005, p. 2940-2948, Vol. 71, No. 6
0099-2240/05/$08.00+0     doi:10.1128/AEM.71.6.2940-2948.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:



Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
J. Bacteriol. Microbiol. Mol. Biol. Rev. Eukaryot. Cell All ASM Journals

Copyright © 2005 by the American Society for Microbiology. All rights reserved.