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Influence of petroleum products on the state of microbiocenosis of soil during short and medium terms of pollution

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dc.contributor.authorMalynovska, I.
dc.contributor.authorBulgakov, V.
dc.contributor.authorOlt, Jüri
dc.contributor.authorRucins, A.
dc.contributor.departmentEstonian University of Life Sciences. Institute of Forestry and Engineeringeng
dc.date.accessioned2024-06-07T12:28:37Z
dc.date.available2024-06-07T12:28:37Z
dc.date.issued2024
dc.descriptionReceived: January 25th, 2024 ; Accepted: May 1st, 2024 ; Published: May 21st, 2024 ; Correspondence: adolfs.rucins@lbtu.lveng
dc.description.abstractBioremediation by autochthonous microbial communities is currently considered the main and most environmentally secure way how to remove petroleum products from contaminated soils. To study the possibilities to control the processes of biodegradation of aviation kerosene by indigenous communities of the soil together with plants and in the presence of a cometabolite (glucose), a model experiment was carried out with concentrations of aviation fuel from 0 to 20%. Soil without the addition of petroleum products served as reference. The state of the microbial community was studied 1 and 21 days after the addition of the petroleum products. It has been established that the soil contamination with petroleum products within one day leads to quantitative and qualitative changes in the state of the microbial cenosis, and the phytotoxicity of the soil significantly increases. At low concentrations of the petroleum products (1%) the occurrence of microbiological processes in the soil slows down, and at high concentrations (20%) they intensify. It has been shown that an increase in the number of polysaccharide-synthesising bacteria increases not only the absolute amount of degraded petroleum products from 0.240 to 1.88 g kg-1, but also their relative share from 6.33%. Growing plants and adding easily accessible substrates to the soils contaminated with petroleum products ensures more active destruction of pollutants (by 63.6 and 45.5%, respectively) compared to the soils without phytocenosis and the addition of exogenous substrates.eng
dc.identifier.issn2228-4907
dc.identifier.publicationAgronomy Research, 2024, vol. 22, Special Issue 1, pp. 473–483eng
dc.identifier.urihttp://hdl.handle.net/10492/9350
dc.identifier.urihttps://doi.org/10.15159/ar.24.044
dc.publisherEstonian University of Life Scienceseng
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)eng
dc.rightsinfo:eu-repo/semantics/openAccesseng
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectmicrobiocenosiseng
dc.subjectecological and trophic groupseng
dc.subjectmineralizationeng
dc.subjecthumuseng
dc.subjecttoxicityeng
dc.subjectpollution with petroleum productseng
dc.subjectarticleseng
dc.titleInfluence of petroleum products on the state of microbiocenosis of soil during short and medium terms of pollutioneng
dc.typeinfo:eu-repo/semantics/articleeng

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2024, Vol. 22, Special Issue 1