Study of the Effect of Mowing and Drying on the Lipid Composition of Grass Leaves in Permafrost Ecosystems

Mowing the plant shoots under hot, sunny, and dry conditions severely traumatizes the entire vegetative body, and the overall life cycle of the plant is altered. The purpose of the present research was to investigate the effects of mowing and drying on lipids, fatty acids (FA), sterols, and the syst...

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Published inAgronomy (Basel) Vol. 13; no. 9; p. 2252
Main Authors Nokhsorov, Vasiliy V, Dudareva, Lyubov V, Semenova, Natalia V, Petrov, Klim A
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.08.2023
Subjects
Analysis
Autumn
Carbohydrates
Cold
Cold treatment
Composition
Diet
Drying
Ecosystems
Fatty acids
Flowers & plants
Grasses
Leaves
Life cycles
Lipid composition
Lipids
Low temperature
Metabolism
mixture of herbs
Mowing
Nutrients
Permafrost
Phospholipids
Phytosterols
plant raw material
Plants
Precipitation
Radiation
Raw materials
Seasons
Shoots
Sterols
Summer
Vegetation
Russia
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Summary:Mowing the plant shoots under hot, sunny, and dry conditions severely traumatizes the entire vegetative body, and the overall life cycle of the plant is altered. The purpose of the present research was to investigate the effects of mowing and drying on lipids, fatty acids (FA), sterols, and the systemic responses in leaves of plant material at three time points (24 h, 72 h, and leaves of new shoots after traumatic mowing in summer (1 July) and those subjected to cold hardening by autumn temperatures in September (aftergrass)) were analyzed for the first time. The leaves of five species of herbaceous plants growing in permafrost ecosystems were analyzed by HPTLC and GC-MS. It was established that fatty acids in the tissues of aftergrass leaves were characterized by higher values of the n-6/n-3 ratio than in summer grasses. It was demonstrated that exposure of leaves for 72 h in natural conditions in summer and at low temperatures in autumn in leaves of aftergrass resulted in significant changes in the composition of membrane phospholipids. The obtained findings indicate that leaves of aftergrass are the most valuable plant raw material in terms of FAs and phytosterols content compared to hay mowed in summer.
ISSN:2073-4395
2073-4395
DOI:10.3390/agronomy13092252