Modulation of membrane fluidity by catalytic hydrogenation affects the chilling susceptibility of the blue‐green alga, Anacystis nidulans

FEBS Letters

Joó, F.¹  Vigh, L.² 

[1] Institute of Physical Chemistry, Kossuth Lajos University, PO Box 7, 4010 Debrecen, Hungary;Institute of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, PO Box 521, 6701 Szeged Hungary

关键词: Membrane fluidity;    Chilling susceptibility;    Catalytic hydrogenation;    Anacystis nidulans;   

DOI  :  10.1016/0014-5793(83)80800-X

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

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 O₂-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.

【 授权许可】

Unknown