The composition of biomolecules in herbaceous plants in post-pyrogenic and background areas of the steppe zone of Khakassia
I. V. RUSSKIKH, E. B. STRELNIKOVA, O.V. SEREBRENNIKOVA
Institute of Petroleum Chemistry, Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia
Keywords: organic compounds, herbaceous plants, background and post-pyrogenic areas, Khakassia
Abstract
The composition of biomolecules of herbaceous plants, some of which possess biological activity, has been studied and identified by chromatography - mass spectrometry in post-pyrogenic and background areas of the steppe zone of Khakassia. Insignificant differences were noted in the composition of acyclic compounds - n-alkanes, n-aldehydes, n-alkanols and long-chain n-alkanones. More significant changes are observed in the composition of steroids, though the pyrogenic effect on their composition in certain species of herbs varies and leads, along with different changes in the total content (from a decrease in the majority of plants to an increase in iris), to the redistribution of the proportion of individual representatives. Less stable to the action of fire were steroids with an unsaturated (double) bond in position 24 of the molecule, the content of which in the composition of all the studied herbs in post-pyrogenic areas is lower than in the background.
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