Influence of tectonic faults on the conditions and properties of some components of a biogeocenosis in a subarctic area

Belyaev, V. I.; Bogolytsyn, Konstantin; Бровко, О. С.; Kutinov, Yuriy; Neverov, Nikolay; Паламарчук, И. А.; Boytsova, Tatiana; Чухчин, Д. Г.; Zhil’tsov, D. V.; Gorshkova, Natalia

doi:10.14712/23361964.2019.1

Cited by 2 publications

(2 citation statements)

References 16 publications

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“…Геохимическая обстановка, почвенно-климатические и экологические условия в зоне ТУ могут изменять химический состав лишайников, в том числе влиять на качественный и количественный состав ФС [18,30].…”

Section: результаты исследования и их обсуждениеunclassified

“…Достоверное снижение содержания УК по направлению к нижней части у лишайников рода Cladonia отмечалось ранее в работах [17,21]. Схожие результаты, демонстрирующие изменение содержания УК (в составе водонерастворимой фракции ФС) под действием геоэкологических факторов в условиях тектоники, были получены в ходе исследований [18,30].…”

Section: результаты исследования и их обсуждениеunclassified

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The Content of Phenolic Compounds in Lichens in the Tectonic Fault Zones

Паламарчук¹,

Belousova²,

Бровко³

et al. 2022

Lesnoy Zhurnal (Forestry Journal)

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The paper studies the influence of geoecological factors on the content of phenolic compounds (PCs) in lichens of the genus Cladonia in the Velsko-Ustyansky and Kholmogorsky tectonic knots (TKs). Lichens were sampled from the test plots (TPs) laid out in the center of the knots and outside the knots (control). The geochemical situation, soil-climatic and environmental conditions in the zone of TKs influence the lichens chemical composition. It is found that the ash content of lichens growing in the center of the TK is 1.8–2.3 times higher than in the control, which indicates a significant accumulation of lithogenic elements in the lichen thallus in the tectonic fault zone. Lichens are exposed to multifactorial adverse effects (increased radiation background and heat flux, electromagnetic radiation, electric and magnetic fields, etc.) in the territory of TKs. This provokes excessive generation of active oxygen radicals and contributes to the rearrangement of lichen metabolism, changing the dynamics of accumulation of PCs and their biosynthesis. The content of the water-insoluble fraction of PCs in lichens was found to increase from the control point to the center of the TK, while the relative share of the water-soluble fraction of PCs in the total composition decreases. This is probably due to an increase in oxidative processes and a decrease in reductive processes in lichens under adverse conditions. The paper shows that the biosynthesis of PCs in lichens is most active in the spring-summer (April and July) vegetation period. The impact of geoecological factors enhances the biosynthesis of secondary metabolites of phenolic nature in lichens in the conditions of the TKs: usnic acid (UA) and atranorin. The content of UA in the composition of the water-insoluble fraction of PCs in lichens growing in the center of the TK is 1.5–1.7 times higher during the spring-summer vegetation period than in lichens growing outside the TK. The quantitative distribution of the water-insoluble fraction of PCs depends on the lichen thallus part and has a gradient character. Their content in the upper growing parts of lichens growing in the center of the TK and in the control is 2 and 1.7 times higher than in the old zones, respectively. Thus, PCs in lichens are active metabolites and their content in thallus can serve as a biomarker of the state of the environment.

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Section: результаты исследования и их обсуждениеunclassified

The Content of Phenolic Compounds in Lichens in the Tectonic Fault Zones

Паламарчук¹,

Belousova²,

Бровко³

et al. 2022

Lesnoy Zhurnal (Forestry Journal)

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Influence of the Tectonic Knots in the North of the Russian Plate on the Environment State at the Microlevel (By the Example of the Content of Ascorbic Acid in Bluberry and Cowberry Fruits)

Staritsyn,

Kutinov,

Polyakova

et al. 2023

Geoèkologiâ

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The study is an addition to a series of articles on the results of monitoring studies on the impact of tectonic knots on the state of the environment in the region. The knots of tectonic dislocations are a link between the abiotic (geological) and biotic environments, and have a significant impact on the state of vegetation cover, both at the macro and micro levels. This article shows the regularity of the content of ascorbic acid (vitamin C) in blueberries and cowberries, depending on their spatial location within the tectonic knot. It was revealed that the concentrations of vitamin C in berries selected in the center and on the periphery of tectonic knots differ. For example, its content in blueberries from the center of the Kholmogory tectonic knot is 37% higher than in berries from the periphery of the same knot. In the fruits of blueberries from the center of the Plesetsk tectonic knot – by 59%, and in cowberries – by 62% more, compared with the periphery. In the fruits of cowberries from the center of the Velsko-Ustyansky tectonic knot – 58% more. These knots differ from each other in geomorphometric, geological, tectonic factors, etc., which allows us to conclude that deep factors influence the state of the environment in general and the concentration of vitamin C in blueberries and cowberries in particular.

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Influence of tectonic faults on the conditions and properties of some components of a biogeocenosis in a subarctic area

Cited by 2 publications

References 16 publications

The Content of Phenolic Compounds in Lichens in the Tectonic Fault Zones

The Content of Phenolic Compounds in Lichens in the Tectonic Fault Zones

Influence of the Tectonic Knots in the North of the Russian Plate on the Environment State at the Microlevel (By the Example of the Content of Ascorbic Acid in Bluberry and Cowberry Fruits)

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