| Issue |
E3S Web of Conf.
Volume 462, 2023
International Scientific Conference “Fundamental and Applied Scientific Research in the Development of Agriculture in the Far East” (AFE-2023)
|
|
|---|---|---|
| Article Number | 02047 | |
| Number of page(s) | 9 | |
| Section | Advances in Crop and Plant Cultivation | |
| DOI | https://doi.org/10.1051/e3sconf/202346202047 | |
| Published online | 12 December 2023 | |
The influence of toxic substances in the environment on the activity of antioxidant enzymes in the tissues of Ceratophyllum demersum and Egeria densa
1 Samara University, Samara, Russia
2 Russian Biotechnological University, Moscow, Russia
3 Institute of Natural Science and Sports Technology Moscow City University, Moscow, Russia
* Corresponding author: onmakurina1954@mail.ru
In the context of a gradual increase in anthropogenic environmental pollution, detailed environmental studies become relevant. It is very important in this regard to monitor the qualitative and quantitative aspects of the influence of the pollution process on various biological objects that receive the influence of substances entering the environment. Of great practical interest are the toxic effects of technogenic discharges on various hydrobionts and the main mechanisms of their development in macrophyte plants. In this regard, this work studied the influence of heavy metal ions, cationic synthetic surfactants and their combinations on the activity of the main antioxidant enzymes in tissues of Ceratophyllum demersum and Egeria densa. To do this, an experiment was conducted to assess changes in the freshwater macrophytes Ceratophyllum demersum and Egeria densa. The dynamics of the activity of antioxidant enzymes: peroxidase, polyphenol oxidase, ascorbate oxidase and catalase were studied. Their activity was assessed basally and in response to chemical stressors (100 µmol/l lead ions, 1% solution of cationic synthetic surfactants) individually and in combination with different exposures to toxic substances. The identified features of enzymatic activity in the tissues of aquatic macrophytes indicate different levels and power of their antioxidant protection. It becomes clear that the activity of antioxidant enzymes when plants are exposed to certain types of pollutants and their combinations is determined by the chemical nature of the pollutant, the mechanism of its action on the plant organism, the duration of exposure and the localization of these enzymes in cell compartments.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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