Konturska O. Lipid composition of maize seedling roots plasma membrane under salinity and synthetic growth regulators treatment

The thesis deals with the investigation of alterations in lipid composition of maize seedlings roots plasma membrane and lipid degradation enzymes under the salt stress condition and possibility correcting these processes by synthetic compounds methyure and ivine. It was shown, that NaCl change the plasmatic membrane lipid components ratio, it independs on stress durations and salt concentration. The low salinity results in rising of phospholipase D and lipoxygenase activities, but the high salinity results in decrease in the enzyme activity. It was shown, the synthetic compounds treatment results in normalization of plasmatic membrane lipids compound and increse the enzyme activity under salt stress. It was demonstrated, the methyure has antioxidant ability in vitro. Obtained data incicate the possibsliti of using methyure and ivine for plant salt-tolerance increase.