Study of peculiarities of flavonoids accumulation in common tansy flowers harvested in various urban and agrobiocenoses of Voronezh region

Abstract

An important and little-researched aspect of the effect of human economic activity on medicinal plants is that in response to an increase in anthropogenic load, additional synthesis of secondary metabolites, especially flavonoids, is induced, which play an important role in adapting plants to changing conditions. The purpose of the study was to study the accumulation of flavonoids and phenol carboxylic acids in the flowers of common tansy, collected in various agricultural and urbobiogeocenoses of the Voronezh region from the point of view of anthropogenic impact. As part of the study, the content of the sum of flavonoids and phenol carboxylic acids in terms of luteolin was determined in 51 samples of common tansy flowers. It was revealed that in the flowers of common pajma harvested in agrobiogeocenoses and in a number of urbobiocenoses, the content of flavonoids is generally higher than in samples collected in natural biocenoses of protected areas. This fact can be explained by the biochemical adaptation of the plant to significant oxidative stresses, in response to which the synthesis of polyphenol substances, the main representatives of which are flavonoids, is induced. At the same time, near some production plants and along highways with high traffic intensity, we selected samples with a content of flavonoids and phenol carboxylic acids in terms of luteolin reduced relative to other samples of raw materials. This suggests that with the excessive toxic influence of pollutants, it is also possible to suppress the antioxidant system of plants.