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Modulation of membrane fluidity by catalytic hydrogenation affects the chilling susceptibility of the blue‐green alga, Anacystis nidulans
Author(s) -
Vigh L.,
Joó F.
Publication year - 1983
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(83)80800-x
Subject(s) - thylakoid , degree of unsaturation , chemistry , acclimatization , photosynthesis , membrane fluidity , biophysics , catalysis , biochemistry , membrane , fatty acid , photochemistry , botany , chloroplast , biology , chromatography , gene
All the changes, i.e. the phase separation temperature of thylakoid lipids, shift in the chilling induced increase of K + permeability and decline in photosynthetic O 2 ‐production, respectively, brought about by temperature acclimation in Anacystis nidulans , can be accomplished by homogeneous catalytic hydrogenation of the fatty acids, as well, using a new water‐soluble Pd(II) complex, hitherto unknown in biological applications. Since the thermo‐adaptation replaced by proper hydrogenation conducted under isothermal condition results in a similar modification of chilling susceptibility, it afforts direct evidence that chilling response is mediated by changing the degree of fatty acid unsaturation in Anacystis nidulans .