Open AccessYield of spring wheat due to lipid peroxidation under the influence of Bacillus oligonitrophilus bacterization
Author(s) -
V. M. Pakhomova,
A.I. Daminova,
A. Yu. Kozhevnikov,
I.V. Galiyakhmetov
Publication year - 2020
Language(s) - English
Resource type - Conference proceedings
DOI - 10.33952/2542-0720-15.05.2020.18
Subject(s) - malondialdehyde , lipid peroxidation , agronomy , bacteria , chemistry , antioxidant , yield (engineering) , food science , horticulture , biology , biochemistry , genetics , materials science , metallurgy
The purpose of the article was to study the resistance of spring wheat under the influence of foliar treatment of plants with silicate bacteria according to lipid peroxidation (LP) and yield. The studies were conducted on spring wheat (variety ‘MiS’). The cultivation technology is typical wheat in this agroclimatic zone. The foliar treatment was carried out with a culture of bacteria Bacillus oligonitrophilus by spraying at the rate of 0.5 l/m2 of bacteria suspension containing 109 cells/ml (equally to 100% concentration). Field experiment design: option 1 – plants without treatment (control); option 2 – treatment with B. oligonitrophilus fertilizers at the stage of tillering; option 3 – treatment with B. oligonitrophilus fertilizers at the stage of tillering/stem elongation; option 4 – treatment with B. oligonitrophilus at the stage of tillering/stem elongation/heading. The activity of LP in wheat leaves was identified according to the content of malondialdehyde (MDA). The content of MDA was determined photometrically during interaction with thiobarbiturate. Wheat yield increase was observed in options 3 and 4 (by 11 and 15%, respectively). The content of MDA decreased in all phases of wheat vegetation in the same experimental options (by 14 and 21%, respectively), which indicated the antioxidant effect of the studied preparation. Thus, the bacterization of wheat with B. oligonitrophilus leads to the plant resistance increase. The protective effect is probably due to the action of a complex of their biologically active substances (metabolites) including the antioxidant mechanism of action.