Lactic acid bacteria cellular responses for enviromental stress
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Lactic acid bacteria (LAB) constitute a heterogeneous group of bacteria that are traditionally used to produce fermented foods. The industrialization of food biotransformations increased the economical importance of LAB. The development of new applications such probiotic foods reinforces the need for robust LAB. They have to survive in the digestive tract, and express specific functions under conditions that are unfavorable to growth. A better understanding of the mechanisms of stress resistance and LAB cellular responses should allow to prepared these bacteria for industrial processes. Range of examples of diferent enviromental stress, related genes and molecular mechanisms of the stress responses are presented.
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Justyna Sadowska, Katedra Biotechnologii i Mikrobiologii Zywnosci, Uniwersytet Przyrodniczy, ul. Wojska Polskiego 48, Poznan, Poland