Assessment of Enzymatic Activity of Haplic Chernozem Contaminated with Ag, Bi, Te, and Tl

IF 1.4 4区农林科学 Q4 SOIL SCIENCE Eurasian Soil Science Pub Date : 2024-03-14 DOI:10.1134/s1064229323603037

T. V. Minnikova, S. I. Kolesnikov, N. A. Evstegneeva, A. N. Timoshenko, N. I. Tsepina, K. Sh. Kazeev

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Abstract

Enzymatic activity of soils is the most important diagnostic indicator of the ecological state of soils affected by various types of anthropogenic impact. The aim of the study was to evaluate the enzymatic activity of ordinary chernozem (Haplic Chernozem) contaminated with Ag, Bi, Te, and Tl. Ten enzymes (catalase, dehydrogenase, peroxidase, polyphenol oxidase, ascorbate oxidase, ferrireductase, protease, phosphatase, invertase, and urease) were analyzed. According to the degree of inhibition of enzymes, heavy metals formed the following sequence: Tl > Ag > Bi > Te. With an increase in the concentration of heavy metals, the toxic effect on the activity of enzymes increased. The oxidoreductases showed greater sensitivity to Ag, Bi, Te, and Tl contamination than hydrolases. Among oxidoreductases, the highest sensitivity was found for ferrireductase, and the lowest one for ascorbate oxidase. According to the activity of enzymes of the hydrolase class, invertase was the most sensitive, and urease was the least sensitive. When contaminated with Ag, Bi, and Te, invertase had the highest informative value, and when contaminated with Tl, urease and polyphenol oxidase were the most informative. Among the enzymes of the oxidoreductase class, the highest information value was found for peroxidase, and the lowest one for ascorbate oxidase. Among the enzymes of the hydrolase class, invertase was the most sensitive, and phosphatase was the least sensitive. The results of the study can be used to assess the ecological state of soils contaminated with Ag, Bi, Te and Tl.

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评估受银、铋、碲和钛污染的 Haplic Chernozem 的酶活性

摘要土壤酶活性是反映受各种人为影响的土壤生态状况的最重要的诊断指标。本研究旨在评估受 Ag、Bi、Te 和 Tl 污染的普通切尔诺泽姆（Haplic Chernozem）的酶活性。研究分析了十种酶（过氧化氢酶、脱氢酶、过氧化物酶、多酚氧化酶、抗坏血酸氧化酶、铁还原酶、蛋白酶、磷酸酶、转化酶和脲酶）。根据对酶的抑制程度，重金属形成了以下序列：Tl > Ag > Bi > Te。随着重金属浓度的增加，对酶活性的毒性作用也随之增加。与水解酶相比，氧化还原酶对 Ag、Bi、Te 和 Tl 污染的敏感性更高。在氧化还原酶中，铁还原酶的敏感性最高，抗坏血酸氧化酶的敏感性最低。根据水解酶类的活性，转化酶最敏感，脲酶最不敏感。当受到 Ag、Bi 和 Te 污染时，转化酶的信息值最高，而当受到 Tl 污染时，脲酶和多酚氧化酶的信息值最高。在氧化还原酶类的酶中，过氧化物酶的信息值最高，抗坏血酸氧化酶的信息值最低。在水解酶类的酶中，转化酶最敏感，磷酸酶最不敏感。研究结果可用于评估受 Ag、Bi、Te 和 Tl 污染的土壤的生态状况。

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来源期刊

Eurasian Soil Science 农林科学-土壤科学

CiteScore

2.70

自引率

35.70%

发文量

137

审稿时长

12-24 weeks

期刊介绍： Eurasian Soil Science publishes original research papers on global and regional studies discussing both theoretical and experimental problems of genesis, geography, physics, chemistry, biology, fertility, management, conservation, and remediation of soils. Special sections are devoted to current news in the life of the International and Russian soil science societies and to the history of soil sciences. Since 2000, the journal Agricultural Chemistry, the English version of the journal of the Russian Academy of Sciences Agrokhimiya, has been merged into the journal Eurasian Soil Science and is no longer published as a separate title.