Open AccessInduction of baroresistance by hydrogen peroxide, ethanol and cold‐shock in Saccharomyces cerevisiae
Author(s) -
Palhano Fernando L.,
Orlando Marcos T.D.,
Fernandes Patricia M.B.
Publication year - 2004
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1016/j.femsle.2004.02.002
Subject(s) - saccharomyces cerevisiae , hydrogen peroxide , ethanol , yeast , hydrostatic pressure , shock (circulatory) , chemistry , biochemistry , saccharomyces , food science , biophysics , biology , medicine , thermodynamics , physics
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 °C) pretreatment for different lengths of times was studied in the yeast Saccharomyces cerevisiae . The protection conferred by these different treatments was similar (∼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.