Properties affecting transfer and expression of degradative plasmids for the purpose of bioremediation

Varner, Paige M.; Gunsch, Claudia K.

doi:10.1007/s10532-021-09950-1

Cited by 4 publications

(3 citation statements)

References 92 publications

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“…Environmental This biodegradation process involves a succession of enzymatic metabolic steps, primarily encoded on plasmids [69,70]. Plasmids are essential for breaking down complex hydrocarbon molecules [71]. Diverse enzyme systems orchestrate the degradation of petroleum hydrocarbons, typically initiated by (a) microbial cell attachment to substrates and (b) the synthesis of biopolymers, acids, solvents, and gases [72].…”

Section: Bioremediation Of Petroleum Hydrocarbons: a Green Solutionmentioning

confidence: 99%

Advancing Eco-Sustainable Bioremediation for Hydrocarbon Contaminants: Challenges and Solutions

Alaidaroos

2023

Processes

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In an era of rising population density and industrialization, the environment confronts growing challenges. Soil, agricultural land, and water bodies are becoming increasingly polluted by petroleum waste and hydrocarbons. While hydrocarbons are naturally present in crude oil, refining processes compound the complexity and toxicity of hydrocarbons. This is particularly evident in polycyclic aromatic hydrocarbons (PAHs) found in the air and soil, known for their carcinogenic, mutagenic, and teratogenic properties. In response, biodegradation emerges as an eco-friendly, cost-effective solution, especially in petroleum-contaminated settings. Biodiverse microbial communities play a pivotal role in managing hydrocarbon contamination, contingent on location, toxicity, and microbial activity. To optimize biodegradation, understanding its mechanisms is essential. This review delves into varied bioremediation techniques, degradation pathways, and the contributions of microbial activities to efficiently removing hydrocarbon pollutants. Recent research spotlights specific microorganisms like bacteria, microalgae, and fungi adept at hydrocarbon degradation, offering a contemporary perspective on petroleum hydrocarbon pollutant bioremediation. These microorganisms efficiently break down petroleum hydrocarbons, with enzymatic catalysis markedly accelerating pollutant breakdown compared to conventional methods. Given the intricate nature of hydrocarbon contamination, cooperative bacterial consortia are instrumental in effective cleanup, driven by specific genes guiding bacterial metabolism. For cost-effective and efficient removal from compromised environments, it is advisable to adopt an integrated approach that combines biostimulation and bioaugmentation.

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Section: Bioremediation Of Petroleum Hydrocarbons: a Green Solutionmentioning

confidence: 99%

Advancing Eco-Sustainable Bioremediation for Hydrocarbon Contaminants: Challenges and Solutions

Alaidaroos

2023

Processes

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“…Biodegradation of pollutants includes successive metabolic processes by enzymes, and the microorganisms for biodegradation are encoded on plasmids for most enzymes [47,48]. Plasmids are necessary to break down hydrocarbons, particularly complex molecules [49,50]. Various enzyme systems can mediate the degradation and decomposition of petroleum hydrocarbons, which are typically the first attack with the mechanisms of (a) binding of microbial cells to the underlying layers and (b) production of biomaterials, biologically active substances or biopolymers, solvents, gases, and acids [51,52].…”

Section: Bioremediation Of Petroleum Hydrocarbonsmentioning

confidence: 99%

Bioremediation Treatment of Polyaromatic Hydrocarbons for Environmental Sustainability

Salari

Rahmanian

Hashemi

et al. 2022

Water

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Polycyclic aromatic hydrocarbons (PAHs) distributed in air and soil are harmful because of their carcinogenicity, mutagenicity, and teratogenicity. Biodegradation is an environmentally friendly and economical approach to control these types of contaminants and has become an essential method for remediating environments contaminated with petroleum hydrocarbons. The bacteria are isolated and identified using a mineral nutrient medium containing PAHs as the sole source of carbon and energy and biochemical differential tests. Thus, this study focuses on some bacteria and fungi that degrade oil and hydrocarbons. This study provides a comprehensive, up-to-date, and efficient overview of petroleum hydrocarbon contaminant bioremediation considering hydrocarbon modification by microorganisms, emphasizing the new knowledge gained in recent years. The study shows that petroleum hydrocarbon contaminants are acceptably biodegradable by some microorganisms, and their removal by this method is cost-effective. Moreover, microbial biodegradation of petroleum hydrocarbon contaminants utilizes the enzymatic catalytic activities of microorganisms and increases the degradation of pollutants several times compared to conventional methods. Biological treatment is carried out in two ways: microbial stimulation and microbial propagation. In the first method, the growth of indigenous microorganisms in the area increases, and the pollution is eliminated. In the second method, on the other hand, there are no effective microorganisms in the area, so these microorganisms are added to the environment.

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“…Twelve genes were found to be involved in the chemotaxis of G7 which supports previous studies ( 3 – 5 ). Additionally, multiple Type IV pilus assembly proteins were identified which might aid in the conjugation/transfer of the NAH7 plasmid harbored in G7, making G7 attractive for its potential to be used in genetic bioaugmentation schemes for remediation of polycyclic aromatic hydrocarbons ( 12 ).…”

Section: Announcementmentioning

confidence: 99%

Complete Genome Sequence of NAH7-Harboring Pseudomonas putida Strain G7

Varner

Gunsch

2022

Microbiol Resour Announc

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Properties affecting transfer and expression of degradative plasmids for the purpose of bioremediation

Cited by 4 publications

References 92 publications

Advancing Eco-Sustainable Bioremediation for Hydrocarbon Contaminants: Challenges and Solutions

Advancing Eco-Sustainable Bioremediation for Hydrocarbon Contaminants: Challenges and Solutions

Bioremediation Treatment of Polyaromatic Hydrocarbons for Environmental Sustainability

Complete Genome Sequence of NAH7-Harboring Pseudomonas putida Strain G7

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