Post-fire composition of lipids in waters and plants of Great Vasyugan Mire

• Published in: IOP conference series. Earth and environmental science Vol. 928; no. 1; pp. 12010 - 12016
• Main Authors: Russkikh, I V, Strel’nikova, E B, Serebrennikova, O V, Kharanzhevskaya, Yu A
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.12.2021
• Subjects: Alkanes; Biomolecules; Chemical indicators; Composition; Cyclic compounds; Fatty acids; Gas chromatography; Geographical distribution; Lipids; Mass spectrometry; Mass spectroscopy; Organic compounds; Pentacyclic triterpenoids; Plant species; Sedimentary rocks; Sesquiterpenoids; Steroid hormones; Triterpenoids; Water analysis
• ISSN: 1755-1307; 1755-1315
• DOI: 10.1088/1755-1315/928/1/012010

Abstract A lipid compositions were determined in water and plant samples taken in natural and burnt-out areas of the Bakchar bog (northeastern part of Great Vasyugan Mire) located in the basin of the Gavrilovka River within Tomsk region and were analyzed via gas chromatography-mass spectrometry. The following main groups of organic compounds have been identified: acyclic n -alkanes, fatty acids, and n -alkan-2-ones. Among cyclic compounds steroids, sesquiterpenoids, and pentacyclic triterpenoids have been identified. It was shown that lipids in waters contained biomolecules of plants grown in the areas under study. Chemical indicators reflecting the disappearance of plants since a fire and their restricted distribution or replacement of some plant species with others were found out. These indicators can be used in paleoclimatic reconstructions to fix post-pyrogenic layers in the sedimentary rock strata.