[Investigation of oxosubstances in plant leaf lipids].

Surface lipids of plant leaves of different groups were investigated by spectral, chromatographic and functional analysis methods. Absence of oxosubstances in surface lipids of coniferous and their characteristics in tropical species were shown. Functions of oxosubstances are discussed.

[Spectral and thermographic characteristics of surface lipids from various plants].

Spectral (IR) and thermogravimetrical properties of surface lipids of two coniferous species, differing during molecular weights of their components, were investigated in the process of ontogenic development. Different mechanisms of surface lipid formation in leaves of the investigated species are shown. It is supposed that low temperature endothermic effect, which is connected with phase transfer of the surface lipids amorphous part may play functional role in formation of stability of plants to gases.