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Physiological responses to sublethal hydrostatic pressure in Yarrowia lipolytica
Author(s) -
Lanciotti R.,
Gardini F.,
Sinigaglia M.,
Guerzoni M. E.
Publication year - 1997
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1046/j.1472-765x.1997.00332.x
Subject(s) - yarrowia , hydrostatic pressure , library science , biology , computer science , physics , biochemistry , gene , thermodynamics
In this study some physiological and biochemical modifications induced by sublethal hydrostatic pressures, ranging between 200 and 800 bar, in four Yarrowia lipolytica strains were investigated. In particular, the changes in the proteolytic and lipolytic activities, as well as the hydrophobicity and cellular fatty acid composition of four strains, were analysed in order to carry out a preliminary investigation on response or adaptation mechanisms. This paper shows the involvement of the membrane systems and of fatty acid desaturase enzymes in the active response to sublethal doses, in addition to the enhancement of extracellular proteases.