Hydrocarbon bioremediation on Arctic shorelines: Historic perspective and roadway to the future

Góngora, Esteban; Chen, Ya-Jou; Ellis, Madison; Okshevsky, Mira; Whyte, Lyle G.

doi:10.1016/j.envpol.2022.119247

Cited by 14 publications

(3 citation statements)

References 185 publications

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“…The ability of microorganisms to degrade pollutants, including crude oil hydrocarbons (primarily n -alkanes and mono- and polyaromatic compounds), remains one of the most important topics of modern biotechnological research 8 , 9 . This ability makes it possible to use microorganisms in technologies for cleanup of the environment from crude-oil pollution 10 , 11 .…”

Section: Introductionmentioning

confidence: 99%

Pseudomonas veronii strain 7–41 degrading medium-chain n-alkanes and polycyclic aromatic hydrocarbons

Mullaeva

Delegan

Streletskii

et al. 2022

Sci Rep

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Pollution of the environment by crude oil and oil products (represented by various types of compounds, mainly aliphatic, mono- and polyaromatic hydrocarbons) poses a global problem. The strain Pseudomonas veronii 7–41 can grow on medium-chain n-alkanes (C8–C12) and polycyclic aromatic hydrocarbons such as naphthalene. We performed a genetic analysis and physiological/biochemical characterization of strain 7–41 cultivated in a mineral medium with decane, naphthalene or a mixture of the hydrocarbons. The genes responsible for the degradation of alkanes and PAHs are on the IncP-7 conjugative plasmid and are organized into the alk and nah operons typical of pseudomonads. A natural plasmid carrying functional operons for the degradation of two different classes of hydrocarbons was first described. In monosubstrate systems, 28.4% and 68.8% of decane and naphthalene, respectively, were biodegraded by the late stationary growth phase. In a bisubstrate system, these parameters were 25.4% and 20.8% by the end of the exponential growth phase. Then the biodegradation stopped, and the bacterial culture started dying due to the accumulation of salicylate (naphthalene-degradation metabolite), which is toxic in high concentrations. The activity of the salicylate oxidation enzymes was below the detection limit. These results indicate that the presence of decane and a high concentration of salicylate lead to impairment of hydrocarbon degradation by the strain.

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Section: Introductionmentioning

confidence: 99%

Pseudomonas veronii strain 7–41 degrading medium-chain n-alkanes and polycyclic aromatic hydrocarbons

Mullaeva

Delegan

Streletskii

et al. 2022

Sci Rep

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“…So what does the future of hydrocarbon research look like? Looking at the articles from the last decades, one might conclude that some studies will continue to be site-specific, focusing on high-risk sites [47,48], large-scale sites [48][49][50][51][52], or areas with extreme conditions [53][54][55][56][57]. Certainly, some articles will refer to laboratory experiments and the dynamics of reactions affecting the attenuation of hydrocarbons in soils and water [58][59][60].…”

Section: Introductionmentioning

confidence: 99%

A Critical Review of the Modelling Tools for the Reactive Transport of Organic Contaminants

Samborska-Goik,

Pogrzeba

2024

Applied Sciences

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The pollution of groundwater and soil by hydrocarbons is a significant and growing global problem. Efforts to mitigate and minimise pollution risks are often based on modelling. Modelling-based solutions for prediction and control play a critical role in preserving dwindling water resources and facilitating remediation. The objectives of this article are to: (i) to provide a concise overview of the mechanisms that influence the migration of hydrocarbons in groundwater and to improve the understanding of the processes that affect contamination levels, (ii) to compile the most commonly used models to simulate the migration and fate of hydrocarbons in the subsurface; and (iii) to evaluate these solutions in terms of their functionality, limitations, and requirements. The aim of this article is to enable potential users to make an informed decision regarding the modelling approaches (deterministic, stochastic, and hybrid) and to match their expectations with the characteristics of the models. The review of 11 1D screening models, 18 deterministic models, 7 stochastic tools, and machine learning experiments aimed at modelling hydrocarbon migration in the subsurface should provide a solid basis for understanding the capabilities of each method and their potential applications.

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“…This is particularly true in remote regions like the Canadian high Arctic, which lacks the necessary infrastructure to quickly respond to an oil spill. Although many oil cleanup strategies have been effective in various environments, the Arctic’s unique conditions make many methods inapplicable or expensive [ 6 ]. Severe weather conditions in the high Arctic region, such as extreme low temperatures, strong winds, and sea-ice movement [ 7 ], pose a safety risk to responding properly to an oil spill and effectively deploying cleanup strategies due to the costs of operating in such remote locations.…”

Section: Introductionmentioning

confidence: 99%

High Arctic seawater and coastal soil microbiome co-occurrence and composition structure and their potential hydrocarbon biodegradation

Freyria,

Góngora,

Greer

et al. 2024

ISME Communications

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The accelerated decline in Arctic sea-ice cover and duration is enabling the opening of Arctic marine passages and improving access to natural resources. The increasing accessibility to navigation and resource exploration and production brings risks of accidental hydrocarbon releases into Arctic waters, posing a major threat to Arctic marine ecosystems where oil may persist for many years, especially in beach sediment. The composition and response of the microbial community to oil contamination on Arctic beaches remain poorly understood. To address this, we analyzed microbial community structure and identified hydrocarbon degradation genes among the Northwest Passage intertidal beach sediments and shoreline seawater from five high Arctic beaches. Our results from 16S/18S rRNA genes, long-read metagenomes and metagenome-assembled genomes reveal the composition and metabolic capabilities of the hydrocarbon microbial degrader community, as well as tight cross-habitat and cross-kingdom interactions dominated by lineages that are common and often dominant in the polar coastal habitat, but distinct from petroleum hydrocarbon-contaminated sites. In the polar beach sediment habitats, Granulosicoccus sp. and Cyclocasticus sp. were major potential hydrocarbon-degraders, and our metagenomes revealed a small proportion of microalgae and algal viruses possessing key hydrocarbon biodegradative genes. This research demonstrates that Arctic beach sediment and marine microbial communities possess the ability for hydrocarbon natural attenuation. The findings provide new insights into the viral and microalgal community possessing hydrocarbon degradation genes and might represent an important contribution to the removal of hydrocarbon under harsh environmental conditions in a pristine, cold, and oil-free environment that is threatened by oil spills.

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Hydrocarbon bioremediation on Arctic shorelines: Historic perspective and roadway to the future

Cited by 14 publications

References 185 publications

Pseudomonas veronii strain 7–41 degrading medium-chain n-alkanes and polycyclic aromatic hydrocarbons

Pseudomonas veronii strain 7–41 degrading medium-chain n-alkanes and polycyclic aromatic hydrocarbons

A Critical Review of the Modelling Tools for the Reactive Transport of Organic Contaminants

High Arctic seawater and coastal soil microbiome co-occurrence and composition structure and their potential hydrocarbon biodegradation

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