Abstract
The effect of oxidative stress on the activity and multiple forms of ribonuclease (EC 3.1.) and peroxidase (EC 1.11.1.7) in seedlings of cultured soybean grown under the influence of heavy metals is studied. In this regard, the activity of the antioxidant peroxidase and the content of malon dialdehyde, which characterizes the degree of lipid peroxidation, was determined in soybean seedlings of the Lydia variety. The increased level of malondialdehyde (MDA) under the influence of heavy metals indicates that the toxicity of these pollutants appeared through stimulating the formation of reactive oxygen species (ROS), which led to the development of oxidative stress. Studies have established that ribonuclease activity in soybean seedlings increases under conditions of oxidative stress caused by cadmium sulfate. It was shown that the ribonuclease activity in soybean seedlings increases under conditions of oxidative stress caused by cadmium sulfate. The biogenic elements Cu and Zn reduced the activity of ribonuclease. Cd significantly increased it due to the emergence of new forms of the enzyme, which indicates the ability of soy sprout cells to withstand the effects of heavy metal cadmium plant stressor. At the same time, the enhancement of lipid peroxidation is a signal, which is realized by changes in the peroxidase and ribonuclease activity, that protects the plant cell from stress.
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Sinegovskaya, V.T., Terekhova, O.A., Lavrent’yeva, S.I. et al. Effect of Heavy Metals on Oxidative Processes in Soybean Seedlings. Russ. Agricult. Sci. 46, 28–32 (2020). https://doi.org/10.3103/S1068367420010164
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DOI: https://doi.org/10.3103/S1068367420010164