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Improved adaptation to cold-shock, stationary-phase, and freezing stresses in Lactobacillus plantarum overproducing cold-shock proteins.

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Derzelle, Sylviane Hallet, Bernard [UCL] Ferain, Thierry Delcour, Jean [UCL] Hols, Pascal [UCL]

We have investigated the effect of overproducing each of the three cold shock proteins (CspL, CspP, and CspC) in the mesophilic lactic acid bacterium Lactobacillus plantarum NC8. CspL overproduction transiently alleviated the reduction in growth rate triggered by exposing exponentially growing cells to cold shock (8 degrees C), suggesting that CspL is involved in cold adaptation. The strain overproducing CspC resumed growth more rapidly when stationary-phase cultures were diluted into fresh medium, indicating a role in the adaptation and recovery of nutritionally deprived cells. Overproduction of CspP led to an enhanced capacity to survive freezing.

Document type Article de périodique (Journal article) – Journal Article, Research Support, Non-U.S. Gov't
Access type Accès libre
Publication date 2003
Journal information "Applied and environmental microbiology" - Vol. 69, no. 7, p. 4285-90 (2003)
Peer reviewed yes
issn 0099-2240
Publication status Publié
Affiliation UCL - SC/BIOL - Département de biologie
MESH Subject Adaptation, Physiological ; Bacterial Proteins - metabolism ; Cold ; Freezing ; Gene Expression Regulation, Bacterial ; Heat-Shock Proteins - metabolism ; Heat-Shock Response ; Lactobacillus - growth & development - physiology
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Bibliographic reference Derzelle, Sylviane ; Hallet, Bernard ; Ferain, Thierry ; Delcour, Jean ; Hols, Pascal. Improved adaptation to cold-shock, stationary-phase, and freezing stresses in Lactobacillus plantarum overproducing cold-shock proteins.. In: Applied and environmental microbiology, Vol. 69, no. 7, p. 4285-90 (2003)
Permanent URL http://hdl.handle.net/2078.1/9508