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The effect of treatment of wheat seeds with a suspension culture of cells of endophytic bacteria of the strain Bacillus subtilis 26D and lines B. subtilis 26D+n, selected for tolerance to crude oil components, on the growth and biochemical characteristics of wheat plants Triticum aestivum L. in conditions of oil pollution of the soil was studied. It has been shown that seed inoculation with the line B. subtilis 26D+n stimulated the growth of seedlings and suppressed the development of oxidative stress under conditions of exposure to oil pollution in plants in comparison with the control and plants inoculated with the strain B. subtilis 26D. Accordingly, bacteria B. subtilis 26D+n contributed to more successful growth of wheat plants on oil-contaminated soils, which can be used to stimulate the growth of plants in such areas and to return some of them to economic circulation. [ABSTRACT FROM AUTHOR]

The effect of salt stress on Triticum aestivum L. plants inoculated with endophytic strains of B. subtilis was studied. The treatment of Triticum aestivum L. with endophytic bacterial strains of B. subtilis was shown to increase plant resistance to the stress factor. The inoculation reduced the development of oxidative stress and the entry of sodium ions into aboveground plant organs. The antistress effect of endophytic strains of B. subtilis and their ability to reduce the absorption of sodium ions by Triticum aestivum L. plants can be employed to promote plant growth during cultivation of crops on saline lands. [ABSTRACT FROM AUTHOR]