Synergistic Effect of Rhamnolipids and Inoculation on the Bioremediation of Petroleum-Contaminated Soils by Bacterial Consortia

Xue, Shuwen; Huang, Chao; Tian, Yanan; Li, Yanbing; Li, Jing; Ma, Yi

doi:10.1007/s00284-020-01899-3

Cited by 15 publications

(7 citation statements)

References 38 publications

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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: 73%

“…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: 92%

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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: 73%

Section: Discussionmentioning

confidence: 92%

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

Fang,

Zhang,

Zheng

et al. 2024

Front. Microbiol.

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“…4; ASV-9), which becomes common in contaminated samples from day 37 onwards, shows 100% identity to the same Cavicella strain. This genus has recently been reported to be elevated in soils in response to crude oil contamination (Xue et al, 2020), suggesting that it contains novel hydrocarbonoclastic bacteria. Both ASVs are also abundant in inocula derived from contaminated soil (Fig.…”

Section: Taxa Specifically Selected By Diesel Contaminationmentioning

confidence: 99%

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

Assil

Esegbue

Mašek

et al. 2021

Science of The Total Environment

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HIGHLIGHTS• Biochar was evaluated for the biostimulation of hydrocarbon contaminated soils.• Amplicon sequence variants (ASVs) reveal specific soil microbial responses to oil.• Oil amplifies 13 ASVs -putative hydrocarbon degraders -to high relative abundance.• Standard biochars reduce soil diversity loss and are enriched in oil-selected ASVs.• Biochar enriched with endogenous microbes is a promising approach to bioremediation.

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“…Biosurfactants can increase the degradation rate of alkane degraders [ 133 , 134 ]. Isolation and identification of a surfactant-producing bacteria from the environment has, therefore, become an area of interest for researchers.…”

Section: Microbial Communitymentioning

confidence: 99%

Bioengineering for the Microbial Degradation of Petroleum Hydrocarbon Contaminants

2023

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Petroleum hydrocarbons are relatively recalcitrant compounds, and as contaminants, they are one of the most serious environmental problems. n-Alkanes are important constituents of petroleum hydrocarbons. Advances in synthetic biology and metabolic engineering strategies have made n-alkane biodegradation more designable and maneuverable for solving environmental pollution problems. In the microbial degradation of n-alkanes, more and more degradation pathways, related genes, microbes, and alkane hydroxylases have been discovered, which provide a theoretical basis for the further construction of degrading strains and microbial communities. In this review, the current advances in the microbial degradation of n-alkanes under aerobic condition are summarized in four aspects, including the biodegradation pathways and related genes, alkane hydroxylases, engineered microbial chassis, and microbial community. Especially, the microbial communities of “Alkane-degrader and Alkane-degrader” and “Alkane-degrader and Helper” provide new ideas for the degradation of petroleum hydrocarbons. Surfactant producers and nitrogen providers as a “Helper” are discussed in depth. This review will be helpful to further achieve bioremediation of oil-polluted environments rapidly.

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Synergistic Effect of Rhamnolipids and Inoculation on the Bioremediation of Petroleum-Contaminated Soils by Bacterial Consortia

Cited by 15 publications

References 38 publications

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

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

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

Bioengineering for the Microbial Degradation of Petroleum Hydrocarbon Contaminants

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