Petroleum contamination significantly changes soil microbial communities in three oilfield locations in Delta State, Nigeria

Mafiana, Macdonald Ogorm; Kang, Xin; He, Lingxiao; Li, Shi-Weng

doi:10.1007/s11356-021-12955-1

Cited by 20 publications

(5 citation statements)

References 90 publications

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“…Our results indicate that seep soils were a more specific habitat for microorganisms belonging to the Smithella and KCM ‐ B‐112 genera since they were abundant only in this soil type. The role of bacteria belonging to the KCM‐B‐112 genus in hydrocarbon transformation is already unknown; however, they are abundant members of community related to other long‐term contaminated soils (Zheng et al, 2018; Mafiana et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

How do microbial communities deal with chronic hydrocarbon presence in oil seep soils? Data from historical hand‐dug oil wells

et al. 2022

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Hand‐dug oil wells, located in natural crude oil seep sites, are remnants of historical exploitation activities. Hydrocarbon pollution is regarded as the threat to soil ecosystem. On the other hand, there is no common environmental policies regarding these soils. The hypothesis was that natural attenuation processes might occur in seep soils since a diversified and stable bacterial community structure should be a result of its long‐term (thousands of years) adaptation to hydrocarbon exposure and should be associated with eventual utilization of these compounds. To obtained this goal, we compared the structure, composition, and hydrocarbon‐degrading potential of bacterial communities inhabiting soils with different hydrocarbon contents (seep, hydrocarbon‐impacted, pristine soils), which were collected in two habitats (forest, meadow). 16S rRNA sequencing and isolation of hydrocarbon degraders were performed. The contaminant's presence shaped distinct and unique community structure and composition, and it enhanced physiologically and functionally adapted microorganisms. The most abundant community members were bacteria revealing a strong contribution in genetic potential toward aerobic hydrocarbon transformation (i.e., Mycobacterium/Mycolicibacterium and Pseudomonas). The strong hydrocarbon degraders population suggests that natural biodegradation occurs in situ in seeps and mitigates the pollution impact on adjacent soils. Seep and hydrocarbon‐impacted soils are a great source for remedial bacterial populations. Twenty‐four genera of degraders were isolated; however, strains belonging to the Mycobacterium/Mycolicibacterium, Rhodococcus, and Pseudomonas taxa were common. Our results underline the need to include undervalued microbiological aspects in remediation projects' guidelines for chronically polluted environments. The knowledge regarding seep communities should help to evaluate more efficient remediation strategies for anthropogenic spills.

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Section: Discussionmentioning

confidence: 99%

How do microbial communities deal with chronic hydrocarbon presence in oil seep soils? Data from historical hand‐dug oil wells

et al. 2022

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“…In our experiment, the structure of communities has changed as well, i.e., the contribution of k strategist bacteria (slowly-growing ones) and r strategist fungi (rapidly growing ones) increased. The changes triggered by petrol in the structure of soil bacteria communities stem from the different resistance of individual species to its toxic effect [ 12 , 43 , 66 , 70 ] and from the diversified possibilities of utilizing its hydrocarbons as sources of carbon, hydrogen, and energy [ 71 ].…”

Section: Discussionmentioning

confidence: 99%

“…Both the soil microorganisms and the enzymes they produce are sensitive to varying environmental conditions [ 41 , 42 , 43 , 44 ]. They faithfully reproduce the condition of the soil environment; therefore, the microbiological and biochemical indicators cannot be neglected in soil quality evaluation [ 6 , 13 , 30 , 45 ].…”

Section: Introductionmentioning

confidence: 99%

“…The stability of microorganisms is disturbed in such an environment [ 41 , 57 ]. Soil pollution with petroleum-derived products induces stress in microbial communities that require long adaptation periods [ 43 , 58 ]. According to Borowik et al [ 59 ], diesel oil triggered greater changes in the soil microbiome than unleaded petrol.…”

Section: Introductionmentioning

confidence: 99%

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Microbiological Study in Petrol-Spiked Soil

2021

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The pollution of arable lands and water with petroleum-derived products is still a valid problem, mainly due the extensive works aimed to improve their production technology to reduce fuel consumption and protect engines. An example of the upgraded fuels is the BP 98 unleaded petrol with Active technology. A pot experiment was carried out in which Eutric Cambisol soil was polluted with petrol to determine its effect on the microbiological and biochemical properties of this soil. Analyses were carried out to determine soil microbiome composition—with the incubation and metagenomic methods, the activity of seven enzymes, and cocksfoot effect on hydrocarbon degradation. The following indices were determined: colony development index (CD); ecophysiological diversity index (EP); index of cocksfoot effect on soil microorganisms and enzymes (IFG); index of petrol effect on soil microorganisms and enzymes (IFP); index of the resistance of microorganisms, enzymes, and cocksfoot to soil pollution with petrol (RS); Shannon–Weaver’s index of bacterial taxa diversity (H); and Shannon–Weaver’s index of hydrocarbon degradation (IDH). The soil pollution with petrol was found to increase population numbers of bacteria and fungi, and Protebacteria phylum abundance as well as to decrease the abundance of Actinobacteria and Acidobacteria phyla. The cultivation of cocksfoot on the petrol-polluted soil had an especially beneficial effect mainly on the bacteria belonging to the Ramlibacter, Pseudoxanthomonas, Mycoplana, and Sphingobium genera. The least susceptible to the soil pollution with petrol and cocksfoot cultivation were the bacteria of the following genera: Kaistobacter, Rhodoplanes, Bacillus, Streptomyces, Paenibacillus, Phenylobacterium, and Terracoccus. Cocksfoot proved effective in the phytoremediation of petrol-polluted soil, as it accelerated hydrocarbon degradation and increased the genetic diversity of bacteria. It additionally enhanced the activities of soil enzymes.

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“…Petroleum waste hydrocarbons contaminated soils may lose their functions i.e., soil fertility, porosity, regulation of water supply, degradation of decayed material, and providing habitat to microorganisms. Contaminated soils may lose or threaten several microbial species, which will ultimately affect the biodiversity of soil microorganisms ( Mafiana et al., 2021 ). Ren et al.…”

Section: Impacts Of Petroleum Waste Contaminationmentioning

confidence: 99%

Composition, impacts, and removal of liquid petroleum waste through bioremediation as an alternative clean-up technology: A review

Sattar¹,

Hussain²,

Shah³

et al. 2022

Heliyon

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Petroleum contamination significantly changes soil microbial communities in three oilfield locations in Delta State, Nigeria

Cited by 20 publications

References 90 publications

How do microbial communities deal with chronic hydrocarbon presence in oil seep soils? Data from historical hand‐dug oil wells

How do microbial communities deal with chronic hydrocarbon presence in oil seep soils? Data from historical hand‐dug oil wells

Microbiological Study in Petrol-Spiked Soil

Composition, impacts, and removal of liquid petroleum waste through bioremediation as an alternative clean-up technology: A review

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