Accumulation of intracellular glycogen and trehalose by Propionibacterium freudenreichii under conditions mimicking cheese ripening in the cold.
Seven Propionibacterium freudenreichii strains exhibited similar responses when placed at 4°C. They slowed down cell machinery, displayed cold stress responses, and rerouted their carbon metabolism toward trehalose and glycogen synthesis, both accumulated in cells. These results highlight the molecular basis of long-term survival of P. freudenreichii in the cold.
INRA, UMR1253 Science et Technologie du Lait et de l'Œuf, Rennes, France.
Marion
M
Dalmasso
Julie
J
Aubert
Sergine
S
Even
Hélène
H
Falentin
Marie-Bernadette
MB
Maillard
Sandrine
S
Parayre
Valentin
V
Loux
Jarna
J
Tanskanen
Anne
A
Thierry
D002244:Carbon / Q000378:metabolism; D002611:Cheese / Q000382:microbiology*; D003080:Cold Temperature; D006003:Glycogen / Q000378:metabolism*; D011424:Propionibacterium / Q000254:growth & development / Q000378:metabolism / Q000502:physiology* / Q000528:radiation effects; D013312:Stress, Physiological; D014199:Trehalose / Q000378:metabolism*
D002244:Carbon; D006003:Glycogen; D014199:Trehalose