Specific enrichment of hydrocarbonclastic bacteria from diesel-amended soil on biochar particles

Assil, Zhansaya; Esegbue, Onoriode; Mašek, Ondřej; Gutiérrez, Tony; Free, Andrew

doi:10.1016/j.scitotenv.2020.143084

Cited by 14 publications

(5 citation statements)

References 78 publications

(92 reference statements)

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“…Fang et al 10.3389/fmicb.2024.1343366 Frontiers in Microbiology 12 frontiersin.org phyla were relatively abundant: Acidobacteriota, which may be related to soil organic matter content (Shelyakin et al, 2022); Gemmatimonadota, which participates in the detoxification and degradation of organic pollutants and has a high tolerance to organic pollutants (Zhang et al, 2022); and Actinobacteriota, which has been reported as one of the most common bacteria in oil-contaminated soils (Egorova et al, 2023). At the genus level, Cavicella with the high relative abundance in this study, is a recently discovered genus that is more likely to be enriched in crude oil-contaminated soils or diesel-contaminated soils and may contain novel petroleum hydrocarbon-degrading bacteria (Xue et al, 2020;Assil et al, 2021). C1_B045 is still poorly documented although it has been detected in some oil pollution studies (Teske et al, 2022).…”

Section: Discussionmentioning

confidence: 77%

“…At the genus level, Cavicella with the high relative abundance in this study, is a recently discovered genus that is more likely to be enriched in crude oil-contaminated soils or diesel-contaminated soils and may contain novel petroleum hydrocarbon-degrading bacteria ( Xue et al, 2020 ; Assil et al, 2021 ). C1_B045 is still poorly documented although it has been detected in some oil pollution studies ( Teske et al, 2022 ).…”

Section: Discussionmentioning

confidence: 94%

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Biochar-bacteria-plant combined potential for remediation of oil-contaminated soil

Fang,

Zhang,

Zheng

et al. 2024

Front. Microbiol.

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Oil pollution is a common type of soil organic pollution that is harmful to the ecosystem. Bioremediation, particularly microbe-assisted phytoremediation of oil-contaminated soil, has become a research hotspot in recent years. In order to explore more appropriate bioremediation strategies for soil oil contamination and the mechanism of remediation, we compared the remediation effects of three plants when applied in combination with a microbial agent and biochar. The combined remediation approach of Tagetes erecta, microbial agent, and biochar exhibited the best plant growth and the highest total petroleum hydrocarbons degradation efficiency (76.60%). In addition, all of the remediation methods provided varying degrees of restoration of carbon and nitrogen contents of soils. High-throughput sequencing found that microbial community diversity and richness were enhanced in most restored soils. Some soil microorganisms associated with oil degradation and plant growth promotion such as Cavicella, C1_B045, Sphingomonas, MND1, Bacillus and Ramlibacter were identified in this study, among which Bacillus was the major component in the microbial agent. Bacillus was positively correlated with all soil remediation indicators tested and was substantially enriched in the rhizosphere of T. erecta. Functional gene prediction of the soil bacterial community based on the KEGG database revealed that pathways of carbohydrate metabolism and amino acid metabolism were up-regulated during remediation of oil-contaminated soils. This study provides a potential method for efficient remediation of oil-contaminated soils and thoroughly examines the biochar–bacteria–plant combined remediation mechanisms of oil-contaminated soil, as well as the combined effects from the perspective of soil bacterial communities.

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Section: Discussionmentioning

confidence: 77%

Section: Discussionmentioning

confidence: 94%

Biochar-bacteria-plant combined potential for remediation of oil-contaminated soil

Fang,

Zhang,

Zheng

et al. 2024

Front. Microbiol.

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“…At day 7, the relative abundance of these genera slightly decreases and they are outperformed by Aquabacterium , which is the most abundant genus. Aquabacterium has been identified as an oil degrader [ 57 ], and was strongly stimulated by diesel in a previous incubation study [ 58 ]. Another enriched genus at day 7, Novosphingobium , was also observed in high abundance in a diesel-related microbiology study [ 59 ].…”

Section: Discussionmentioning

confidence: 99%

Succession Patterns of Microbial Composition and Activity following the Diesel Spill in an Urban River

Yang

Peng

et al. 2023

Microorganisms

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Diesel spills in freshwater systems have adverse impacts on the water quality and the shore wetland. Microbial degradation is the major and ultimate natural mechanism that can clean the diesel from the environment. However, which, and how fast, diesel-degrading microorganisms could degrade spilled diesel has not been well-documented in river water. Using a combination of 14C-/3H--based radiotracer assays, analytical chemistry, MiSeq sequencing, and simulation-based microcosm incubation approaches, we demonstrated succession patterns of microbial diesel-degrading activities, and bacterial and fungal community compositions. The biodegradation activities of alkanes and polycyclic aromatic hydrocarbons (PAHs) were induced within 24 h after diesel addition, and reached their maximum after incubation for 7 days. Potential diesel-degrading bacteria Perlucidibaca, Acinetobacter, Pseudomonas, Acidovorax, and Aquabacterium dominated the community initially (day 3 and day 7), but later community structure (day 21) was dominated by bacteria Ralstonia and Planctomyces. The key early fungi responders were Aspergillus, Mortierella, and Phaeoacremonium by day 7, whereas Bullera and Basidiobolus dominated the fungal community at day 21. These results directly characterize the rapid response of microbial community to diesel spills, and suggest that the progression of diesel microbial degradation is performed by the cooperative system of the versatile obligate diesel-degrading and some general heterotrophic microorganisms in river diesel spills.

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“…Members of the genus Phenylobacterium were found to be enriched in soil after plastic mulching treatments (Luo et al, 2022) and these bacteria are capable of degrading polycyclic aromatic hydrocarbons (Yang et al, 2014). Only for Cavicella a link to MP materials in soils has not be described, but the genus is known as hydrocarbonoclastic (Assil et al, 2021) and has at least the potential to utilize the carbon of the MP materials.…”

Section: Especiallymentioning

confidence: 99%

Microplastics in soil induce a new microbial habitat, with consequences for bulk soil microbiomes

Kublik

Gschwendtner

Magritsch

et al. 2022

Front. Environ. Sci.

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Microplastic (MP) pollution poses a threat to agricultural soils and may induce a significant loss of the soil quality and services provided by these ecosystems. Studies in marine environments suggest that this impact is mediated by shifts in the microbiome. However, studies on the mode of action of MP materials on the soil microbiome are rare, particularly when comparing the effects of different MP materials. In this study, we characterized the microbiota colonizing two different MP materials, granules made of polypropylene (PP) and expanded polystyrene (ePS), introduced into arable soil and incubated for 8 weeks using a molecular barcoding approach. We further assessed the consequences on the microbiome of bulk soil. The complexity of the bacterial communities colonizing MP materials was significantly higher on ePS compared to PP. Many of the detected genera colonizing the MP materials belonged to taxa, that are known to degrade polymeric substances, including TM7a, Phenylobacterium, Nocardia, Arthrobacter and Streptomyces. Interestingly, in bulk soil samples amended with MP materials, microbial diversity was higher after 8 weeks compared to the control soil, which was incubated without MP materials. The composition of bacterial communities colonizing the MP materials and bulk soil differed. Mainly Acidobacteria were mostly found in bulk soil, whereas they were rare colonizers of the MP materials. Differences in diversity and community composition between the MP affected bulk soil samples were not found. Overall, our data indicate that MP materials form a new niche for microbes in soil, with a specific community composition depending on the materials used, strongly influencing the bulk soil microbiota in the short term. Long-term consequences for the soil microbiome and associated functions including different soils need to be further elaborated in the future for a proper risk assessment of the mode of action of MP materials in terrestrial ecosystems.

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Specific enrichment of hydrocarbonclastic bacteria from diesel-amended soil on biochar particles

Cited by 14 publications

References 78 publications

Biochar-bacteria-plant combined potential for remediation of oil-contaminated soil

Biochar-bacteria-plant combined potential for remediation of oil-contaminated soil

Succession Patterns of Microbial Composition and Activity following the Diesel Spill in an Urban River

Microplastics in soil induce a new microbial habitat, with consequences for bulk soil microbiomes

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