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Cold Shock Induction of the cspL Gene in Lactobacillus plantarum Involves Transcriptional Regulation

Sylviane Derzelle, Bernard Hallet, Thierry Ferain, Jean Delcour, and Pascal Hols^*

Institut des Sciences de la Vie/Unité de Génétique, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium

Received 21 February 2002/ Accepted 25 June 2002

Fragments of the cspL promoter region were fused to the gusA reporter and reintroduced into Lactobacillus plantarum cells, either on multicopy plasmids or through single-copy chromosomal integration. ß-Glucuronidase activity and primer extension data demonstrate that the cspL promoter is induced in response to cold shock and that multicopy constructs quench the induction of the resident cspL gene.

Present address: Génétique des génomes bactériens, Institut Pasteur, F-75724 Paris Cedex 15, France.

Present address: Euroscreen S. A., B-1070 Brussels, Belgium.

This article has been cited by other articles:

• Derzelle, S., Hallet, B., Ferain, T., Delcour, J., Hols, P. (2003). Improved Adaptation to Cold-Shock, Stationary-Phase, and Freezing Stresses in Lactobacillus plantarum Overproducing Cold-Shock Proteins. Appl. Environ. Microbiol. 69: 4285-4290 [Abstract] [Full Text]