Journal of Siberian Federal University. Biology / Oil-Degrading Microorganisms of the Genus Pseudomonas with Resistance to Additional Pollutants and Phytostimulating Activity as Promising Agents of Environmental Biotechnology

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Issue
Journal of Siberian Federal University. Biology. 2024 17 (1)
Authors
Korshunova, Tatiana Yu.; Kuzina, Elena V.; Iskuzhina, Milyausha G.; Mukhamatdyarova, Svetlana R.; Sharipova, Yuliyana Yu.
Contact information
Korshunova, Tatiana Yu.: Ufa Institute of Biology of the Ufa Federal Research Centre of RAS Ufa, Russian Federation; : ORCID: 0000-0002-6186-0827; Kuzina, Elena V. : Ufa Institute of Biology of the Ufa Federal Research Centre of RAS Ufa, Russian Federation; ORCID: 0000-0002-6905-0108; Iskuzhina, Milyausha G. : Ufa Institute of Biology of the Ufa Federal Research Centre of RAS Ufa, Russian Federation; ORCID: 0000-0003-0196-9596; Mukhamatdyarova, Svetlana R. : Ufa Institute of Biology of the Ufa Federal Research Centre of RAS Ufa, Russian Federation; ORCID: 0000-0001-7641-7943; Sharipova, Yuliyana Yu.: Ufa Institute of Biology of the Ufa Federal Research Centre of RAS Ufa, Russian Federation; ORCID: 0000-0002-1794-5137
Keywords
oil; herbicides; pseudomonas; PGP-properties; growth-stimulating activity; barley; clover
Abstract

Bioremediation of oil contaminated agricultural soils is greatly hindered by the presence of additional pollutants such as herbicides. They can inhibit the activity of introduced bacterial decomposers. The aim of the study is to screen for herbicide-resistant oil-degrading microorganisms and to evaluate their ability to stimulate growth and development of phytomeliorant plants. Isolated and identified strains of hydrocarbon-oxidizing pseudomonads were found resistant to herbicides based on various active ingredients (2,4-D, imazethapyr, mixtures of imazamox and quizalofop-P-ethyl), as well as to heavy metals such as lead, nickel and zinc. All bacteria exhibited nitrogen- fixing and phosphate- mobilizing activity and produced indolyl-3-acetic acid. They helped plants to overcome stress caused by the presence of pollutants. They contributed to an increase in the length of the roots and shoots of barley and clover in clean and oil-contaminated soil and had a positive effect on clover seedlings in the presence of a herbicide. The P. frederiksbergensis UOM 11 strain was found to have a significant ability to decompose oil; it also enhanced growth and development of plants. Therefore, it is recommended as the basis for microbial-plant complexes for cleaning and restoring soils. The other strains obtained in screening are also valuable from the perspective of environmental biotechnology: P. alcaligenes UOM 10 is an effective oil-destructor; the other microorganisms are prospective growth stimulators for phytomeliorant plants. The results obtained can be used in the development of bioremediation methods for oil-contaminated agricultural soils

Pages
64–81
EDN
NZWNRK
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/152809

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