Enzyme activity dynamics in the buds of some Ficus genus genotypes on the Southern Coast of the Crimea
https://doi.org/10.25684/2712-7788-2024-1-170-13-25
Abstract
The activity of peroxidase, catalase and polyphenol oxidase in the buds of some Ficus genus genotypes with varying degrees of frost resistance from December to March for three years was studied. The activity of peroxidase was determined spectrophotometrically by the rate of benzidine oxidation reaction, polyphenol oxidase – colorimetrically in the presence of pyrocatechol and p-phenylenediamine, catalase – by the titrimetric method.
Analysis of changes in enzyme activity during the cold periods of the three years of the study showed that the activity of peroxidase and polyphenol oxidase depends on the specific weather conditions of the year. Catalase activity revealed species specificity and minimal dependence on weather conditions, increasing during the entire cold period over the course of three years of research. At the same time, the dynamics of the activity of these enzymes in the buds of resistant and unstable genotypes differed. It is assumed that these enzymes are involved in the implementation of protective mechanisms of the studied genotypes of the genus Ficus under lowtemperature stress. Throughout the entire study period, unstable genotypes differed from resistant genotypes by a higher level of activity of the studied enzymes in the buds. Indicators of the activity of peroxidase, catalase and polyphenoloxidase in the buds can be used as biochemical markers to assess the level of frost resistance of genotypes of deciduous species of the genus Fiсus.
About the Author
O. A. Grebennikova
Никитский ботанический сад – Национальный научный центр
Russian Federation
Russian Federation
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Review
For citations:
Grebennikova O.A. Enzyme activity dynamics in the buds of some Ficus genus genotypes on the Southern Coast of the Crimea. Plant Biology and Horticulture: theory, innovation. 2024;(1 (170)):13-25. (In Russ.) https://doi.org/10.25684/2712-7788-2024-1-170-13-25
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