The acquisition of tolerance to high hydrostatic pressure of 220 MPa (HHP) in response to a 0.4 mM hydrogen peroxide, 6% ethanol and cold-shock (10 degrees C) pretreatment for different lengths of times was studied in the yeast Saccharomyces cerevisiae. The protection conferred by these different treatments was similar ( approximately 3 log cycles) and time-dependent. Analysis of the induction of the most pressure up-regulated genes under these conditions was investigated by RT-PCR. Our results revealed that the cell stress response to HHP shares common features with hydrogen peroxide and ethanol stresses, but differs in some way to cold-shock.
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Palhano et al. (2004) studied this question.
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