A. F. Ryabukha1, I. V. Pletneva2 , A. N. Geysman2
1 Federal Scientific Centre of Agroecology, Complex Melioration and Protective Afforestation of the Russian Academy of Sciences, Volgograd, Russia
2 Volgograd State Medical University of the Ministry of Health of the Russian Federation, Volgograd, Russia
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Volume 25 No. 12
Date of paper submission: 10.06.2025, date of review: 28.07.2025, date of acceptance: 09.09.2025
Published: 12/31/2025
Abstract. The study of the adaptive potential of plants, formed under the influence of various natural and anthropogenic environmental factors, helps in solving applied and fundamental problems of agroforestry. The purpose of the study is an assessment of changes in the content of secondary metabolites of the polyphenolic structure under the influence of stress factors (high and low temperatures, excessive lighting, etc.) in the leaves of oak petiolate, dogwood brilliant, scumpia leatherworm, leaves and fruits of barberry monetiform, common privet. Materials and methods. The total amount of polyphenolic substances and anthocyanins in the extracts was determined by spectrophotometry, according to the guidelines. Scientific novelty. For the first time, the change in the content of polyphenolic substances in different ecotypes of the natural oak population was assessed, and an ecotype with high drought resistance was identified. The factors contributing to the increased accumulation of anthocyanins in certain types of woody and shrubby vegetation used for landscaping in the Volgograd region have been identified. Results. The upland form of the oak is characterized by an increased content of polyphenolic compounds (by 44 % compared to the thalweg thalweg ecotype and by 32 % compared to the slope ecotype), which may be due to its increased drought resistance. The highest content of anthocyanins was found in the fruits of european privet (733.55 ± 20.7 mg / 100 g dry weight) and red leaves of scumpia leatherweed (283.02 ± 15.3 mg / 100 g dry weight), the lowest content of anthocyanins was found in the green leaves of scumpia leatherweed (7.12 ± 2.8 mg / 100 g dry weight). The total number of polyphenolic compounds in the leaves of scumpia leatherworm and european privet increased during the growing season compared with the dormant phase (by 29 % and 25 %, respectively), in the leaves of dogwood and barberry, a decrease in the content of polyphenols was observed during the growing season compared with the dormant phase (by 27 % and 23 %, respectively). The fruits of the European privet, the leaves of the tanned scumpia, and the brilliant dogwood can serve as unconventional sources of anthocyanins upon the onset of the phenological phase of leaf discoloration in autumn.
Keywords: polyphenols, anthocyanins, adaptive potential of plants, oak petioles, shrubs, agroforestry
Acknowledgements. The research was carried out at the expense of a grant from the Russian Science Foundation No. 25-24-20170, which includes regional co-financing from the Committee of Education and Science of the Volgograd region: https://rscf.ru/project/25-24-20170/
For citation: Ryabukha A. F., Pletneva I. V., Geysman A. N. Assessment of the content of polyphenolic compounds as low-molecular-weight stress markers in certain types of woody and shrubby vegetation of the Volgograd region. Agrarian Bulletin of the Urals. 2025; 25 (12): 2075‒2086. https://doi.org/10.32417/1997-4868-2025-25-12-2075-2086 (In Russ.)
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