LIPID RAFTS IN PLANT CELLS ARE SENSITIVE TO THE INFLUENSE OF SIMULATED MICROGRAVITY

1Kordyum, EL, 1Klymenko, O, 1Bulavin, IV, 1Zhupanov, IV, 1Vorobyova, TM, 2Ruelland, E
1M.G. Kholodny Institute of Botany of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
2Institute of Ecology and Environmental Sciences, University Paris-Est Creteil, Paris, France
Space Sci.&Technol. 2018, 24 ;(4):71-80
Section: Space Life Sciences
Publication Language: Ukrainian
Abstract: 
We present the results of the investigations of the composition and content of saturated fatty acids and sterols in lipid rafts isolated from the root cytoplasmic membrane of Pisum sativum seedlings grown during 6 days under clinorotation. A significant increase in the cholesterol and some saturated acid content was shown for the first time. Such increase may indicate the raft rigidity strengthening under clinorotation in comparison with those of the cytoplasmic membrane. Based on the obtained data, it is proposed to pay more attention to the studies of a role of plant lipid rafts in cell gravisensitivity, as rafts control many important cell processes.
Keywords: clinorotation, fatty acids, Pisum sativum, plasmalemma, rafts, sterols