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Transcript 
THE EFFECTS OF ABSCISIC ACID ON PHOSPHOLIPASES C
ACTIVITY IN THE MAIZE LEAVES
O.M. Iakovenko1, S.V. Kretynin1, Kabachevskaya E.M.2, G.V. Lyakhnovich2,
V.P. Kukhar1, I.D. Volotovski2, V.S. Kravets1
1
Institute of Bioorganic Chemistry and Petrochemistry, National Academy
of Sciences of Ukraine, Murmanska 1, Kyiv, 02094, Ukraine, 1 Murmanska St.,
Kyiv, 02094, Ukraine
2
Institute of Biophysics and Cell Engineering, National Academy of
Sciences of Belarus 27 Akademicheskaya St., Minsk 220072, Belarus
The effect of ABA on metabolism changes of inositol 1,4,5-trisphosphate
(Ins(1,4,5)P3)
and
polyphosphatidylinositols
-
phosphatidylinositol
4,5-
bisphosphate (PI(4,5)P2) and phosphatidylinositol 4 - phosphate (PI(4)P) - was
investigated in maize leaf cells in vivo. The rapid increase of Ins(1,4,5)P3 level in
comparison with control accompanied by decreasing of PI(4)P and PI(4,5)P 2 was
shown. The activation of phospholipase C duaring early stage of ABA action was
concluded.
Key words: Zea mays L, phospholipase C, abscisic acid, inositol 1,4,5trisphosphate, phosphatidylinositol 4,5-biphosphate.
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