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Changes in phospholipids during the cell cycle of myxomycete Physarum polycephalum
Author(s) -
Makarov Peter R.,
Rotaru Victor K.,
Polteva Nina A.,
Evtodienko Yuri V.
Publication year - 1994
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(94)00344-0
Subject(s) - physarum polycephalum , phosphatidylethanolamine , phospholipid , phosphatidylinositol , phosphatidylcholine , mitosis , physarum , pi , biochemistry , phase (matter) , chemistry , membrane , biology , microbiology and biotechnology , organic chemistry , kinase
The rate of 32 P i incorporation into the main membrane phospholipid fractions, i.e. phosphatidylcholine (PC), phosphatidylethanolamine (PE) and phosphatidylinositol (PI), as well as their contents in the cells during synchronous growth of the myxomycete, Physarum polycephalum , have been studied. It has been found that both the phospholipid levels and the rates of 32 P i incorporation increase during the S phase till the early G 2 phase, remain nearly constant during the G 2 phase and fall to the initial level at the end of the G 2 phase and in mitosis. It has been revealed that the rate of 32 P i incorporation into PC is very low compared to PE and PI, in spite of the fact that the PC level is the highest. The possible reasons of this phenomenon are discussed.