Improved adaptation to cold-shock, stationary-phase, and freezing stresses in Lactobacillus plantarum overproducing cold-shock proteins.
Appl Environ Microbiol
; 69(7): 4285-90, 2003 Jul.
Article
em En
| MEDLINE
| ID: mdl-12839816
ABSTRACT
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.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Adaptação Fisiológica
/
Temperatura Baixa
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Resposta ao Choque Térmico
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Congelamento
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Proteínas de Choque Térmico
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Lactobacillus
Idioma:
En
Ano de publicação:
2003
Tipo de documento:
Article