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Ren J, Qi X, Zhang J, Niu D, Shen Y, Yu C, Zhi J, Wang C, Jiang X, Zhang W, Li C. Biodegradation efficiency and mechanism of erythromycin degradation by Paracoccus versutus W7. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 332:117372. [PMID: 36731410 DOI: 10.1016/j.jenvman.2023.117372] [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: 10/22/2022] [Revised: 01/14/2023] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
Continuous and excessive usage of erythromycin results in serious environmental pollution and presents a health risk to humans. Biological treatment is considered as an efficient and economical method to remove it from the environment. In this study, a novel erythromycin-degrading bacterial strain, W7, isolated from sewage sludge was identified as Paracoccus versutus. Strain W7 degraded 58.5% of 50 mg/L erythromycin in 72 h under the optimal conditions of 35 °C, pH 7.0, and 0.1% sodium citrate with yeast powder in mineral salt medium. It completely eliminated erythromycin from erythromycin fermentation residue at concentrations of 100 and 300 mg/L within 36 and 60 h, respectively. Erythromycin esterase (EreA) was found to be involved in erythromycin metabolism in this strain and was expressed successfully. EreA could hydrolyze erythromycin, and its maximum activity occurred at pH 8.5 and 35 °C. Finally, six intermediates of erythromycin degraded by strain W7 were detected by high performance liquid chromatography mass spectrometry. Based on the novel intermediates and enzymes, we determined two possible pathways of erythromycin degradation by strain W7. This study broadened our understanding of the erythromycin catabolic processes of P. versutus and developed a feasible microbial strategy for removing erythromycin from erythromycin fermentation residue, wastewater, and other erythromycin-contaminated environments.
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Affiliation(s)
- Jianjun Ren
- Institute of Urban and Rural Mining, Changzhou University, No.21 Gehu Road, Wujin District, Changzhou 213164, China; National-Local Joint Engineering Research Center for Biomass Refining and High-Quality Utilization, Changzhou University, No.21 Gehu Road, Wujin District, Changzhou 213164, China
| | - Xiancheng Qi
- Institute of Urban and Rural Mining, Changzhou University, No.21 Gehu Road, Wujin District, Changzhou 213164, China; School of Pharmacy & School of Biological and Food Engineering, Changzhou University, No.21 Gehu Road, Wujin District, Changzhou 213164, China
| | - Jian Zhang
- Institute of Urban and Rural Mining, Changzhou University, No.21 Gehu Road, Wujin District, Changzhou 213164, China; National-Local Joint Engineering Research Center for Biomass Refining and High-Quality Utilization, Changzhou University, No.21 Gehu Road, Wujin District, Changzhou 213164, China
| | - Dongze Niu
- Institute of Urban and Rural Mining, Changzhou University, No.21 Gehu Road, Wujin District, Changzhou 213164, China; National-Local Joint Engineering Research Center for Biomass Refining and High-Quality Utilization, Changzhou University, No.21 Gehu Road, Wujin District, Changzhou 213164, China
| | - Yunpeng Shen
- Yili Chuanning Biotechnology Co., Ltd. No. 156 Alamutuya Country, Yining District, Yili 835000, China
| | - Changyong Yu
- Institute of Urban and Rural Mining, Changzhou University, No.21 Gehu Road, Wujin District, Changzhou 213164, China; National-Local Joint Engineering Research Center for Biomass Refining and High-Quality Utilization, Changzhou University, No.21 Gehu Road, Wujin District, Changzhou 213164, China
| | - Junqiang Zhi
- Beijing General Station of Animal Husbandry, No. 21 Chaoqian Road, Changping District, Beijing, 100101, China
| | - Chongqing Wang
- Beijing General Station of Animal Husbandry, No. 21 Chaoqian Road, Changping District, Beijing, 100101, China
| | - Xingmei Jiang
- Bijie Institute of Animal Husbandry and Veterinary Sciences, Degoumajiayuan Road, Qixingguan District, Bijie 551700, China
| | - Wenfan Zhang
- Institute of Urban and Rural Mining, Changzhou University, No.21 Gehu Road, Wujin District, Changzhou 213164, China; National-Local Joint Engineering Research Center for Biomass Refining and High-Quality Utilization, Changzhou University, No.21 Gehu Road, Wujin District, Changzhou 213164, China
| | - Chunyu Li
- Institute of Urban and Rural Mining, Changzhou University, No.21 Gehu Road, Wujin District, Changzhou 213164, China; National-Local Joint Engineering Research Center for Biomass Refining and High-Quality Utilization, Changzhou University, No.21 Gehu Road, Wujin District, Changzhou 213164, China.
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Zhang Y, Ouyang B, Chen Y, Zhang W, Guang C, Xu W, Mu W. Transformation of macrolides residues by a novel erythromycin esterase C (Ere C) and safety evaluation of transformed products on Caenorhabditis elegans. Process Biochem 2023. [DOI: 10.1016/j.procbio.2023.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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Cai X, Li J, Guan F, Luo X, Yu Z, Yuan Y. Complete pentachlorophenol biodegradation in a dual-working electrode bioelectrochemical system: Performance and functional microorganism identification. WATER RESEARCH 2023; 230:119529. [PMID: 36580804 DOI: 10.1016/j.watres.2022.119529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 11/19/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
Bioelectrochemical system (BES) can effectively promote the reductive dechlorination of chlorophenols (CPs). However, the complete degradation of CPs with sequential dechlorination and mineralization processes has rarely achieved from the BES. Here, a dual-working electrode BES was constructed and applied for the complete degradation of pentachlorophenol (PCP). Combined with DNA-stable isotope probing (DNA-SIP), the biofilms attached on the anodic and cathodic electrode in the BES were analyzed to explore the dechlorinating and mineralizing microorganisms. Results showed that PCP removal efficiency in the dual-working BES (84% for 21 days) was 4.1 and 4.7 times higher than those of conventional BESs with a single anodic or cathodic working electrode, respectively. Based on DNA-SIP and high-throughput sequencing analysis, the cathodic working electrode harbored the potential dechlorinators (Comamonas, Pseudomonas, Methylobacillus, and Dechlorosoma), and the anodic working enriched the potential intermediate mineralizing bacteria (Comamonas, Stenotrophomonas, and Geobacter), indicating that PCP could be completely degraded under the synergetic effect of these functional microorganisms. Besides, the potential autotrophic functional bacteria that might be involved in the PCP dechlorination were also identified by SIP labeled with 13C-NaHCO3. Our results proved that the dual-working BES could accelerate the complete degradation of PCP and enrich separately the functional microbial consortium for the PCP dechlorination and mineralization, which has broad potential for bioelectrochemical techniques in the treatment of wastewater contaminated with CPs or other halogenated organic compounds.
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Affiliation(s)
- Xixi Cai
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Jibing Li
- State Key Laboratory of Organic Geochemistry and Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Chinese Academy of Sciences, Guangzhou Institute of Geochemistry, Guangzhou 510640, China
| | - Fengyi Guan
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiaoshan Luo
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Zhen Yu
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Academy of Sciences, Institute of Eco-environmental and Soil Sciences, Guangzhou 510650, China
| | - Yong Yuan
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China.
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Yang M, Fu H, Wang WX. Responses of zebrafish (Danio rerio) cells to antibiotic erythromycin stress at the subcellular levels. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 853:158727. [PMID: 36108847 DOI: 10.1016/j.scitotenv.2022.158727] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 08/30/2022] [Accepted: 09/09/2022] [Indexed: 06/15/2023]
Abstract
Erythromycin (ERY) is one of the most used antibiotics frequently detected in different aquatic environments and may bring burdens to aquatic ecosystems. However, the impacts of antibiotics on aquatic systems other than the antibiotic resistance genes remain largely unknown. In the present study, the responses to ERY exposure at the subcellular-organelle levels were for the first time investigated and imaged over 24 h. Exposure to ERY hampered the zebrafish (Danio rerio) cell growth and decreased the cell viability in a time-dependent mode. Meanwhile, exposure to a low concentration of ERY (73.4 μg L-1) induced reactive oxygen species (ROS) overproduction and lysosomal damage following lysosomal alkalization and swelling. In turn, the lysosomal stress was the major driver of altering the ROS level, superoxide dismutase (SOD) activity, and glutathione (GSH) content. Subsequently, mitochondria displayed dysfunction such as increased mitochondrial ROS, impaired mitophagy, and induced mitochondria-driven apoptosis, as well as impaired mitochondrial electron transport chain and loss of membrane potential. These results collectively demonstrated the subcellular sensitive machinery responses to ERY stress at environmentally relevant and slightly higher sub-lethal concentrations. ERY may induce switching from autophagy to apoptosis with corresponding changes in lysosomal activity, antioxidant activity, and mitochondrial activity. The findings provided important information on the physiological and subcellular responses of fish cells to ERY.
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Affiliation(s)
- Meng Yang
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
| | - Hongbing Fu
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, 100048 Beijing, China
| | - Wen-Xiong Wang
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China.
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Ni S, Li C, Yu Y, Niu D, Zhu J, Yin D, Wang C, Zhang W, Jiang X, Ren J. Immobilization of EreB on Acid-Modified Palygorskite for Highly Efficient Degradation of Erythromycin. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:11064. [PMID: 36078780 PMCID: PMC9518184 DOI: 10.3390/ijerph191711064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/31/2022] [Accepted: 09/02/2022] [Indexed: 06/15/2023]
Abstract
Erythromycin is one of the most commonly used macrolide antibiotics. However, its pollution of the ecosystem is a significant risk to human health worldwide. Currently, there are no effective and environmentally friendly methods to resolve this issue. Although erythromycin esterase B (EreB) specifically degrades erythromycin, its non-recyclability and fragility limit the large-scale application of this enzyme. In this work, palygorskite was selected as a carrier for enzyme immobilization. The enzyme was attached to palygorskite via a crosslinking reaction to construct an effective erythromycin-degradation material (i.e., EreB@modified palygorskite), which was characterized using FT-IR, SEM, XRD, and Brunauer-Emmett-Teller techniques. The results suggested the successful modification of the material and the loading of the enzyme. The immobilized enzyme had a higher stability over varying temperatures (25-65 °C) and pH values (6.5-10.0) than the free enzyme, and the maximum rate of reaction (Vmax) and the turnover number (kcat) of the enzyme increased to 0.01 mM min-1 and 169 min-1, respectively, according to the enzyme-kinetics measurements. The EreB@modified palygorskite maintained about 45% of its activity after 10 cycles, and degraded erythromycin in polluted water to 20 mg L-1 within 300 min. These results indicate that EreB could serve as an effective immobilizing carrier for erythromycin degradation at the industrial scale.
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Affiliation(s)
- Shensheng Ni
- Institute of Urban and Rural Mining, Changzhou University, No. 21 Gehu Road, Wujin District, Changzhou 213164, China
- National-Local Joint Engineering Research Center for Biomass Refining and High-Quality Utilization, Changzhou University, No. 21 Gehu Road, Wujin District, Changzhou 213164, China
| | - Chunyu Li
- Institute of Urban and Rural Mining, Changzhou University, No. 21 Gehu Road, Wujin District, Changzhou 213164, China
- National-Local Joint Engineering Research Center for Biomass Refining and High-Quality Utilization, Changzhou University, No. 21 Gehu Road, Wujin District, Changzhou 213164, China
| | - Yicheng Yu
- Jiangsu Key Laboratory of Phylogenomics and Comparative Genomics, School of Life Sciences, Jiangsu Normal University, No. 101 Shanghai Road, Tongshan District, Xuzhou 221116, China
| | - Dongze Niu
- Institute of Urban and Rural Mining, Changzhou University, No. 21 Gehu Road, Wujin District, Changzhou 213164, China
- National-Local Joint Engineering Research Center for Biomass Refining and High-Quality Utilization, Changzhou University, No. 21 Gehu Road, Wujin District, Changzhou 213164, China
| | - Jie Zhu
- National-Local Joint Engineering Research Center for Biomass Refining and High-Quality Utilization, Changzhou University, No. 21 Gehu Road, Wujin District, Changzhou 213164, China
| | - Dongmin Yin
- Institute of Urban and Rural Mining, Changzhou University, No. 21 Gehu Road, Wujin District, Changzhou 213164, China
- National-Local Joint Engineering Research Center for Biomass Refining and High-Quality Utilization, Changzhou University, No. 21 Gehu Road, Wujin District, Changzhou 213164, China
| | - Chongqing Wang
- Beijing General Station of Animal Husbandry, No. 21 Chaoqian Road, Changping District, Beijing 100101, China
| | - Wenfan Zhang
- Institute of Urban and Rural Mining, Changzhou University, No. 21 Gehu Road, Wujin District, Changzhou 213164, China
- National-Local Joint Engineering Research Center for Biomass Refining and High-Quality Utilization, Changzhou University, No. 21 Gehu Road, Wujin District, Changzhou 213164, China
| | - Xingmei Jiang
- Bijie Institute of Animal Husbandry and Veterinary Sciences, De Gou Ma Jia Yuan, Qixingguan District, Bijie 551700, China
| | - Jianjun Ren
- Institute of Urban and Rural Mining, Changzhou University, No. 21 Gehu Road, Wujin District, Changzhou 213164, China
- National-Local Joint Engineering Research Center for Biomass Refining and High-Quality Utilization, Changzhou University, No. 21 Gehu Road, Wujin District, Changzhou 213164, China
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