On the Effect of Certain Concentrations of Phenols on the Activity Indicators of Seston Esterases in Model and Natural Ecosystems
https://doi.org/10.1134/S2304487X21010041
Abstract
The effect of monophenol on the activity of seston esterases has been simulated. The experiments have been carried out on natural water from the Don river in aquariums where phenol concentrations of 0.02, 0.010, 0.020, and 0.050 mg/l are added. One aquarium is a control tank. Changes in the activity of esterases under the influence of phenol concentrations 0.02, 0.010, 0.020 0.050 mg/l have been analyzed in model experiments and in studies performed on the site of the Seversky Donets river near the Lisichansk city. A canonical and regression analysis has been performed between the activity of extracellular seston esterases and hydrochemical parameters and phenolic compounds. It has been found that in model experiments and studies on drive aquatic ecosystems, the activity of extracellular seston esterases is an informative indicator for assessing the quality of water contaminated with phenolic compounds in the range from 2 to 50 μg/l, the effect of which lasts up to 6 d. +++The regression analysis has shown that the extracellular esterase activity in the section of the Seversky Donets river is predicted by a complex of chemical components consisting of phenols and biogenic substances, as well as by the temperature. The canonical analysis has shown that the state of the aquatic ecosystem can be mathematically described using activity of seston esterases`, as well as a complex of hydrochemical indicators. Accordingly, indicators of extracellular esterase activity can be used to assess the ecological state of aquatic ecosystems in environmental monitoring.
About the Author
O. I. Beisug
Volgodonsk Engineering–Technical Institute, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
347360
Rostov-on-Don oblast
Volgodonsk
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For citations:
Beisug O.I. On the Effect of Certain Concentrations of Phenols on the Activity Indicators of Seston Esterases in Model and Natural Ecosystems. Vestnik natsional'nogo issledovatel'skogo yadernogo universiteta "MIFI". 2021;10(1):47-54. (In Russ.) https://doi.org/10.1134/S2304487X21010041
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