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Yang J, Ren B, Cai H, Xiong W, Feng J, Fan Q, Li Z, Huang L, Yan C, Li Y, Chen C, Shen Z. Cyclic catalysis of intratumor Fe 3+/2+ initiated by a hollow mesoporous iron sesquioxide nanoparticle for ferroptosis therapy of large tumors. Biomaterials 2025; 313:122793. [PMID: 39226655 DOI: 10.1016/j.biomaterials.2024.122793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 07/30/2024] [Accepted: 08/29/2024] [Indexed: 09/05/2024]
Abstract
Numerous nanoparticles have been utilized to deliver Fe2+ for tumor ferroptosis therapy, which can be readily converted to Fe3+via Fenton reactions to generate hydroxyl radical (•OH). However, the ferroptosis therapeutic efficacy of large tumors is limited due to the slow conversion of Fe3+ to Fe2+via Fenton reactions. Herein, a strategy of intratumor Fe3+/2+ cyclic catalysis is proposed for ferroptosis therapy of large tumors, which was realized based on our newly developed hollow mesoporous iron sesquioxide nanoparticle (HMISN). Cisplatin (CDDP) and Gd-poly(acrylic acid) macrochelates (GP) were loaded into the hollow core of HMISN, whose surface was modified by laccase (LAC). Fe3+, CDDP, GP, and LAC can be gradually released from CDDP@GP@HMISN@LAC in the acidic tumor microenvironment. The intratumor O2 can be catalyzed into superoxide anion (O2•-) by LAC, and the intratumor NADPH oxidases can be activated by CDDP to generate O2•-. The O2•- can react with Fe3+ to generate Fe2+, and raise H2O2 level via the superoxide dismutase. The generated Fe2+ and H2O2 can be fast converted into Fe3+ and •OH via Fenton reactions. The cyclic catalysis of intratumor Fe3+/2+ initiated by CDDP@GP@HMISN@LAC can be used for ferroptosis therapy of large tumors.
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Affiliation(s)
- Jing Yang
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 1023 Shatai South Road, Baiyun, Guangzhou, Guangdong, 510515, China
| | - Bin Ren
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 1023 Shatai South Road, Baiyun, Guangzhou, Guangdong, 510515, China
| | - Haobin Cai
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 1023 Shatai South Road, Baiyun, Guangzhou, Guangdong, 510515, China
| | - Wei Xiong
- Medical Imaging Center, Nanfang Hospital, Southern Medical University, 1023 Shatai South Road, Baiyun, Guangzhou, Guangdong, 510515, China
| | - Jie Feng
- Medical Imaging Center, Nanfang Hospital, Southern Medical University, 1023 Shatai South Road, Baiyun, Guangzhou, Guangdong, 510515, China
| | - Qingdeng Fan
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 1023 Shatai South Road, Baiyun, Guangzhou, Guangdong, 510515, China
| | - Zongheng Li
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 1023 Shatai South Road, Baiyun, Guangzhou, Guangdong, 510515, China
| | - Lin Huang
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 1023 Shatai South Road, Baiyun, Guangzhou, Guangdong, 510515, China
| | - Chenggong Yan
- Medical Imaging Center, Nanfang Hospital, Southern Medical University, 1023 Shatai South Road, Baiyun, Guangzhou, Guangdong, 510515, China
| | - Yan Li
- Institute of Medical Instruments, School of Biomedical Engineering, Southern Medical University, 1023 Shatai South Road, Baiyun, Guangzhou, Guangdong, 510515, China.
| | - Chaomin Chen
- Institute of Medical Instruments, School of Biomedical Engineering, Southern Medical University, 1023 Shatai South Road, Baiyun, Guangzhou, Guangdong, 510515, China.
| | - Zheyu Shen
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, 1023 Shatai South Road, Baiyun, Guangzhou, Guangdong, 510515, China.
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张 玮, 邓 蒙, 曾 尧, 刘 辰, 尚 菲, 许 文, 蒋 昊, 王 凤, 杨 燕. [2, 6-dimethoxy-1, 4-benzoquinone alleviates septic shock in mice by inhibiting NLRP3 inflammasome activation]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2024; 44:1024-1032. [PMID: 38977331 PMCID: PMC11237302 DOI: 10.12122/j.issn.1673-4254.2024.06.02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Indexed: 07/10/2024]
Abstract
OBJECTIVE To investigate the mechanism of 2, 6-dimethoxy-1, 4-benzoquinone (DMQ), an active ingredients in fermented wheat germ extract, for inhibiting NLRP3 inflammasome activation and alleviating septic shock in mice. METHODS Cultured murine bone marrow-derived macrophages (BMDM) stimulated with lipopolysaccharide (LPS) were treated with DMQ, followed by treatment with Nigericin, ATP, and MSU for activating the canonical NLRP3 inflammasome; the noncanonical NLRP3 inflammasome was activated by intracellular transfection of LPS, and AIM2 inflammasome was activated using Poly A: T.In human monocytic THP-1 cells, the effect of Nigericin on inflammasome activation products was examined using Western blotting and ELISA.Co-immunoprecipitation was performed to explore the mechanism of DMQ-induced blocking of NLRP3 inflammasome activation.In a male C57BL/6J mouse model of LPS-induced septic shock treated with 20 and 40 mg/kg DMQ, the levels of IL-1β and TNF-α in the serum and peritoneal lavage fluid were determined using ELISA, and the survival time of the mice within 36 h was observed. RESULTS Treatment with DMQ effectively inhibited LPS-induced activation of canonical NLRP3 inflammasome in mouse BMDM and human THP-1 cells and also inhibited non-canonical NLRP3 inflammasome activation in mouse BMDM, but produced no significant effect on AIM2 inflammasome activation.DMQ significantly blocked the binding between ASC and NLRP3.In the mouse models of septic shock, DMQ treatment significantly reduced the levels of IL-1β in the serum and peritoneal fluid and obviously prolonged survival time of the mice. CONCLUSION DMQ can effectively block ASC-NLRP3 interaction to inhibit NLRP3 inflammasome activation and alleviate LPSinduced septic shock in mice.
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Grąz M. Role of oxalic acid in fungal and bacterial metabolism and its biotechnological potential. World J Microbiol Biotechnol 2024; 40:178. [PMID: 38662173 PMCID: PMC11045627 DOI: 10.1007/s11274-024-03973-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 03/29/2024] [Indexed: 04/26/2024]
Abstract
Oxalic acid and oxalates are secondary metabolites secreted to the surrounding environment by fungi, bacteria, and plants. Oxalates are linked to a variety of processes in soil, e.g. nutrient availability, weathering of minerals, or precipitation of metal oxalates. Oxalates are also mentioned among low-molecular weight compounds involved indirectly in the degradation of the lignocellulose complex by fungi, which are considered to be the most effective degraders of wood. The active regulation of the oxalic acid concentration is linked with enzymatic activities; hence, the biochemistry of microbial biosynthesis and degradation of oxalic acid has also been presented. The potential of microorganisms for oxalotrophy and the ability of microbial enzymes to degrade oxalates are important factors that can be used in the prevention of kidney stone, as a diagnostic tool for determination of oxalic acid content, as an antifungal factor against plant pathogenic fungi, or even in efforts to improve the quality of edible plants. The potential role of fungi and their interaction with bacteria in the oxalate-carbonate pathway are regarded as an effective way for the transfer of atmospheric carbon dioxide into calcium carbonate as a carbon reservoir.
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Affiliation(s)
- Marcin Grąz
- Department of Biochemistry and Biotechnology, Institute of Biological Sciences, Maria Curie-Skłodowska University, Akademicka 19, 20-033, Lublin, Poland.
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Ren M, Bai Y, Su J, Min Y, Wang Y, Ali A. Immobilized bioreactor for enhanced ammonia, phosphorus, and phenol removal and effects of phenol on microbial communities, potential functions, and nitrogen metabolism. BIORESOURCE TECHNOLOGY 2024; 393:130161. [PMID: 38065515 DOI: 10.1016/j.biortech.2023.130161] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/03/2023] [Accepted: 12/04/2023] [Indexed: 01/18/2024]
Abstract
In the present study, an immobilized bioreactor was established to remove ammonia (NH4+-N), phosphate (PO43--P), and phenol using composite mycelium spheres (CMP) as the immobilization material in combination with Pseudomonas sp. Y1. Under optimal operating conditions, the bioreactor achieved 98.07, 91.71, and 92.57 % removal of NH4+-N, PO43--P, and phenol, respectively. The results showed that the bioreactor removed PO43--P by biomineralization and co-precipitation. Phenol removal relied on a Fenton-like reaction achieved by CMP-induced quinone redox cycling. High-throughput sequencing analysis and functional gene prediction indicated that Pseudomonas was the dominant genus and that the bioreactor had much potential for nitrogen removal, respectively. In addition, phenol affected the performance of functional genes and the associated enzymes, which influenced the nitrogen metabolism process in the bioreactor. This work serves as a guideline for the development of more stable and sustainable composite pollution removal technologies and fungal-bacterial symbiotic systems.
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Affiliation(s)
- Miqi Ren
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Yihan Bai
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Junfeng Su
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Yitian Min
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Yue Wang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Amjad Ali
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
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García-Martín AB, Rodríguez J, Molina-Guijarro JM, Fajardo C, Domínguez G, Hernández M, Guillén F. Induction of Extracellular Hydroxyl Radicals Production in the White-Rot Fungus Pleurotus eryngii for Dyes Degradation: An Advanced Bio-oxidation Process. J Fungi (Basel) 2024; 10:52. [PMID: 38248961 PMCID: PMC10821177 DOI: 10.3390/jof10010052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/26/2023] [Accepted: 01/03/2024] [Indexed: 01/23/2024] Open
Abstract
Among pollution remediation technologies, advanced oxidation processes (AOPs) are genuinely efficient since they are based on the production of strong, non-selective oxidants, mainly hydroxyl radicals (·OH), by a set of physicochemical methods. The biological counterparts of AOPs, which may be referred to as advanced bio-oxidation processes (ABOPs), have begun to be investigated since the mechanisms of induction of ·OH production in fungi are known. To contribute to the development of ABOPs, advanced oxidation of a wide number of dyes by the white-rot fungus Pleurotus eryngii, via a quinone redox cycling (QRC) process based on Fenton's reagent formation, has been described for the first time. The fungus was incubated with 2,6-dimethoxy-1,4-benzoquinone (DBQ) and Fe3+-oxalate, with and without Mn2+, leading to different ·OH production rates, around twice higher with Mn2+. Thanks to this process, the degradative capacity of the fungus increased, not only oxidising dyes it was not otherwise able to, but also increasing the decolorization rate of 20 dyes by more than 7 times in Mn2+ incubations. In terms of process efficacy, it is noteworthy that with Mn2+ the degradation of the dyes reached values of 90-100% in 2-4 h, which are like those described in some AOPs based on the Fenton reaction.
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Affiliation(s)
| | | | | | | | | | | | - Francisco Guillén
- Department of Biomedicine and Biotechnology, Universidad de Alcalá, 28805 Alcalá de Henares, Spain; (A.B.G.-M.); (J.R.); (J.M.M.-G.); (C.F.); (G.D.); (M.H.)
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Min Y, Xu L, Su J, Ma J, Ali A, Li X. Enhanced ammonia nitrogen and phenol removal by immobilized bacteria through composite mycelium pellet-driven quinone redox cycle. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 345:118893. [PMID: 37688959 DOI: 10.1016/j.jenvman.2023.118893] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/20/2023] [Accepted: 08/27/2023] [Indexed: 09/11/2023]
Abstract
The composite mycelium pellet (CMP) was coupled with Pseudomonas sp. Y1 (CMP-Y1) to remove phenol and ammonia nitrogen (NH4+-N). The CMP was formed by the self-assembly of fungal mycelium with sponge iron (SIO), gallic acid (GA), and oxalic acid. The results showed that CMP with abundant pore size and successful internal loading of sponge iron containing iron nanoparticles. CMP could induce GA redox cycle to form Fenton-like reaction and thus achieve efficient phenol removal (93.32%, 24 h). Meanwhile, the removal efficiencies of phenol, NH4+-N, and chemical oxygen demand (COD) using CMP-Y1 at 12 h were 93.71, 92.40, and 89.00%, respectively. The increase in the electron transfer activity of strain Y1 by the addition of CMP could facilitate the nitrogen removal processes. In addition, high-throughput sequencing results indicated the abundance of antioxidant and repair genes was increased, which might be a strategy of strain Y1 to cope with oxidative stress. This strategy provided the possibility for the practical application of the combination of advanced oxidation and biological treatment, and offered new insights into the symbiotic system of fungi and bacteria.
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Affiliation(s)
- Yitian Min
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Liang Xu
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Junfeng Su
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
| | - Jiayao Ma
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Amjad Ali
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Xuan Li
- College of Environmental Science & Engineering, Yancheng Institute of Technology, Yancheng, 224051, China
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Sun S, Li F, Li M, Zhang W, Jiang Z, Zhao H, Pu Y, Ragauskas AJ, Dai SY, Zhang X, Yu H, Yuan JS, Xie S. Lytic polysaccharide monooxygenase synergized with lignin-degrading enzymes for efficient lignin degradation. iScience 2023; 26:107870. [PMID: 37766973 PMCID: PMC10520884 DOI: 10.1016/j.isci.2023.107870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 05/09/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
Even though the discovery of lytic polysaccharide monooxygenases (LPMOs) has fundamentally shifted our understanding of biomass degradation, most of the current studies focused on their roles in carbohydrate oxidation. However, no study demonstrated if LPMO could directly participate to the process of lignin degradation in lignin-degrading microbes. This study showed that LPMO could synergize with lignin-degrading enzymes for efficient lignin degradation in white-rot fungi. The transcriptomics analysis of fungi Irpex lacteus and Dichomitus squalens during their lignocellulosic biomass degradation processes surprisingly highlighted that LPMOs co-regulated with lignin-degrading enzymes, indicating their more versatile roles in the redox network. Biochemical analysis further confirmed that the purified LPMO from I. lacteus CD2 could use diverse electron donors to produce H2O2, drive Fenton reaction, and synergize with manganese peroxidase for lignin oxidation. The results thus indicated that LPMO might uniquely leverage the redox network toward dynamic and efficient degradation of different cell wall components.
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Affiliation(s)
- Su Sun
- Department of Biotechnology, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
- College of Urban Construction, Wuchang Shouyi University, Wuhan 430064, China
| | - Fei Li
- Department of Biotechnology, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
- Department of Bioengineering, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Muzi Li
- Department of Biotechnology, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
- Texas A&M Agrilife Synthetic, Systems Biology Innovation Hub, Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX 77843, USA
| | - Wenqian Zhang
- Texas A&M Agrilife Synthetic, Systems Biology Innovation Hub, Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX 77843, USA
| | - Zhenxiong Jiang
- Texas A&M Agrilife Synthetic, Systems Biology Innovation Hub, Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX 77843, USA
| | - Honglu Zhao
- Department of Biotechnology, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yunqiao Pu
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Arthur J. Ragauskas
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- Department of Chemical and Biomolecular Engineering, Department of Forestry, Wildlife, and Fisheries, University of Tennessee, Knoxville, TN 37996, USA
| | - Susie Y. Dai
- Texas A&M Agrilife Synthetic, Systems Biology Innovation Hub, Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX 77843, USA
| | - Xiaoyu Zhang
- Department of Biotechnology, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Hongbo Yu
- Department of Biotechnology, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Joshua S. Yuan
- Department of Energy, Environmental, and Chemical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Shangxian Xie
- Department of Biotechnology, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
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Timilsina A, Lokesh S, Shahriar A, Numan T, Yang Y. Quantification of Quinones in Environmental Media by Chemical Tagging with Cysteine-Containing Peptides Coupled to Size Exclusionary Separation. Anal Chem 2023; 95:12575-12579. [PMID: 37540203 DOI: 10.1021/acs.analchem.3c01224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
Quinones are one of the most important redox-reactive organic compounds in natural environments, such as soil, water, and sediment, playing an important role in regulating the environmental processes and biogeochemical cycles of critical elements under climate change, including the influences of extreme events such as wildfires. However, to date, no existing methods can quantify quinones in complex environmental media. To overcome this challenge, a quantification method was developed by coupling chemical tagging of quinones by cysteine-containing nonaromatic peptides (Cpep) through a Michael addition reaction with size exclusionary chromatography (SEC) separation and ultraviolet (UV) analysis─leveraging on the characteristic absorbance of aromatic rings at 254 nm and molecular size of peptide. The method was demonstrated using model quinones, including 1,4-benzoquinone (BQ), 1,4-naphthoquinone (NQ), and 1,4-anthraquinone (AQ), with a detection limit of 3.3, 0.7, and 0.2 μM, respectively. Concentrations of quinones in water extractions of biochars, soils, and wildfire-derived ashes were determined to range from 0.8 to 14 μM and were positively correlated with their redox reactivity determined by a chemical assay. This method provides a novel rapid quantification of quinones in complex environmental media as well as a quick assessment for redox reactivity and opens up new avenues for studying environmental transformation and remediation of contaminants.
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Affiliation(s)
- Anil Timilsina
- Department of Civil and Environmental Engineering, University of Nevada, Reno, 1664 N. Virginia Street, Reno, Nevada 89557, United States
| | - Srinidhi Lokesh
- Department of Civil and Environmental Engineering, University of Nevada, Reno, 1664 N. Virginia Street, Reno, Nevada 89557, United States
| | - Abrar Shahriar
- Department of Civil and Environmental Engineering, University of Nevada, Reno, 1664 N. Virginia Street, Reno, Nevada 89557, United States
| | - Travis Numan
- Department of Civil and Environmental Engineering, University of Nevada, Reno, 1664 N. Virginia Street, Reno, Nevada 89557, United States
| | - Yu Yang
- Department of Civil and Environmental Engineering, University of Nevada, Reno, 1664 N. Virginia Street, Reno, Nevada 89557, United States
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Amobonye A, Aruwa CE, Aransiola S, Omame J, Alabi TD, Lalung J. The potential of fungi in the bioremediation of pharmaceutically active compounds: a comprehensive review. Front Microbiol 2023; 14:1207792. [PMID: 37502403 PMCID: PMC10369004 DOI: 10.3389/fmicb.2023.1207792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 06/12/2023] [Indexed: 07/29/2023] Open
Abstract
The ability of fungal species to produce a wide range of enzymes and metabolites, which act synergistically, makes them valuable tools in bioremediation, especially in the removal of pharmaceutically active compounds (PhACs) from contaminated environments. PhACs are compounds that have been specifically designed to treat or alter animal physiological conditions and they include antibiotics, analgesics, hormones, and steroids. Their detrimental effects on all life forms have become a source of public outcry due their persistent nature and their uncontrolled discharge into various wastewater effluents, hospital effluents, and surface waters. Studies have however shown that fungi have the necessary metabolic machinery to degrade PhACs in complex environments, such as soil and water, in addition they can be utilized in bioreactor systems to remove PhACs. In this regard, this review highlights fungal species with immense potential in the biodegradation of PhACs, their enzymatic arsenal as well as the probable mechanism of biodegradation. The challenges encumbering the real-time application of this promising bioremediative approach are also highlighted, as well as the areas of improvement and future perspective. In all, this paper points researchers to the fact that fungal bioremediation is a promising strategy for addressing the growing issue of pharmaceutical contamination in the environment and can help to mitigate the negative impacts on ecosystems and human health.
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Affiliation(s)
- Ayodeji Amobonye
- School of Industrial Technology, Universiti Sains Malaysia, Penang, Malaysia
| | - Christiana E. Aruwa
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, Durban, South Africa
| | - Sesan Aransiola
- Bioresources Development Centre, National Biotechnology Development Agency, P.M.B. Onipanu, Ogbomosho, Nigeria
| | - John Omame
- National Environmental Standards and Regulations Enforcement Agency, Lagos Field Office, Lagos, Nigeria
| | - Toyin D. Alabi
- Department of Life Sciences, Baze University, Abuja, Nigeria
| | - Japareng Lalung
- School of Industrial Technology, Universiti Sains Malaysia, Penang, Malaysia
- Centre for Global Sustainability Studies, Universiti Sains Malaysia, Penang, Malaysia
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Ferreira P, Carro J, Balcells B, Martínez AT, Serrano A. Expanding the Physiological Role of Aryl-Alcohol Flavooxidases as Quinone Reductases. Appl Environ Microbiol 2023; 89:e0184422. [PMID: 37154753 DOI: 10.1128/aem.01844-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023] Open
Abstract
Aryl-alcohol oxidases (AAOs) are members of the glucose-methanol-choline oxidase/dehydrogenase (GMC) superfamily. These extracellular flavoproteins have been described as auxiliary enzymes in the degradation of lignin by several white-rot basidiomycetes. In this context, they oxidize fungal secondary metabolites and lignin-derived compounds using O2 as an electron acceptor, and supply H2O2 to ligninolytic peroxidases. Their substrate specificity, including mechanistic aspects of the oxidation reaction, has been characterized in Pleurotus eryngii AAO, taken as a model enzyme of this GMC superfamily. AAOs show broad reducing-substrate specificity in agreement with their role in lignin degradation, being able to oxidize both nonphenolic and phenolic aryl alcohols (and hydrated aldehydes). In the present work, the AAOs from Pleurotus ostreatus and Bjerkandera adusta were heterologously expressed in Escherichia coli, and their physicochemical properties and oxidizing abilities were compared with those of the well-known recombinant AAO from P. eryngii. In addition, electron acceptors different from O2, such as p-benzoquinone and the artificial redox dye 2,6-Dichlorophenolindophenol, were also studied. Differences in reducing-substrate specificity were found between the AAO enzymes from B. adusta and the two Pleurotus species. Moreover, the three AAOs oxidized aryl alcohols concomitantly with the reduction of p-benzoquinone, with similar or even higher efficiencies than when using their preferred oxidizing-substrate, O2. IMPORTANCE In this work, quinone reductase activity is analyzed in three AAO flavooxidases, whose preferred oxidizing-substrate is O2. The results presented, including reactions in the presence of both oxidizing substrates-benzoquinone and molecular oxygen-suggest that such aryl-alcohol dehydrogenase activity, although less important than its oxidase activity in terms of maximal turnover, may have a physiological role during fungal decay of lignocellulose by the reduction of quinones (and phenoxy radicals) from lignin degradation, preventing repolymerization. Moreover, the resulting hydroquinones would participate in redox-cycling reactions for the production of hydroxyl free radical involved in the oxidative attack of the plant cell-wall. Hydroquinones can also act as mediators for laccases and peroxidases in lignin degradation in the form of semiquinone radicals, as well as activators of lytic polysaccharide monooxygenases in the attack of crystalline cellulose. Moreover, reduction of these, and other phenoxy radicals produced by laccases and peroxidases, promotes lignin degradation by limiting repolymerization reactions. These findings expand the role of AAO in lignin biodegradation.
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Affiliation(s)
- Patricia Ferreira
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Ciencias, Universidad de Zaragoza, Zaragoza, Spain
- Instituto de Biocomputación y Física de Sistemas Complejos, BIFI (GBsC-CSIC Joint Unit), Universidad de Zaragoza, Zaragoza, Spain
| | - Juan Carro
- Centro de Investigaciones Biológicas "Margarita Salas", CSIC, Madrid, Spain
| | - Beatriz Balcells
- Centro de Investigaciones Biológicas "Margarita Salas", CSIC, Madrid, Spain
| | - Angel T Martínez
- Centro de Investigaciones Biológicas "Margarita Salas", CSIC, Madrid, Spain
| | - Ana Serrano
- Centro de Investigaciones Biológicas "Margarita Salas", CSIC, Madrid, Spain
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Zhang T, Chen Y, Wang T, Liu C, He D, Liu B, Liu Y. Efficient removal of petroleum hydrocarbons from soil by percarbonate with catechin-promoted Fe(III)/Fe(II) redox cycling: Activation of ferrous and roles of ·OH and ·CO 3. JOURNAL OF HAZARDOUS MATERIALS 2023; 448:130875. [PMID: 36731317 DOI: 10.1016/j.jhazmat.2023.130875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 01/12/2023] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
Advanced oxidation processes are widely used to remove petroleum hydrocarbons from soil, but usually consume large quantities of ferrous and acidify the soil. This study tested an advanced oxidation approach based on percarbonate in laboratory experiments. It removed 88% petroleum hydrocarbons in soil with a pH increase from 8.2 to 10.2. ·OH and ·CO3- were the main reactive species, and degraded 41% and 37% PHCs from soil respectively. The o-dihydroxybenzene structure in catechin was found to reduce ferric to ferrous, and prolong the generation of ·OH from 120 s to over 1800 s. The petroleum hydrocarbons were degraded to intermediates including alkanes and olefins through hydrogen-abstraction by ·OH and ·CO3-, and by dimerization and β-scission of alkyl radicals. These intermediates were then oxidized to CO2 and H2O by ·OH and ·CO3-. The main residual intermediates in the soil were low-molecular-weight n-alkanes and branched alkanes, and they were found to inhibit the growth of oats (Avena sativa L.) much less than the original petroleum hydrocarbons. These findings provide a fundamental basis for designing effective technologies which use percarbonate to remove organic pollutants.
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Affiliation(s)
- Tong Zhang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400044, China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
| | - Yuan Chen
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400044, China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
| | - Tao Wang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400044, China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
| | - Chang Liu
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400044, China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
| | - Dan He
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400044, China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
| | - Bin Liu
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400044, China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
| | - Yuanyuan Liu
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400044, China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China.
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12
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Chen S, Zhu M, Guo X, Yang B, Zhuo R. Coupling of Fenton reaction and white rot fungi for the degradation of organic pollutants. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 254:114697. [PMID: 36889210 DOI: 10.1016/j.ecoenv.2023.114697] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 02/25/2023] [Indexed: 06/18/2023]
Abstract
Advanced oxidation processes (AOPs) are a class of highly efficient pollution remediation technologies that produce oxidising radicals under specific conditions to degrade organic pollutants. The Fenton reaction is a commonly applied AOP. To combine the advantages of AOPs and biodegradation in the remediation of organic pollutants, some studies have developed coupled systems between Fenton AOPs and white rot fungi (WRF) for environmental organic pollutant remediation and have achieved some success. Moreover, a promising system, termed as advanced bio-oxidation processes (ABOPs), mediated by the quinone redox cycling of WRF, has attracted increasing attention in the field. In this ABOP system, the radicals and H2O2 produced through the quinone redox cycling of WRF can strengthen Fenton reaction. Meanwhile, in this process, the reduction of Fe3+ to Fe2+ ensures the maintenance of Fenton reaction, leading to a promising application potential for the remediation of environmental organic pollutants. ABOPs combine the advantages of bioremediation and advanced oxidation remediation. Further understanding the coupling of Fenton reaction and WRF in the degradation of organic pollutants will be of great significance for the remediation of organic pollutants. Therefore, in this study, we reviewed recent remediation techniques for organic pollutants involving the coupled application of WRF and the Fenton reaction, focusing on the application of new ABOPs mediated by WRF, and discussed the reaction mechanism and conditions of ABOPs. Finally, we discussed the application prospects and future research directions of the joint application of WRF and advanced oxidation technologies for the remediation of environmental organic pollutants.
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Affiliation(s)
- Shuxian Chen
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha 410082, PR China
| | - Mingdong Zhu
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha 410082, PR China; Key Laboratory of Indica Rice Genetics and Breeding in the Middle and Lower Reaches of Yangtze River Valley, Hunan Rice Research Institute, Changsha 410125, PR China
| | - Xiayu Guo
- National Center of Technology Innovation for Saline-Alkali Tolerant Rice in Sanya, Sanya 572000, PR China; State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha 410125, PR China
| | - Bentao Yang
- Zhongye Changtian International Engineering Co., Ltd., Changsha 410205, PR China.
| | - Rui Zhuo
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha 410082, PR China.
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13
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Mohammadi SA, Najafi H, Zolgharnian S, Sharifian S, Asasian-Kolur N. Biological oxidation methods for the removal of organic and inorganic contaminants from wastewater: A comprehensive review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 843:157026. [PMID: 35772531 DOI: 10.1016/j.scitotenv.2022.157026] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 06/03/2022] [Accepted: 06/24/2022] [Indexed: 06/15/2023]
Abstract
Enzyme-based bioremediation is a simple, cost-effective, and environmentally friendly method for isolating and removing a wide range of environmental pollutants. This study is a comprehensive review of recent studies on the oxidation of pollutants by biological oxidation methods, performed individually or in combination with other methods. The main bio-oxidants capable of removing all types of pollutants, such as organic and inorganic molecules, from fungi, bacteria, algae, and plants, and different types of enzymes, as well as the removal mechanisms, were investigated. The use of mediators and modification methods to improve the performance of microorganisms and their resistance under harsh real wastewater conditions was discussed, and numerous case studies were presented and compared. The advantages and disadvantages of conventional and novel immobilization methods, and the development of enzyme engineering to adjust the content and properties of the desired enzymes, were also explained. The optimal operating parameters such as temperature and pH, which usually lead to the best performance, were presented. A detailed overview of the different combination processes was also given, including bio-oxidation in coincident or consecutive combination with adsorption, advanced oxidation processes, and membrane separation. One of the most important issues that this study has addressed is the removal of both organic and inorganic contaminants, taking into account the actual wastewaters and the economic aspect.
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Affiliation(s)
- Seyed Amin Mohammadi
- Fouman Faculty of Engineering, College of Engineering, University of Tehran, Fouman 43581-39115, Iran
| | - Hanieh Najafi
- Fouman Faculty of Engineering, College of Engineering, University of Tehran, Fouman 43581-39115, Iran
| | - Sheida Zolgharnian
- TUM Campus Straubing for Biotechnology and Sustainability, Technical University of Munich, Schulgasse 16, 94315 Straubing, Germany
| | - Seyedmehdi Sharifian
- Fouman Faculty of Engineering, College of Engineering, University of Tehran, Fouman 43581-39115, Iran
| | - Neda Asasian-Kolur
- Fouman Faculty of Engineering, College of Engineering, University of Tehran, Fouman 43581-39115, Iran.
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14
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Chen Z, Chen Z, Sun H, Xing R, Zhou S. Degradation of microplastics by hydroxyl radicals generated during microbially driven humus redox transformation. WATER RESEARCH 2022; 221:118731. [PMID: 35738060 DOI: 10.1016/j.watres.2022.118731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/06/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
The production of ·OH during transformation of redox active substances has been increasingly documented, and it causes the ageing or degradation of microplastics (MPs) in natural systems. However, the contribution of the humus redox cycle to ·OH generation and MPs transformation has previously been overlooked, even though it is ubiquitous in alternating anoxic-oxic environments. In this work, the integrated pathways of ·OH generation during the redox transformation of humic acids (HAs) and the contribution of this ·OH to the transformation of MPs were investigated for the first time. It was found that ·OH could be produced continuously during successive cycles of redox transformation of HAs mediated by Bacillus thermotolerans SgZ-8 through exogeneous HAs dependent and independent pathways. O2·- and H2O2 were identified as the key intermediate species, which were produced by both microbial aerobic respiration and HA oxidation. The ·OH generated by HA redox cycles could lead to a weight loss of PS-MPs of 18.1% through oxidative degradation during a period of 8 weeks of anoxic-oxic incubation. The EDC of HAs is closely related to ·OH production, which could have a large influence on the effectiveness of oxidative degradation of PS-MPs during various HAs redox cycles in temporarily anoxic environmental systems. These findings provide new insights into ·OH formation and MPs transformation through microbially driven humus redox cycles in alternating anoxic-oxic environments.
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Affiliation(s)
- Zhi Chen
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zewei Chen
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Hanyue Sun
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ruizhi Xing
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Shungui Zhou
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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15
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Role of quinone reductases in extracellular redox cycling in lichenized ascomycetes. Fungal Biol 2021; 125:879-885. [PMID: 34649674 DOI: 10.1016/j.funbio.2021.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 05/25/2021] [Accepted: 06/01/2021] [Indexed: 11/24/2022]
Abstract
Our previous work showed that many lichenized Ascomycetes can generate hydroxyl radicals using quinone-based extracellular redox cycling. During cycling, hydroquinones must be formed and subsequently regenerated from quinones using a quinone reductase (QR). However, we also showed that no simple correlation exists between QR activity and rates of hydroxyl radical formation. To further investigate the role of QR in hydroxyl radical formation, three model lichen species, Leptogium furfuraceum, Lasallia pustulata and Peltigera membranacea were selected for further investigation. All possessed QR activity and could metabolize quinones, and both Leptogium furfuraceum and Lasallia pustulata actively produced hydroxyl radicals. By contrast, P. membranacea produced almost no hydroxyl radicals, and although the lichen readily metabolized quinones, no hydroquinone production was detected. Peltigera had laccase (LAC) activity that was c. 50 times higher than in the other two species, suggesting that LAC rapidly oxidizes the hydroquinones, preventing radical formation deriving from auto-oxidation. It appears that in some lichens hydroxyl radical formation is blocked by the presence of high redox enzyme activity. QR from P. didactyla was studied further and found to display similar properties to the enzyme from free-living fungi, although it possessed an unusually high molecular mass (c. 62 kDa).
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16
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El-Aziz ARMA, Al-Othman MR, Hisham SM, Shehata SM. Evaluation of crude oil biodegradation using mixed fungal cultures. PLoS One 2021; 16:e0256376. [PMID: 34437564 PMCID: PMC8389457 DOI: 10.1371/journal.pone.0256376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 08/04/2021] [Indexed: 11/21/2022] Open
Abstract
The use of potent fungal mixed cultures is a promising technique for the biodegradation of crude oil. Four isolates of fungi, namely, Alternaria alternata (AA-1), Aspergillus flavus (AF-3), Aspergillus terreus (AT-7), and Trichoderma harzianum (TH-5), were isolated from date palm soil in Saudi Arabia. The mixed fungal of the four isolates have a powerful tool for biodegradation up to 73.6% of crude oil (1%, w/v) in 14 days. The fungal consortium no. 15 containing the four isolates (1:1:1:1) performed significantly better as a biodegradation agent than other consortium in a variety of environmental factors containing crude oil concentration, incubation temperature, initial pH, biodegradation time and the salinity of the medium. The fungal consortium showed better performance in the biodegradation of normal alkanes (n-alkanes) than that of the polycyclic aromatic hydrocarbons (PAHs); the biodegradation efficiency of normal alkanes of the fungal consortium (67.1%) was clearly high than that of the PAHs (56.8%).
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Affiliation(s)
- Abeer R. M. Abd El-Aziz
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
- * E-mail:
| | - Monira R. Al-Othman
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Sameh M. Hisham
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Shereen M. Shehata
- Pharmaceutical Chemistry Department, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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17
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Zhou TJ, Xu Y, Xing L, Wang Y, Jiang HL. A Harmless-Harmful Switchable and Uninterrupted Laccase-Instructed Killer for Activatable Chemodynamic Therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2100114. [PMID: 34062021 DOI: 10.1002/adma.202100114] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 03/31/2021] [Indexed: 06/12/2023]
Abstract
Chemodynamic therapy (CDT) employs Fenton catalysts to kill cancer cells by converting intracellular hydrogen peroxide (H2 O2 ) into hydroxyl radicals (OH•). Although many studies on H2 O2 supplementation have been conducted to improve the therapeutic effect of CDT, few studies have focused on the application of superoxide radical (O2 -• ) in CDT, which may result in better efficacy. A major concern about O2 -• -mediated CDT is its tendency to induce serious oxidative damage to normal tissues, which may be addressed by using a degradable O2 -• scavenger. Here, a harmless-harmful switchable and uninterrupted laccase (LAC)-instructed killer (HULK) is constructed, which is the first CDT agent accelerated by LAC-instructed O2 -• generation and possesses a harmless-harmful switchable effect because of the photodegradation of the O2 -• scavenger iron-chlorin e6 (FeCe6). LAC-instructed substrate oxidation effectively catalyzes O2 -• production with the help of intracellular reduction, thereby promoting the conversion of Fe3+ to Fe2+ , accelerating the generation of OH•, and inducing tumor cell apoptosis and necrosis. The introduced O2 -• scavenger FeCe6 is quickly photodegraded during irradiation, while LAC-instructed O2 -• generation proceeds as before, resulting in activatable CDT. This work not only provides the first strategy for LAC-instructed O2 -• generation but also presents new insight into activatable CDT.
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Affiliation(s)
- Tian-Jiao Zhou
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Yuan Xu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Lei Xing
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals, China Pharmaceutical University, Nanjing, 210009, China
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, China Pharmaceutical University, Nanjing, 210009, China
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing, 210009, China
| | - Yi Wang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Hu-Lin Jiang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals, China Pharmaceutical University, Nanjing, 210009, China
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, China Pharmaceutical University, Nanjing, 210009, China
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing, 210009, China
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18
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Li F, Zhang J, Ma F, Chen Q, Xiao Q, Zhang X, Xie S, Yu H. Lytic polysaccharide monooxygenases promote oxidative cleavage of lignin and lignin-carbohydrate complexes during fungal degradation of lignocellulose. Environ Microbiol 2021; 23:4547-4560. [PMID: 34169632 DOI: 10.1111/1462-2920.15648] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/16/2021] [Accepted: 06/17/2021] [Indexed: 01/06/2023]
Abstract
Overcoming lignocellulosic biomass recalcitrance, especially the cleavage of cross-linkages in lignin-carbohydrate complexes (LCCs) and lignin, is essential for both the carbon cycle and industrial biorefinery. Lytic polysaccharide monooxygenases (LPMOs) are copper-containing enzymes that play a key role in fungal polysaccharide oxidative degradation. Nevertheless, comprehensive analysis showed that LPMOs from a white-rot fungus, Pleurotus ostreatus, correlated well with the Fenton reaction and were involved in the degradation of recalcitrant nonpolysaccharide fractions in this research. Thus, LPMOs participated in the extracellular Fenton reaction by enhancing iron reduction in quinone redox cycling. A Fenton reaction system consisting of LPMOs, hydroquinone, and ferric iron can efficiently produce hydroxy radicals and then cleave LCCs or lignin linkages. This finding indicates that LPMOs are underestimated auxiliary enzymes in eliminating biomass recalcitrance.
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Affiliation(s)
- Fei Li
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jialong Zhang
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Fuying Ma
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Qing Chen
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Qiuyun Xiao
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xiaoyu Zhang
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Shangxian Xie
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Hongbo Yu
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
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19
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Li F, Zhao H, Shao R, Zhang X, Yu H. Enhanced Fenton Reaction for Xenobiotic Compounds and Lignin Degradation Fueled by Quinone Redox Cycling by Lytic Polysaccharide Monooxygenases. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:7104-7114. [PMID: 34130454 DOI: 10.1021/acs.jafc.1c01684] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The Fenton reaction is considered to be of great significance in the initial attack of lignocellulose in wood-decaying fungi. Quinone redox cycling is the main way to induce the Fenton reaction in fungi. We show that lytic polysaccharide monooxygenases (LPMOs), through LPMO-catalyzed oxidation of hydroquinone, can efficiently cooperate with glucose dehydrogenase (GDH) to achieve quinone redox cycling. The LPMO/GDH system can enhance Fe3+-reducing activity, H2O2 production, and hydroxyl radical generation, resulting in a fueled Fenton reaction. The system-generated hydroxyl radicals exhibited a strong capacity to decolorize different synthetic dyes and degrade lignin. Our results reveal a potentially critical connection between LPMOs and the Fenton reaction, suggesting that LPMOs could be involved in xenobiotic compound and lignin degradation in fungi. This new role of LPMOs may be exploited for application in biorefineries.
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Affiliation(s)
- Fei Li
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Honglu Zhao
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Ruijian Shao
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xiaoyu Zhang
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Hongbo Yu
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
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20
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Mycoremediation of Soils Polluted with Trichloroethylene: First Evidence of Pleurotus Genus Effectiveness. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11041354] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Trichloroethylene (TCE) is a proven carcinogenic chlorinated organic compound widely used as a solvent in industrial cleaning solutions; it is easily found in the soil, air, and water and is a hazardous environmental pollutant. Most studies have attempted to remove TCE from air and water using different anaerobic bacteria species. In addition, a few have used white-rot fungi, although there are hardly any in soil. The objective of the present work is to assess TCE removal efficiency using two species of the genus Pleurotus that have not been tested before: Pleurotus ostreatus and Pleurotus eryngii, growing on a sandy loam soil. These fungi presented different intra- and extracellular enzymatic systems (chytochrome P450 (CYP450), laccase, Mn peroxidase (MnP)) capable of aerobically degrading TCE to less harmful compounds. The potential toxicity of TCE to P. ostreatus and P. eryngii was firstly tested in a TCE-spiked liquid broth (70 mg L−1 and 140 mg L−1) for 14 days. Then, both fungi were assessed for their ability to degrade the pollutant in sandy loam soil spiked with 140 mg kg−1 of TCE. P. ostreatus and P. eryngii improved the natural dissipation of TCE from soil by 44%. Extracellular enzymes were poorly expressed, but mainly in the presence of the contaminant, in accordance with the hypothesis of the involvement of CYP450.
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21
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Schlosser D. Cultivation of filamentous fungi for attack on synthetic polymers via biological Fenton chemistry. Methods Enzymol 2020; 648:71-94. [PMID: 33579418 DOI: 10.1016/bs.mie.2020.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Environmental pollution with synthetic polymers (commonly named plastics) nowadays poses serious threats to the environment and human health. Unfortunately, most conventional plastics are highly recalcitrant even under conditions known to be favorable for microbial degradation. Expanding the knowledge regarding opportunities and limitations of the microbial degradability of plastics would largely contribute to the development of adequate decontamination and management strategies for plastic pollution. This chapter provides cultivation approaches to be applied for the characterization of eco-physiologically diverse asco- and basidiomycete fungi with respect to their ability to attack solid and water-soluble synthetic polymers with the help of quinone redox cycling-based Fenton-type reactions, which result in the production of highly reactive hydroxyl radicals. These reactive oxygen species are the strongest oxidants known from biological systems. However, their potential employment by fungi dwelling in diverse habitats as a biodegradation tool to attack synthetic polymers is still insufficiently explored.
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Affiliation(s)
- Dietmar Schlosser
- Department of Environmental Microbiology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany.
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22
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Cruz Del Álamo A, Pariente MI, Martínez F, Molina R. Trametes versicolor immobilized on rotating biological contactors as alternative biological treatment for the removal of emerging concern micropollutants. WATER RESEARCH 2020; 170:115313. [PMID: 31770646 DOI: 10.1016/j.watres.2019.115313] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 11/12/2019] [Accepted: 11/14/2019] [Indexed: 05/25/2023]
Abstract
White rot fungi have been studied for the removal of micropollutants of emerging concern from wastewater during the last decade. However, several issues need to be overcome for its plausible implementation at full-scale installations such as the addition of supplementary substrates, the partial re-inoculation of fresh fungi or the use of extended hydraulic retention times. This work proposes the immobilization of Trametes versicolor on rotating biological contactors at bench scale (flowrates of 10 L/d and reactor capacity of 10 L) for the treatment of different urban wastewater. This type of bioreactor achieved remarkable reductions of the total organic carbon loading of the wastewater (70-75%) in a wide range of C:N and C:P ratios with limited addition of supplementary substrates, non-refreshment of the fungal biomass and only 1-day of hydraulic retention. The addition of gallic acid as quinone-like mediator and quelated iron and manganese complexes increased the removal of pharmaceutical micropollutants mediated by the so-called advanced bio-oxidation process. The immobilization of Trametes versicolor on rotating biological contactors also showed a remarkable stabilization of the fungi during the continuous treatment of different urban wastewater under non-sterile conditions. Thus, this system is a sound alternative for biological urban wastewater treatment with pharmaceutical removal because overcome all the problems usually associated with the water treatment technologies based on white rot fungi that makes difficult the scaling-up of the process and its implementation in full scale wastewater treatment plants.
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Affiliation(s)
- A Cruz Del Álamo
- Department of Chemical and Environmental Technology. ESCET. Rey Juan Carlos University, Móstoles, Madrid, Spain
| | - M I Pariente
- Department of Chemical and Environmental Technology. ESCET. Rey Juan Carlos University, Móstoles, Madrid, Spain
| | - F Martínez
- Department of Chemical and Environmental Technology. ESCET. Rey Juan Carlos University, Móstoles, Madrid, Spain
| | - R Molina
- Department of Chemical and Environmental Technology. ESCET. Rey Juan Carlos University, Móstoles, Madrid, Spain.
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23
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Bio-Fenton reaction involved in the cleavage of the ethoxylate chain of nonionic surfactants by dihydrolipoamide dehydrogenase from Pseudomonas nitroreducens TX1. Sci Rep 2019; 9:6827. [PMID: 31048711 PMCID: PMC6497679 DOI: 10.1038/s41598-019-43266-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 01/11/2019] [Indexed: 11/17/2022] Open
Abstract
Bacteria in the environment play a major role in the degradation of widely used man-made recalcitrant organic compounds. Pseudomonas nitroreducens TX1 is of special interest because of its high efficiency to remove nonionic ethoxylated surfactants. In this study, a novel approach was demonstrated by a bacterial enzyme involved in the formation of radicals to attack ethoxylated surfactants. The dihydrolipoamide dehydrogenase was purified from the crude extract of strain TX1 by using octylphenol polyethoxylate (OPEOn) as substrate. The extent of removal of OPEOs during the degradation process was conducted by purified recombinant enzyme from E. coli BL21 (DE3) in the presence of the excess of metal mixtures (Mn2+, Mg2+, Zn2+, and Cu2+). The metabolites and the degradation rates were analyzed and determined by liquid chromatography-mass spectrometry. The enzyme was demonstrated to form Fenton reagent in the presence of an excess of metals. Under this in vitro condition, it was shown to be able to shorten the ethoxylate chains of OPEOn. After 2 hours of reaction, the products obtained from the degradation experiment revealed a prominent ion peak at m/z = 493.3, namely the ethoxylate chain unit is 6 (OPEO6) compared to OPEO9 (m/z = 625.3), the main undegraded surfactant in the no enzyme control. It revealed that the concentration of OPEO15 and OPEO9 decreased by 90% and 40% after 4 hours, respectively. The disappearance rates for the OPEOn homologs correlated to the length of the exothylate chains, suggesting it is not a specific enzymatic reaction which cleaves one unit by unit from the end of the ethoxylate chain. The results indicate the diverse and novel strategy by bacteria to catabolize organic compounds by using existing housekeeping enzyme(s).
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Del Álamo AC, Pariente MI, Vasiliadou I, Padrino B, Puyol D, Molina R, Martínez F. Removal of pharmaceutical compounds from urban wastewater by an advanced bio-oxidation process based on fungi Trametes versicolor immobilized in a continuous RBC system. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:34884-34892. [PMID: 29264858 DOI: 10.1007/s11356-017-1053-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 12/13/2017] [Indexed: 05/16/2023]
Abstract
Conventional wastewater treatment plants (WWTPs) are not able to remove completely some emerging contaminants, such as residual pharmaceutical compounds (PCs) with potential ecotoxicity to water bodies. An advanced bio-oxidation process (ABOP) using white-rot fungi (WRF) has been proposed as alternative biological treatment for degradation of non-biodegradable compounds. A synthetic and real wastewater spiked with 12 PCs at 50 μg L-1 was treated by means of ABOP based on WRF in a rotating biological contactor (RBC) at 1 day of hydraulic retention time (HRT). The ABOP achieved a remarkable biological performance in terms of TOC removal and reduction of N-NH4 + and P-PO4 3- nutrients. Likewise, 5 of the 12 PCs were eliminated with removal efficiencies ranging from 80 to 95%, whereas 6 of 12 PCs were eliminated with removal values ranging from 50 to 70%. The anaerobic digestion of the fungal sludge generated upon the treatment was also evaluated, obtaining a methane yield of 250 mL CH4 gVS -1. These results evidenced that the proposed ABOP is a promising alternative for the sustainable wastewater treatment of urban effluents, combining advanced oxidation with biological operation for the removal of emerging PCs and energy recovery.
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Affiliation(s)
- Ana Cruz Del Álamo
- Department of Chemical and Energy Tech., Chemical and Environmental Tech., Mechanical Tech., and Analytical Chemistry, ESCET, Universidad Rey Juan Carlos, 28933, Móstoles, Madrid, Spain
| | - María Isabel Pariente
- Department of Chemical and Energy Tech., Chemical and Environmental Tech., Mechanical Tech., and Analytical Chemistry, ESCET, Universidad Rey Juan Carlos, 28933, Móstoles, Madrid, Spain
| | - Ioanna Vasiliadou
- Department of Chemical and Energy Tech., Chemical and Environmental Tech., Mechanical Tech., and Analytical Chemistry, ESCET, Universidad Rey Juan Carlos, 28933, Móstoles, Madrid, Spain
| | - Beatriz Padrino
- Department of Chemical and Energy Tech., Chemical and Environmental Tech., Mechanical Tech., and Analytical Chemistry, ESCET, Universidad Rey Juan Carlos, 28933, Móstoles, Madrid, Spain
| | - Daniel Puyol
- Department of Chemical and Energy Tech., Chemical and Environmental Tech., Mechanical Tech., and Analytical Chemistry, ESCET, Universidad Rey Juan Carlos, 28933, Móstoles, Madrid, Spain
| | - Raúl Molina
- Department of Chemical and Energy Tech., Chemical and Environmental Tech., Mechanical Tech., and Analytical Chemistry, ESCET, Universidad Rey Juan Carlos, 28933, Móstoles, Madrid, Spain.
| | - Fernando Martínez
- Department of Chemical and Energy Tech., Chemical and Environmental Tech., Mechanical Tech., and Analytical Chemistry, ESCET, Universidad Rey Juan Carlos, 28933, Móstoles, Madrid, Spain
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25
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Cong Y, Ge Y, Zhang T, Wang Q, Shao M, Zhang Y. Fabrication of Z-Scheme Fe2O3–MoS2–Cu2O Ternary Nanofilm with Significantly Enhanced Photoelectrocatalytic Performance. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b04089] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yanqing Cong
- School
of Environmental Science and Engineering and ‡Institute of Urban Aquatic Environment, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Yaohua Ge
- School
of Environmental Science and Engineering and ‡Institute of Urban Aquatic Environment, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Tongtong Zhang
- School
of Environmental Science and Engineering and ‡Institute of Urban Aquatic Environment, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Qi Wang
- School
of Environmental Science and Engineering and ‡Institute of Urban Aquatic Environment, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Meiling Shao
- School
of Environmental Science and Engineering and ‡Institute of Urban Aquatic Environment, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Yi Zhang
- School
of Environmental Science and Engineering and ‡Institute of Urban Aquatic Environment, Zhejiang Gongshang University, Hangzhou 310018, China
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Olicón-Hernández DR, González-López J, Aranda E. Overview on the Biochemical Potential of Filamentous Fungi to Degrade Pharmaceutical Compounds. Front Microbiol 2017; 8:1792. [PMID: 28979245 PMCID: PMC5611422 DOI: 10.3389/fmicb.2017.01792] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Accepted: 09/05/2017] [Indexed: 11/22/2022] Open
Abstract
Pharmaceuticals represent an immense business with increased demand due to intensive livestock raising and an aging human population, which guarantee the quality of human life and well-being. However, the development of removal technologies for these compounds is not keeping pace with the swift increase in their use. Pharmaceuticals constitute a potential risk group of multiclass chemicals of increasing concern since they are extremely frequent in all environments and have started to exhibit negative effects on micro- and macro-fauna as well as on human health. In this context, fungi are known to be extremely diverse and poorly studied microorganisms despite being well suited for bioremediation processes, taking into account their metabolic and physiological characteristics for the transformation of even highly toxic xenobiotic compounds. Increasing studies indicate that fungi can transform many structures of pharmaceutical compounds, including anti-inflammatories, β-blockers, and antibiotics. This is possible due to different mechanisms in combination with the extracellular and intracellular enzymes, which have broad of biotechnological applications. Thus, fungi and their enzymes could represent a promising tool to deal with this environmental problem. Here, we review the studies performed on pharmaceutical compounds biodegradation by the great diversity of these eukaryotes. We examine the state of the art of the current application of the Basidiomycota division, best known in this field, as well as the assembly of novel biodegradation pathways within the Ascomycota division and the Mucoromycotina subdivision from the standpoint of shared enzymatic systems, particularly for the cytochrome P450 superfamily of enzymes, which appear to be the key enzymes in these catabolic processes. Finally, we discuss the latest advances in the field of genetic engineering for their further application.
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Affiliation(s)
- Darío R Olicón-Hernández
- Environmental Microbiology Group, Department of Microbiology, Institute for Water Research, University of GranadaGranada, Spain
| | - Jesús González-López
- Environmental Microbiology Group, Department of Microbiology, Institute for Water Research, University of GranadaGranada, Spain.,Department of Microbiology, Faculty of Pharmacy, University of GranadaGranada, Spain
| | - Elisabet Aranda
- Environmental Microbiology Group, Department of Microbiology, Institute for Water Research, University of GranadaGranada, Spain.,Department of Microbiology, Faculty of Pharmacy, University of GranadaGranada, Spain
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27
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Extracellular redox cycling and hydroxyl radical production occurs widely in lichenized Ascomycetes. Fungal Biol 2017; 121:582-588. [DOI: 10.1016/j.funbio.2017.03.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 03/04/2017] [Accepted: 03/29/2017] [Indexed: 02/03/2023]
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28
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Krueger MC, Bergmann M, Schlosser D. Widespread ability of fungi to drive quinone redox cycling for biodegradation. FEMS Microbiol Lett 2016; 363:fnw105. [DOI: 10.1093/femsle/fnw105] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/17/2016] [Indexed: 11/13/2022] Open
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Peng S, Zhang W, He J, Yang X, Wang D, Zeng G. Enhancement of Fenton oxidation for removing organic matter from hypersaline solution by accelerating ferric system with hydroxylamine hydrochloride and benzoquinone. J Environ Sci (China) 2016; 41:16-23. [PMID: 26969046 DOI: 10.1016/j.jes.2015.05.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 04/30/2015] [Accepted: 05/04/2015] [Indexed: 06/05/2023]
Abstract
Fenton oxidation is generally inhibited in the presence of a high concentration of chloride ions. This study investigated the feasibility of using benzoquinone (BQ) and hydroxylamine hydrochloride (HA) as Fenton enhancers for the removal of glycerin from saline water under ambient temperature by accelerating the ferric system. It was found that organics removal was not obviously affected by chloride ions of low concentration (less than 0.1mol/L), while the mineralization rate was strongly inhibited in the presence of a large amount of chloride ions. In addition, ferric hydrolysis-precipitation was significantly alleviated in the presence of HA and BQ, and HA was more effective in reducing ferric ions into ferrous ions than HA, while the H2O2 decomposition rate was higher in the BQ-Fenton system. Electron spin resonance analysis revealed that OH production was reduced in high salinity conditions, while it was enhanced after the addition of HA and BQ (especially HA). This study provided a possible solution to control and alleviate the inhibitory effect of chloride ions on the Fenton process for organics removal.
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Affiliation(s)
- Siwei Peng
- Key Laboratory of Jiangxi Province for Ecological Diagnosis-Remediation and Pollution Control, Nanchang Hangkong University, Nanchang 330063, China; State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Weijun Zhang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jie He
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Xiaofang Yang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Dongsheng Wang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Guisheng Zeng
- Key Laboratory of Jiangxi Province for Ecological Diagnosis-Remediation and Pollution Control, Nanchang Hangkong University, Nanchang 330063, China.
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Otto B, Beuchel C, Liers C, Reisser W, Harms H, Schlosser D. Laccase-like enzyme activities from chlorophycean green algae with potential for bioconversion of phenolic pollutants. FEMS Microbiol Lett 2015; 362:fnv072. [DOI: 10.1093/femsle/fnv072] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2015] [Indexed: 01/18/2023] Open
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31
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32
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Oxidative biodegradation of single-walled carbon nanotubes by partially purified lignin peroxidase from Sparassis latifolia mushroom. J IND ENG CHEM 2014. [DOI: 10.1016/j.jiec.2013.12.022] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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33
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Zervakis GI, Ntougias S, Gargano ML, Besi MI, Polemis E, Typas MA, Venturella G. A reappraisal of the Pleurotus eryngii complex - new species and taxonomic combinations based on the application of a polyphasic approach, and an identification key to Pleurotus taxa associated with Apiaceae plants. Fungal Biol 2014; 118:814-34. [PMID: 25209640 DOI: 10.1016/j.funbio.2014.07.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Revised: 06/24/2014] [Accepted: 07/01/2014] [Indexed: 11/30/2022]
Abstract
The Pleurotus eryngii species-complex comprises choice edible mushrooms growing on roots and lower stem residues of Apiaceae (umbellifers) plants. Material deriving from extensive sampling was studied by mating compatibility, morphological and ecological criteria, and through analysis of ITS1-5.8S-ITS2 and IGS1 rRNA sequences. Results revealed that P. eryngii sensu stricto forms a diverse and widely distributed aggregate composed of varieties elaeoselini, eryngii, ferulae, thapsiae, and tingitanus. Pleurotuseryngii subsp. tuoliensis comb. nov. is a phylogenetically sister group to the former growing only on various Ferula species in Asia. The existence of Pleurotusnebrodensis outside of Sicily (i.e., in Greece) is reported for the first time on the basis of molecular data, while P. nebrodensis subsp. fossulatus comb. nov. is a related Asiatic taxon associated with the same plant (Prangos ferulacea). Last, Pleurotusferulaginis sp. nov. grows on Ferulago campestris in northeast Italy, Slovenia and Hungary; it occupies a distinct phylogenetic position accompanied with significant differences in spore size and mating incompatibility versus other Pleurotus populations. Coevolution with umbellifers and host/substrate specificity seem to play key roles in speciation processes within this fungal group. An identification key to the nine Pleurotus taxa growing in association with Apiaceae plants is provided.
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Affiliation(s)
- Georgios I Zervakis
- Agricultural University of Athens, Laboratory of General and Agricultural Microbiology, Iera Odos 75, 11855 Athens, Greece.
| | - Spyridon Ntougias
- Democritus University of Thrace, Department of Environmental Engineering, Laboratory of Wastewater Management and Treatment Technologies, Vas. Sofias 12, 67100 Xanthi, Greece
| | - Maria Letizia Gargano
- Università di Palermo, Department of Agricultural and Forest Sciences, Viale delle Scienze, 11, 90128 Palermo, Italy
| | - Maria I Besi
- John Innes Centre, Department of Disease and Stress Biology, Colney Lane, Norwich NR4 7UH, UK
| | - Elias Polemis
- Agricultural University of Athens, Laboratory of General and Agricultural Microbiology, Iera Odos 75, 11855 Athens, Greece
| | - Milton A Typas
- National and Kapodistrian University of Athens, Department of Genetics and Biotechnology, Faculty of Biology, Panepistemiopolis, Athens 15701, Greece
| | - Giuseppe Venturella
- Università di Palermo, Department of Agricultural and Forest Sciences, Viale delle Scienze, 11, 90128 Palermo, Italy
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Peroxidase(s) in environment protection. ScientificWorldJournal 2013; 2013:714639. [PMID: 24453894 PMCID: PMC3886600 DOI: 10.1155/2013/714639] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Accepted: 10/05/2013] [Indexed: 11/18/2022] Open
Abstract
Industrial discharges of untreated effluents into water bodies and emissions into air have deteriorated the quality of water and air, respectively. The huge amount of pollutants derived from industrial activities represents a threat for the environment and ecologic equilibrium. Phenols and halogenated phenols, polycyclic aromatic hydrocarbons (PAH), endocrine disruptive chemicals (EDC), pesticides, dioxins, polychlorinated biphenyls (PCB), industrial dyes, and other xenobiotics are among the most important pollutants. Peroxidases are enzymes that are able to transform a variety of compounds following a free radical mechanism, thereby yielding oxidized or polymerized products. The peroxidase transformation of these pollutants is accompanied by a reduction in their toxicity, due to loss of biological activity, reduction in the bioavailability, or the removal from aqueous phase, especially when the pollutant is found in water. The review describes the sources of peroxidases, the reactions catalyzed by them, and their applications in the management of pollutants in the environment.
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Jeon JR, Chang YS. Laccase-mediated oxidation of small organics: bifunctional roles for versatile applications. Trends Biotechnol 2013; 31:335-41. [DOI: 10.1016/j.tibtech.2013.04.002] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 04/02/2013] [Accepted: 04/02/2013] [Indexed: 12/01/2022]
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36
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Beckett RP, Zavarzina AG, Liers C. Oxidoreductases and cellulases in lichens: Possible roles in lichen biology and soil organic matter turnover. Fungal Biol 2013; 117:431-8. [DOI: 10.1016/j.funbio.2013.04.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 04/12/2013] [Accepted: 04/21/2013] [Indexed: 02/08/2023]
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37
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Addition of maize stalks and soybean oil to a historically PCB-contaminated soil: effect on degradation performance and indigenous microbiota. N Biotechnol 2012; 30:69-79. [DOI: 10.1016/j.nbt.2012.07.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2012] [Revised: 07/10/2012] [Accepted: 07/13/2012] [Indexed: 11/21/2022]
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38
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Soderquist TJ, Chesniak OM, Witt MR, Paramo A, Keeling VA, Keleher JJ. Evaluation of the catalytic decomposition of H2O2 through use of organo-metallic complexes – A potential link to the luminol presumptive blood test. Forensic Sci Int 2012; 219:101-5. [DOI: 10.1016/j.forsciint.2011.12.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Revised: 11/10/2011] [Accepted: 12/12/2011] [Indexed: 11/25/2022]
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39
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Moldes D, Fernández-Fernández M, Sanromán MÁ. Role of laccase and low molecular weight metabolites from Trametes versicolor in dye decolorization. ScientificWorldJournal 2012; 2012:398725. [PMID: 22566767 PMCID: PMC3329927 DOI: 10.1100/2012/398725] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Accepted: 01/04/2012] [Indexed: 11/24/2022] Open
Abstract
The studies regarding decolorization of dyes by laccase may not only inform about the possible application of this enzyme for environmental purposes, but also may provide important information about its reaction mechanism and the influence of several factors that could be involved. In this paper, decolorization of crystal violet and phenol red was carried out with different fractions of extracellular liquids from Trametes versicolor cultures, in order to describe the role of laccase in this reaction. Moreover, the possible role of the low molecular weight metabolites (LMWMs) also produced by the fungus was evaluated. The results confirm the existence of a nonenzymatic decolorization factor, since the nonprotein fraction of the extracellular liquids from cultures of T. versicolor has shown decolorization capability. Several experiments were performed in order to identify the main compounds related to this ability, which are probably low molecular weight peroxide compounds.
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Affiliation(s)
- Diego Moldes
- Department of Chemical Engineering, University of Vigo, Isaac Newton Building, Lagoas-Marcosende s/n, 36310 Vigo, Spain.
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40
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Page SE, Sander M, Arnold WA, McNeill K. Hydroxyl radical formation upon oxidation of reduced humic acids by oxygen in the dark. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:1590-7. [PMID: 22201224 DOI: 10.1021/es203836f] [Citation(s) in RCA: 127] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Humic acids (HAs) accept and donate electrons in many biogeochemical redox reactions at oxic/anoxic interfaces. The products of oxidation of reduced HAs by O(2) are unknown but are expected to yield reactive oxygen species, potentially including hydroxyl radical (·OH). To quantify the formation of ·OH upon oxidation of reduced HAs by O(2), three HAs were reduced electrochemically to well-defined redox states and were subsequently oxidized by O(2) in the presence of the ·OH probe terephthalate. The formation of ·OH upon oxidation increased with increasing extent of HA reduction. The yield of ·OH ranged from 42 to 160 mmol per mole of electrons donated by the reduced HA. The intermediacy of hydrogen peroxide (H(2)O(2)) in the formation of ·OH was supported by enhancement of ·OH formation upon addition of exogenous H(2)O(2) sources and by the suppression of ·OH formation upon addition of catalase as a quencher of endogenous H(2)O(2). The formation of ·OH in the dark during oxidation of reduced HA represents a previously unknown source of ·OH formation at oxic/anoxic interfaces and may affect the biogeochemical and pollutant redox dynamics at these interfaces.
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Affiliation(s)
- Sarah E Page
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, MN 55455, United States
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41
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Degradation of Chloro-organic Pollutants by White Rot Fungi. ENVIRONMENTAL SCIENCE AND ENGINEERING 2012. [DOI: 10.1007/978-3-642-23789-8_2] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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42
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Liers C, Ullrich R, Hofrichter M, Minibayeva FV, Beckett RP. A heme peroxidase of the ascomyceteous lichen Leptogium saturninum oxidizes high-redox potential substrates. Fungal Genet Biol 2011; 48:1139-45. [DOI: 10.1016/j.fgb.2011.10.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Revised: 10/18/2011] [Accepted: 10/21/2011] [Indexed: 11/16/2022]
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43
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Optimisation of the operational conditions of trichloroethylene degradation using Trametes versicolor under quinone redox cycling conditions using central composite design methodology. Biodegradation 2011; 23:333-41. [DOI: 10.1007/s10532-011-9513-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Accepted: 08/26/2011] [Indexed: 11/25/2022]
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Luna-Velasco A, Field JA, Cobo-Curiel A, Sierra-Alvarez R. Inorganic nanoparticles enhance the production of reactive oxygen species (ROS) during the autoxidation of L-3,4-dihydroxyphenylalanine (L-dopa). CHEMOSPHERE 2011; 85:19-25. [PMID: 21737115 DOI: 10.1016/j.chemosphere.2011.06.053] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2011] [Revised: 06/02/2011] [Accepted: 06/12/2011] [Indexed: 05/31/2023]
Abstract
Public concerns over the toxicity of nanoparticles (NPs) are growing due to the rapid development of nanotechnology. An important mechanism of nanotoxicity is oxidative stress resulting from reactive oxygen species (ROS). In this study, the chemical production of ROS by inorganic NPs oxidizing the mammalian phenolic compound, L-3,4-dihydroxyphenylalanine (l-dopa) was evaluated using a ROS sensitive dye, 2',7'-diclorodihydrofluorescin (DCFH). CeO(2), Fe(2)O(3) and Fe(0) NPs enhanced ROS production during the autoxidation of L-dopa by more than four-fold in reactions that were dependent on O(2). This is the first report of chemical ROS production due to interaction of phenolic compounds with NPs. Mn(2)O(3) oxidized DCFH in a reaction that did not require O(2) or L-dopa, suggesting a direct redox reaction between the Mn(2)O(3) and the dye. CeO(2), Mn(2)O(3) and to a lesser extent Fe(0) formed clear electron paramagnetic resonance (EPR) signature for hydroxyl radicals when incubated in aerobic aqueous suspensions with spin traps. The results indicate that NPs can generate ROS via chemical reactions with medium components and biomolecules susceptible to oxidation, such as L-dopa. NPs were reactive whereas micron-sized particles were not. The combined assay with L-dopa and DCFH is a method proposed to screen for chemical ROS production by NPs.
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Affiliation(s)
- Antonia Luna-Velasco
- Department of Chemical and Environmental Engineering, University of Arizona, P.O. Box 210011, Tucson, AZ 85721, USA.
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Grinhut T, Salame TM, Chen Y, Hadar Y. Involvement of ligninolytic enzymes and Fenton-like reaction in humic acid degradation by Trametes sp. Appl Microbiol Biotechnol 2011; 91:1131-40. [PMID: 21541787 DOI: 10.1007/s00253-011-3300-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2011] [Revised: 03/29/2011] [Accepted: 03/31/2011] [Indexed: 10/18/2022]
Abstract
Trametes sp. M23, isolated from biosolids compost was found to decompose humic acids (HA). A low N (LN) medium (C/N, 53) provided suitable conditions for HA degradation, whereas in a high N (HN) medium (C/N, 10), HA was not degraded. In the absence of Mn(2+), HA degradation was similar to that in Mn(2+)-containing medium. In contrast, MnP activity was significantly affected by Mn(2+). Laccase activity exhibited a negative correlation to HA degradation, while LiP activity was not detected. Thus, ligninolytic enzymes activity could provide only a partial explanation for the HA-degradation mechanism. The decolorization of two dyes, Orange II and Brilliant Blue R250, was also determined. Similar to HA degradation, under LN conditions, decolorization occurred independently of the presence of Mn(2+). We investigated the possible involvement of a Fenton-like reaction in HA degradation. The addition of DMSO, an OH-radical scavenger, to LN media resulted in a significant decrease in HA bleaching. The rate of extracellular Fe(3+) reduction was much higher in the LN vs. HN medium. In addition, the rate of reduction was even higher in the presence of HA in the medium. In vitro HA bleaching in non-inoculated media was observed with H(2)O(2) amendment to a final concentration of 200 mM (obtained by 50 mM amendments for 4 days) and Fe(2+) (36 mM). After 4 days of incubation, HA decolorization was similar to the biological treatment. These results support our hypothesis that a Fenton-like reaction is involved in HA degradation by Trametes sp. M23.
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Affiliation(s)
- Tzafrir Grinhut
- Department of Soil and Water Sciences, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, PO Box 12, Rehovot 76100, Israel
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Harms H, Schlosser D, Wick LY. Untapped potential: exploiting fungi in bioremediation of hazardous chemicals. Nat Rev Microbiol 2011; 9:177-92. [PMID: 21297669 DOI: 10.1038/nrmicro2519] [Citation(s) in RCA: 509] [Impact Index Per Article: 39.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Aranda E, Marco-Urrea E, Caminal G, Arias ME, García-Romera I, Guillén F. Advanced oxidation of benzene, toluene, ethylbenzene and xylene isomers (BTEX) by Trametes versicolor. JOURNAL OF HAZARDOUS MATERIALS 2010; 181:181-186. [PMID: 20627409 DOI: 10.1016/j.jhazmat.2010.04.114] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2009] [Revised: 02/20/2010] [Accepted: 04/29/2010] [Indexed: 05/29/2023]
Abstract
Advanced oxidation of benzene, toluene, ethylbenzene, and o-, m-, and p-xylene (BTEX) by the extracellular hydroxyl radicals (*OH) generated by the white-rot fungus Trametes versicolor is for the first time demonstrated. The production of *OH was induced by incubating the fungus with 2,6-dimethoxy-1,4-benzoquinone (DBQ) and Fe3+-EDTA. Under these conditions, *OH were generated through DBQ redox cycling catalyzed by quinone reductase and laccase. The capability of T. versicolor growing in malt extract medium to produce *OH by this mechanism was shown during primary and secondary metabolism, and was quantitatively modulated by the replacement of EDTA by oxalate and Mn2+ addition to DBQ incubations. Oxidation of BTEX was observed only under *OH induction conditions. *OH involvement was inferred from the high correlation observed between the rates at which they were produced under different DBQ redox cycling conditions and those of benzene removal, and the production of phenol as a typical hydroxylation product of *OH attack on benzene. All the BTEX compounds (500 microM) were oxidized at a similar rate, reaching an average of 71% degradation in 6 h samples. After this time oxidation stopped due to O2 depletion in the closed vials used in the incubations.
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Affiliation(s)
- Elisabet Aranda
- Departamento de Microbiología y Parasitología, Universidad de Alcalá, Alcalá de Henares, Spain.
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Marco-Urrea E, Aranda E, Caminal G, Guillén F. Induction of hydroxyl radical production in Trametes versicolor to degrade recalcitrant chlorinated hydrocarbons. BIORESOURCE TECHNOLOGY 2009; 100:5757-5762. [PMID: 19616936 DOI: 10.1016/j.biortech.2009.06.078] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2009] [Revised: 06/18/2009] [Accepted: 06/22/2009] [Indexed: 05/28/2023]
Abstract
Extracellular hydroxyl radical ((*)OH) production via quinone redox cycling in Trametes versicolor, grown in a chemically defined medium, was investigated to degrade trichloroethylene (TCE), perchloroethylene (PCE), 1,2,4- and 1,3,5-trichlorobenzene (TCB). The activity of the enzymes catalyzing the quinone redox cycle, quinone reductase and laccase, as well as the rate of (*)OH production, estimated as the formation of thiobarbituric acid reactive substances (TBARS) from 2-deoxyribose, increased rapidly during the first 2-3 days and then remained at relatively constant levels. Under quinone redox cycling conditions, TCE degradation was concomitant to TBARS production and chloride release, reaching a plateau after 6 h of incubation. Similar results were obtained in PCE, 1,2,4- and 1,3,5-TCB time course degradation experiments. The mole balance of chloride release and 1,2,4-TCB and TCE degraded suggests that these chemicals were almost completely dechlorinated. Experiments using [(13)C]-TCE confirmed unequivocal transformation of TCE to (13)CO(2). These results are of particular interest because PCE and 1,3,5-TCB degradation in aerobic conditions has been rarely reported to date in bacterial or fungal systems.
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Affiliation(s)
- Ernest Marco-Urrea
- Departament d'Enginyeria Química and Institut de Ciència i Tecnologia Ambiental, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain.
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