A novel degradation mechanism of naphthenic acids by marine Pseudoalteromonas sp.

Zan, Shuaijun; Wang, Jing; Wang, Fengbo; Li, Zelong; Du, Miaomiao; Cai, Yingxue

doi:10.1016/j.jhazmat.2021.127534

Cited by 10 publications

(2 citation statements)

References 47 publications

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“…Frontiers in Environmental Science frontiersin.org 13 which consist of medium-chain alkenes, can be completely biodegraded. However, crude oil from heavy asphalticnaphthenic acid may be degraded with low efficiency by several microbial species, but some novel strains, such as Pseudoalteromonas sp., can effectively degrade it under anaerobic conditions (Zan et al, 2022).…”

Section: Substrate Properties and Concentrationmentioning

confidence: 99%

Bioremediation of petroleum hydrocarbon contaminated soil: a review on principles, degradation mechanisms, and advancements

Mekonnen,

Aragaw,

Genet

2024

Front. Environ. Sci.

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Petroleum hydrocarbons (PHCs) are key energy sources for several industries and daily life. Soil contamination from oily PHC spills is commonly detected in cities and industrial facilities where crude oil is used. The release of PHC pollutants into the environment, whether accidentally from petroleum industries or human activities, has become a leading source of soil pollution. Consequently, the mineralization of PHC-polluted sites has become a central issue worldwide. Although bioremediation is imperative for environmental safety and management, several approaches have been developed for PHC bioremediation. However, much remains to be explored in this regard. This review explores bioremediation of PHC-contaminated soil and provides a comprehensive examination of the principles, degradation mechanisms, and recent advancements in the field. Several microbial species have been used to study the bioremediation of PHCs, emphasizing the pivotal roles of diverse microbial communities. Aspergillus spp., Proteobacteria, and Firmicutes groups of microorganisms were the most efficient in remediating PHC-contaminated soil. The fundamental concepts behind the bioremediation of PHC and the complex mechanisms that govern degradation were elucidated. Limiting factors in the bioremediation process and recent innovations propelling the field were also discussed. Therefore, understanding the degradation pathway, ensuring complete degradation of contaminants, and flexible legislation for the proper use of genetically engineered microbes can make bioremediation more sustainable and cost-effective.

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Section: Substrate Properties and Concentrationmentioning

confidence: 99%

Bioremediation of petroleum hydrocarbon contaminated soil: a review on principles, degradation mechanisms, and advancements

Mekonnen,

Aragaw,

Genet

2024

Front. Environ. Sci.

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“…This literature review indicated that beta-oxidation is a common pathway in aerobic NA degradation. Various transformation steps can occur prior to beta-oxidation, such as alpha-oxidation (Rontani and Bonin 1992 ), omega-oxidation (Johnson et al 2012 ), aromatization (Iwaki et al 2005 ), activation as coenzyme A (CoA) thioesters (Zampolli et al 2020 , Zan et al 2022 ), or ring cleavage (Wang et al 2015 ). Anaerobic NA degradation has also been reported, and was proposed to involve several possible mechanisms, including the production of benzoyl-CoA as an intermediate (Pelletier and Harwood 2000 , Elshahed et al 2001 , Peters et al 2004 ), beta-oxidation (Arslan and Gamal El-Din 2021 , Sanz and Díaz 2022 ), and/or through the involvement of nitrate, sulfate, iron, and methanogenic reducers (Holowenko et al 2001 , Gunawan et al 2014 , Clothier and Gieg 2016 , Cheng et al 2019 ).…”

Section: Proposed Metabolic Pathways and Genes Involved In The Microb...mentioning

confidence: 99%

Microbial degradation of naphthenic acids using constructed wetland treatment systems: metabolic and genomic insights for improved bioremediation of process-affected water

Reis,

Correa-Garcia,

Tremblay

et al. 2023

FEMS Microbiology Ecology

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Naphthenic acids (NAs) are a complex mixture of organic compounds released during bitumen extraction from mined oil sands that are important contaminants of oil sands process-affected water (OSPW). NAs can be toxic to aquatic organisms and, therefore, are a main target compound for OSPW. The ability of microorganisms to degrade NAs can be exploited for bioremediation of OSPW using constructed wetland treatment systems (CWTS), which represent a possible low energy and low-cost option for scalable in situ NA removal. Recent advances in genomics and analytical chemistry have provided insights into a better understanding of the metabolic pathways and genes involved in NA degradation. Here, we discuss the ecology of microbial NA degradation with a focus on CWTS and summarize the current knowledge related to the metabolic pathways and genes used by microorganisms to degrade NAs. Evidence to date suggests that NAs are mostly degraded aerobically through ring cleavage via the beta-oxidation pathway, which can be combined with other steps such as aromatization, alpha-oxidation, omega-oxidation, or activation as coenzyme A (CoA) thioesters. Anaerobic NA degradation has also been reported via the production of benzoyl-CoA as an intermediate and/or through the involvement of methanogens or nitrate, sulfate, and iron reducers. Furthermore, we discuss how genomic, statistical, and modeling tools can assist in the development of improved bioremediation practices.

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Microbial Biodegradation and Metagenomics in Remediation of Environmental Pollutants: Enzymes and Mechanisms

Harirchi

Rafieyan

Nojoumi

et al. 2022

Omics Insights in Environmental Bioremediation

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A novel degradation mechanism of naphthenic acids by marine Pseudoalteromonas sp.

Cited by 10 publications

References 47 publications

Bioremediation of petroleum hydrocarbon contaminated soil: a review on principles, degradation mechanisms, and advancements

Bioremediation of petroleum hydrocarbon contaminated soil: a review on principles, degradation mechanisms, and advancements

Microbial degradation of naphthenic acids using constructed wetland treatment systems: metabolic and genomic insights for improved bioremediation of process-affected water

Microbial Biodegradation and Metagenomics in Remediation of Environmental Pollutants: Enzymes and Mechanisms

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