During morphogenesis of leaves influence of heavy metals on the intensity of lipid peroxidation prоcesses and changes in the content of components of the cuticle surface layer of the woody plants leaves was studied. It was found that under conditions of industrial pollution in the leaves of Populus italica at high phytoextraction potential free-radical processes slightly activated (by 1.7 times). Also total amount of the surface cuticular lipids increased, while their heterogeneity decreased, which can be regarded as a type of adaptive responses of species. The above leads to its high physiological resistance to the conditions of excessive industrial pollution. In the leaves of Betula pendula with negligible accumulation of heavy metals content of TBA-active products increased more than 2.7 times, while the quantity of surface lipids decreased, which indicates a low ability of this species to adapt to changed environmental conditions. However, against decrease in amounts of diglycerides and phospholipids the level of lipid compounds heterogeneity in B. pendula leaves increased by fractions of free fatty acids and sterols, which are likely have been used to stabilize the cuticular layer at pollution conditions.
Keywords: woody plants, heavy metals, TBA-active products, lipids, adaptation
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