Open AccessMicrobial preparations as a factor of plant resistance to the stress effects of heavy metals
Author(s) -
L.A. Chaikovskaya,
M.I. Baranskaya,
О. Л. Овсиенко
Publication year - 2020
Language(s) - English
Resource type - Conference proceedings
DOI - 10.33952/2542-0720-15.05.2020.21
Subject(s) - ascorbic acid , sowing , contamination , peroxidase , inoculation , chemistry , horticulture , antioxidant , agronomy , soil contamination , glutathione , food science , biology , enzyme , biochemistry , ecology
The results of the influence of the complex microbial preparations (CMP) on the formation of the winter wheat antioxidant protection system in case of soil contamination with Pb, Cu, Cr are presented. Soil contamination with HM led to an increase in the content of ascorbic acid, glutathione, and peroxidase in wheat leaves. The use of CMP for pre-sowing inoculation of seeds helps to reduce the content of these indicators in the leaves of plants. Thus, bacterization contributed to a decrease in the content of ascorbic acid in the leaves by 13-35%. There was also a decrease in the content of glutathione in the leaves of plants grown from inoculated seeds. It decreased by 14-32%, 12-25%, and 19-24% on the background of НM soil contamination at the level of 1, 2.5 and 5 MPC, respectively. Our studies have shown a decrease in the content of peroxidase in the leaves of bacterized wheat plants on the background of soil contamination at the level of 1, 2.5 and 5 MPC HM by 7–19%, 14-33%, and 25-49%, respectively. Thus, soil contamination with HM leads to an increase in the content of ascorbic acid, glutathione, and peroxidase in the leaves of young winter wheat plants. The use of CMP for pre- sowing inoculation of seeds helps to reduce the content of these indicators in the phytomass of plants. This indicates an increased plant resistance to oxidative stress caused by HM.