Open AccessThe role of antioxidants in the mechanisms of adaptation of <i>Poa Pratensis </i>L. under the influence of wooden plants
Author(s) -
О. Л. Цандекова,
Elena Yu. Kolmogorova
Publication year - 2021
Publication title -
bûlletenʹ gosudarstvennogo nikitskogo botaničeskogo sada
Language(s) - English
Resource type - Journals
ISSN - 0513-1634
DOI - 10.36305/0513-1634-2021-139-109-116
Subject(s) - ascorbic acid , scots pine , poa pratensis , chemistry , peroxidase , antioxidant , botany , horticulture , food science , biology , biochemistry , enzyme , pinus <genus> , poaceae
The article analyzes the results on the content of peroxidase, phenolic compounds and ascorbic acid in the leaves of meadow bluegrass during the growing season under plantations of woody plants (scots pine and ash-leaved maple). The peroxidase activity in the leaves of plant samples was determined by the method of A.N. Boyarkin, the content of ascorbic acid - by the titrimetric method using sodium 2,6-dichlorophenolindophenol, water-soluble phenolic compounds - by the Leventhal-Neubauer method. Mutual regulation of the plant antioxidant defense system was established, expressed in an increase in the level of ascorbic acid, but a decrease in the activity of peroxidase and phenolic compounds. The accumulation of metabolites in the studied plants varied depending on the phases of the growing season and growing conditions. Scots pine had the greatest inhibitory effect on the studied species than ash-leaved maple. The results obtained can be used to assess the state of the ground cover and the structure of the phytocenosis.