Scientific publications

The results of the study of fatty acids composition of lipids in the thallus of a lichen Hypogymnia physodes (L.) Nyl. under different levels of pollution are presented. The patterns of the fatty acids composition of neutral lipids, phospholipids and glycolipids were investigated. Neutral lipids were characterized by accumulation of oleic (50%) and linoleic (35%) fatty acids, phospholipids – linoleic acid (50%) and glycolipids – linolenic acid (35–40%). In addition, glycolipids contained tetraene fatty acids (about 15%) which were absent in other lipids fractions. It might be due to physiological characteristics of thallus of Hypogymnia physodes, which are realized at the cellular level. Moreover, under polluted conditions the trend of increasing of lipids amount, as well as the proportions of linolenic acid in the glycolipids and phospholipids was registered. Thus, obtained results showed the involving of the biochemical mechanisms of lichen thallus adaptation under high anthropogenic load.