Journal of Siberian Federal University. Biology / The Influence of Hydrocarbon-Oxidizing Auxin-Producing Bacteria on the Growth, Biochemical Parameters, and Hormonal Status of Barley Plants in the Process of Bioremediation of Oil-Contaminated Soil

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Issue
Journal of Siberian Federal University. Biology. 2022 15 (3)
Authors
Rafikova, Gulnaz F.; Kuzina, Elena V.; Vysotskaya, Lidia B.; Arkhipova, Tatiana N.; Korshunova, Tatiana Yu.; Chetverikova, Darya V.; Bakaeva, Margarita D.; Kudoyarova, Guzel R.; Chetverikov, Sergey P.
Contact information
Rafikova, Gulnaz F.:Ufa Institute of Biology of the Ufa Federal Research Centre of RAS Ufa, Russian Federation; ORCID: 0000-0001-7655-5588; Kuzina, Elena V.: Ufa Institute of Biology of the Ufa Federal Research Centre of RAS Ufa, Russian Federation; ORCID: 0000-0002-6905-0108; Vysotskaya, Lidia B.: Ufa Institute of Biology of the Ufa Federal Research Centre of RAS Ufa, Russian Federation; ORCID: 0000-0001-9348-9316; Arkhipova, Tatiana N.: Ufa Institute of Biology of the Ufa Federal Research Centre of RAS Ufa, Russian Federation; ORCID: 0000-0002-6971-1084; Korshunova, Tatiana Yu.: Ufa Institute of Biology of the Ufa Federal Research Centre of RAS Ufa, Russian Federation; ; ORCID: 0000-0002-6186-0827; Chetverikova, Darya V.: Ufa Institute of Biology of the Ufa Federal Research Centre of RAS Ufa, Russian Federation; ORCID: 0000-0002-4917-0831; Bakaeva, Margarita D.: Ufa Institute of Biology of the Ufa Federal Research Centre of RAS Ufa, Russian Federation; ORCID: 0000-0001-8738-4534; Kudoyarova, Guzel R.: Ufa Institute of Biology of the Ufa Federal Research Centre of RAS Ufa, Russian Federation; ORCID: 0000-0001-6409-9976; Chetverikov, Sergey P.: Ufa Institute of Biology of the Ufa Federal Research Centre of RAS Ufa, Russian Federation; ORCID: 0000-0002-7961-1503
Keywords
Enterobacter; Pseudomonas; Hordeum vulgare L.; oil pollution; Enterobacter; Pseudomonas; Hordeum vulgare L.; phytohormones; chlorophyll; flavonoids; nitrogen balance index; proline
Abstract

Extensive research has been done to investigate the relationship between bacteria and plants in the process of bioremediation of soils contaminated with oil, but the effect of oil-degrading bacteria that synthesize phytohormones on the content and distribution of these compounds in plants has been poorly studied. The aim of the field experiment was to study the effect of hydrocarbon-oxidizing bacteria producing auxins on the growth, biochemical parameters, and hormonal status of barley plants in the presence of oil and the prospects for using bacterial-plant associations for treating soil that contains oil (2.7 %, on average). Treatment of plants with cultures of Enterobacter sp. UOM 3 and Pseudomonas hunanensis IB C7 led to an increase in the length and mass of roots and shoots and the leaf surface index and an improvement in the parameters of the components of the crop structure that were suppressed by the pollutant. As a result of bacterization, the contents of chlorophyll and flavonoids increased, and the amount of proline decreased. The most noticeable effect of bacteria on the hormonal system of plants was a decrease in the accumulation of abscisic acid. The data obtained indicate that the treatment of plants with bacterial cultures alleviated the negative consequences of abiotic stress caused by the presence of oil for plants. The use of oil-degrading bacteria and plants in combination rather than separately more effectively reduced the content of hydrocarbons in the soil and increased its microbiological activity. The microbial-plant combinations studied in this work are regarded as promising for the bioremediation of oil-contaminated soils

Pages
314–332
DOI
10.17516/1997-1389-0390
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/149175

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