Degradative pathways of polycyclic aromatic hydrocarbons (PAHs) by Phanerochaete chrysosporium under optimum conditions

Abo-State, M. A. M.; Osman, Mohamed; Khattab, O. H.; El-Kelani, T. A.; Abdel-Rahman, Z. M.

doi:10.1080/16878507.2021.2001247

Cited by 10 publications

(4 citation statements)

References 39 publications

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“…In the present study, the results of HPLC analysis show that our Rhodococcus isolates are capable of bioremediation of a wide range of PAHs, phenol and sodium sulfate compounds, such as benzene and fluorine, and after the process, in addition to reducing the total amount of pollutants, they turn them into the water, carbon dioxide and relatively less dangerous compounds such as benzoic acid (Figures 3–5). This result was correlated with the results of other researchers such as Abo‐State et al (2021) and Shradha and Ankush (2010) studies, who also reported that Rhodococcus species could decompose phenol, oil and sulfate compounds into safe and low‐risk compounds.…”

Section: Discussionsupporting

confidence: 91%

Bioremediation of phenol, sulfate sodium, and polycyclic aromatic hydrocarbons by Rhodococcus sp. first time isolated and molecular characterized from aquatic and terrestrial ecosystems

Hosseini

Azadi

Absalan

2023

Water & Environment J

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Environmental pollutions are the most significant problem worldwide. Rhodococcus sp. has a high potential for the production of secondary metabolites and degradation activity. This study aims to screen and characterize biodegradable Rhodococcus from Iranian ecosystems. The Rhodococcus isolates were recovered from 90 environmental samples and identified using conventional and molecular methods. The growth rate in the presence of pollutants and chromatography (high‐performance liquid chromatography [HPLC]) was used to determine their biodegradation capability. A total of 13 Rhodococcus isolates were characterized from the cultured samples (14.5%) that belonged to seven species. The prevalent species were R. erythropolis (4 isolates; 30.8%), R. atherivorans (3 isolates; 23%), R. ruber (2 isolates; 15.4), and R. zopfii, R. phenolicus, R. equi and R. rhodochrous 1 isolate each. The result showed that these isolates could degrade and consume phenol, polycyclic aromatic hydrocarbon (PAH) and sulfate sodium. Our results showed that the Rhodococcus species have significant potential for bioremediation of diverse types of pollutants. Therefore, more studies are recommended for the biodegradation activity of Rhodococcus.

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Section: Discussionsupporting

confidence: 91%

Bioremediation of phenol, sulfate sodium, and polycyclic aromatic hydrocarbons by Rhodococcus sp. first time isolated and molecular characterized from aquatic and terrestrial ecosystems

Hosseini

Azadi

Absalan

2023

Water & Environment J

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“…The transformation of polyaromatic hydrocarbons by ligninolytic enzymes occurs via the production of hydroxyl free radicals through the donation of one electron, which oxidizes the PAH ring. As a consequence, acids and PAH-quinones are produced in place of dihydrodiols [ 44 ]. The mineralization of PAHs by ligninolytic fungi involves a combination of ligninolytic enzymes, cytochrome P450 monooxygenases, and epoxide hydrolases [ 43 ].…”

Section: Discussionmentioning

confidence: 99%

PUF-Immobilized Bjerkandera adusta DSM 3375 as a Tool for Bioremediation of Creosote Oil Contaminated Soil

Struszczyk‐Świta

Drożdżyński

Murawska

et al. 2022

IJMS

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Creosote oil, a byproduct of coal distillation, is primarily composed of aromatic compounds that are difficult to degrade, such as polycyclic aromatic hydrocarbons, phenolic compounds, and N-, S-, and O-heterocyclic compounds. Despite its toxicity and carcinogenicity, it is still often used to impregnate wood, which has a particularly negative impact on the condition of the soil in plants that impregnate wooden materials. Therefore, a rapid, effective, and eco-friendly technique for eliminating the creosote in this soil must be developed. The research focused on obtaining a preparation of Bjerkandera adusta DSM 3375 mycelium immobilized in polyurethane foam (PUF). It contained mold cells in the amount of 1.10 ± 0.09 g (DW)/g of the carrier. The obtained enzyme preparation was used in the bioremediation of soil contaminated with creosote (2% w/w). The results showed that applying the PUF-immobilized mycelium of B. adusta DSM 3375 over 5, 10, and 15 weeks of bioremediation, respectively, removed 19, 30, and 35% of creosote from the soil. After 15 weeks, a 73, 79, and 72% level of degradation of fluoranthene, pyrene, and fluorene, respectively, had occurred. The immobilized cells have the potential for large-scale study, since they can degrade creosote oil in soil.

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“…In the process of aerobic degradation, oxygen contributes to the ring-opening reaction of PAHs and acts as the terminal electron acceptor; during anaerobic degradation, nitrogen, sulfur, metal ions (iron and manganese), carbon dioxide, chlorate, and trimethylamine oxide can replace oxygen as the terminal electron acceptor [ 4 ]. The degradation of PAHs by bacteria is mainly through the metabolic pathway mediated by oxygenase (including monooxygenase or dioxygenase) under aerobic conditions [ 37 ]. The aerobic bacteria first hydroxylate the aromatic rings of PAHs through dioxygenases to generate cis-dihydrodiols.…”

Section: Methodsmentioning

confidence: 99%

Potential Toxicity Risk Assessment and Priority Control Strategy for PAHs Metabolism and Transformation Behaviors in the Environment

Zhao

Zhou

Zhao

et al. 2022

IJERPH

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In this study, 16 PAHs were selected as the priority control pollutants to summarize their environmental metabolism and transformation processes, including photolysis, plant degradation, bacterial degradation, fungal degradation, microalgae degradation, and human metabolic transformation. Meanwhile, a total of 473 PAHs by-products generated during their transformation and degradation in different environmental media were considered. Then, a comprehensive system was established for evaluating the PAHs by-products’ neurotoxicity, immunotoxicity, phytotoxicity, developmental toxicity, genotoxicity, carcinogenicity, and endocrine-disrupting effect through molecular docking, molecular dynamics simulation, 3D-QSAR model, TOPKAT method, and VEGA platform. Finally, the potential environmental risk (phytotoxicity) and human health risks (neurotoxicity, immunotoxicity, genotoxicity, carcinogenicity, developmental toxicity, and endocrine-disrupting toxicity) during PAHs metabolism and transformation were comprehensively evaluated. Among the 473 PAH’s metabolized and transformed products, all PAHs by-products excluding ACY, CHR, and DahA had higher neurotoxicity, 152 PAHs by-products had higher immunotoxicity, and 222 PAHs by-products had higher phytotoxicity than their precursors during biological metabolism and environmental transformation. Based on the TOPKAT model, 152 PAH by-products possessed potential developmental toxicity, and 138 PAH by-products had higher genotoxicity than their precursors. VEGA predicted that 247 kinds of PAH derivatives had carcinogenic activity, and only the natural transformation products of ACY did not have carcinogenicity. In addition to ACY, 15 PAHs produced 123 endocrine-disrupting substances during metabolism and transformation. Finally, the potential environmental and human health risks of PAHs metabolism and transformation products were evaluated using metabolic and transformation pathway probability and degree of toxic risk as indicators. Accordingly, the priority control strategy for PAHs was constructed based on the risk entropy method by screening the priority control pathways. This paper assesses the potential human health and environmental risks of PAHs in different environmental media with the help of models and toxicological modules for the toxicity prediction of PAHs by-products, and thus designs a risk priority control evaluation system for PAHs.

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Degradative pathways of polycyclic aromatic hydrocarbons (PAHs) by Phanerochaete chrysosporium under optimum conditions

Cited by 10 publications

References 39 publications

Bioremediation of phenol, sulfate sodium, and polycyclic aromatic hydrocarbons by Rhodococcus sp. first time isolated and molecular characterized from aquatic and terrestrial ecosystems

Bioremediation of phenol, sulfate sodium, and polycyclic aromatic hydrocarbons by Rhodococcus sp. first time isolated and molecular characterized from aquatic and terrestrial ecosystems

PUF-Immobilized Bjerkandera adusta DSM 3375 as a Tool for Bioremediation of Creosote Oil Contaminated Soil

Potential Toxicity Risk Assessment and Priority Control Strategy for PAHs Metabolism and Transformation Behaviors in the Environment

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