Role of Microbes in the degradation of organic semivolatile compounds in polar ecosystems: A review

Egas, Claudia; Galbán-Malagón, Cristóbal; Castro-Nallar, Eduardo; Molina‐Montenegro, Marco A.

doi:10.1016/j.scitotenv.2023.163046

Cited by 5 publications

(2 citation statements)

References 179 publications

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“…Biodegradation of PAHs in the Antarctic region by native microorganisms is considered to be a cost-effective and sustainable approach for PAH contamination remediation 10 . Moreover, the introduction of nonindigenous microbes is not permitted in the Antarctic region 11 . Therefore, the identification of indigenous Antarctic microorganisms with PAH-degrading capabilities is essential for the bioremediation of contaminated Antarctic environments.…”

Section: Introductionmentioning

confidence: 99%

Pseudomonas and Pseudarthrobacter are the key players in synergistic phenanthrene biodegradation at low temperatures

Naloka,

Kuntaveesuk,

Muangchinda

et al. 2024

Sci Rep

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Hydrocarbon contamination, including contamination with polycyclic aromatic hydrocarbons (PAHs), is a major concern in Antarctica due to the toxicity, recalcitrance and persistence of these compounds. Under the Antarctic Treaty, nonindigenous species are not permitted for use in bioremediation at polluted sites in the Antarctic region. In this study, three bacterial consortia (C13, C15, and C23) were isolated from Antarctic soils for phenanthrene degradation. All isolated bacterial consortia demonstrated phenanthrene degradation percentages ranging from 45 to 85% for 50 mg/L phenanthrene at 15 ℃ within 5 days. Furthermore, consortium C13 exhibited efficient phenanthrene degradation potential across a wide range of environmental conditions, including different temperature (4–30 ℃) and water availability (without polyethylene glycol (PEG) 6000 or 30% PEG 6000 (w/v)) conditions. Sequencing analysis of 16S rRNA genes revealed that Pseudomonas and Pseudarthrobacter were the dominant genera in the phenanthrene-degrading consortia. Moreover, six cultivable strains were isolated from these consortia, comprising four strains of Pseudomonas, one strain of Pseudarthrobacter, and one strain of Paeniglutamicibacter. These isolated strains exhibited the ability to degrade 50 mg/L phenanthrene, with degradation percentages ranging from 4 to 22% at 15 ℃ within 15 days. Additionally, the constructed consortia containing Pseudomonas spp. and Pseudarthrobacter sp. exhibited more effective phenanthrene degradation (43–52%) than did the individual strains. These results provide evidence that Pseudomonas and Pseudarthrobacter can be potential candidates for synergistic phenanthrene degradation at low temperatures. Overall, our study offers valuable information for the bioremediation of PAH contamination in Antarctic environments.

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Section: Introductionmentioning

confidence: 99%

Pseudomonas and Pseudarthrobacter are the key players in synergistic phenanthrene biodegradation at low temperatures

Naloka,

Kuntaveesuk,

Muangchinda

et al. 2024

Sci Rep

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“…8,9 At present, the detection methodologies for SVOCs primarily lean upon GC and liquid chromatography-tandem mass spectrometry (LC-MS/ MS) analyses. 10 The pre-treatment methods for SVOCs in soil, such as PAHs, PCBs and PAEs, generally encompass the Soxhlet extraction, pressurized solvent extraction, and ultrasonic solvent extraction techniques. In the same vein, purication procedures predominantly involve solid-phase extraction and gel permeation chromatography.…”

Section: Introductionmentioning

confidence: 99%

Development and validation of an improved QuEChERS method for the extraction of semi-volatile organic compounds (SVOCs) from complex soils

Lou,

Wang,

Zhao

et al. 2023

Anal. Methods

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Exploration of the advantages of targeted isolation of deep-sea microorganisms and genetically engineered strains

Liu,

Feng,

et al. 2024

World J Microbiol Biotechnol

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Role of Microbes in the degradation of organic semivolatile compounds in polar ecosystems: A review

Cited by 5 publications

References 179 publications

Pseudomonas and Pseudarthrobacter are the key players in synergistic phenanthrene biodegradation at low temperatures

Pseudomonas and Pseudarthrobacter are the key players in synergistic phenanthrene biodegradation at low temperatures

Development and validation of an improved QuEChERS method for the extraction of semi-volatile organic compounds (SVOCs) from complex soils

Exploration of the advantages of targeted isolation of deep-sea microorganisms and genetically engineered strains

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