51
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Atomic Fe sites embedded within carbon nanotubes for the efficient photodegradation of multiple tetracyclines. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120530] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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52
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Thiagarajan V, Seenivasan R, Jenkins D, Chandrasekaran N, Mukherjee A. Mixture toxicity of TiO 2 NPs and tetracycline at two trophic levels in the marine ecosystem: Chlorella sp. and Artemia salina. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 812:152241. [PMID: 34921881 DOI: 10.1016/j.scitotenv.2021.152241] [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: 09/18/2021] [Revised: 11/27/2021] [Accepted: 12/04/2021] [Indexed: 06/14/2023]
Abstract
Increasing usage of both nanomaterials and pharmaceuticals and their unabated release to the marine ecosystem pose a serious concern nowadays. The toxicity of the mixture of TiO2 NPs and tetracycline (TC) in the marine species are not very well covered in prior literature. The current study explores the joint toxic effects of TiO2 NPs and TC in a simulated marine food chain: Chlorella sp. and Artemia salina. Chlorella sp. was interacted with pristine TiO2 NPs (0.05, 05, and 5 mg/L), TC (0.5 mg/L), and their combinations for 48 h. The toxicity induced in Chlorella sp. by pristine TiO2 NPs through oxidative stress and chloroplast damage was not significantly changed in the presence of TC. Principal component analysis for the toxicity parameters revealed a strong association between growth inhibition and adsorption/internalization. In the second trophic level (A. salina), the waterborne exposure of TC additively increased the toxicity of TiO2 NPs. Both adsorption and degradation played a major role in the removal of TC from the suspension, resulting in additive toxic effects in both Chlorella sp. and A. salina. Compared to the waterborne exposure, the foodborne exposure of TiO2 NPs and TC induced lesser toxic effects owing to reduced uptake and accumulation in A. salina. Biomagnification results indicate that the dietary transfer of TiO2 NPs and TC does not pose a serious environmental threat in this two-level marine food chain.
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Affiliation(s)
- Vignesh Thiagarajan
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore, India
| | - R Seenivasan
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore, India
| | - David Jenkins
- Wolfson Nanomaterials & Devices Laboratory, School of Computing, Electronics and Mathematics, Faculty of Science & Engineering, University of Plymouth, Devon, UK
| | - N Chandrasekaran
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore, India
| | - Amitava Mukherjee
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore, India.
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53
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Wang Y, Gao C, Qu Z, Li M. The combined toxicity of binary mixtures of antibiotics against the cyanobacterium Microcystis is dose-dependent: insight from a theoretical nonlinear combined toxicity assessment method. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:11612-11624. [PMID: 34537942 DOI: 10.1007/s11356-021-16594-4] [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: 05/08/2021] [Accepted: 09/13/2021] [Indexed: 06/13/2023]
Abstract
The entry of antibiotics into aquatic ecosystems has a serious impact. Antibiotics usually exist as mixtures in natural water bodies. Therefore, it is particularly important to evaluate the mixed toxicity of antibiotic mixtures. The study of the combined toxicity of binary mixtures of antibiotics is the basis for exploring the mixed toxicity of multiple antibiotics. In this investigation, Microcystis aeruginosa (M. aeruginosa) was used as the test organism, and a theoretical nonlinear combined toxicity assessment method was adopted to evaluate the effects of binary mixtures of antibiotics consisting of tetracycline (TC), sulfadiazine (SD), and sulfamethoxazole (SMX) on cell growth, enzymatic activity, and gene expression. The median lethal concentrations of TC, SD, and SMX to M. aeruginosa were 0.52 mg L-1, 1.65 mg L-1, and 0.71 mg L-1, respectively. The results from the theoretical nonlinear combined toxicity assessment method showed that SD + TC was synergistic at low concentrations and antagonistic at high concentrations, while the combinations of SMX + SD and SMX + TC were synergistic. The determination of enzymatic activity and gene expression indicated that the antibiotics could inhibit the growth of M. aeruginosa by destroying the cell membrane structure, inhibiting photosynthesis, impeding the cell division process and the electron transfer process, and destroying the molecular structure of proteins and DNA. Different combinations of antibiotics have different degrees of damage to the antioxidant system and cell membrane self-repair function of M. aeruginosa, which are the reasons for the different combined toxicity effects.
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Affiliation(s)
- Yeyong Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Cheng Gao
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Zhi Qu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China.
| | - Ming Li
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
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54
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Sun L, Zhao C, Sun S, Hu C, Zhao Y, Liu J. Nutrient and tetracycline removal from simulated biogas slurry and biogas upgrading by microalgae cultivation under different carbon nanotubes concentrations. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:8538-8548. [PMID: 34491496 DOI: 10.1007/s11356-021-16341-9] [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: 01/17/2021] [Accepted: 08/31/2021] [Indexed: 06/13/2023]
Abstract
The present study sought to determine the effects of multi-walled carbon nanotubes (MWCNTs) concentrations (0-10 mg L-1) on tetracycline (TC) and biogas slurry nutrient removal by microalga Chlorella vulgaris cultivation. Treatments with 1 mg L-1 MWCNTs yielded the maximum chlorophyll a content, dry weight, and algal density of 143.73 ± 3.11 μg L-1, 0.81 ± 0.008 g L-1, and 5.83×107 cells L-1, respectively, suggesting that 1 mg L-1 MWCNTs could enhance microalgal growth performance and photosynthesis effectively. The highest removal rates of chemical oxygen demand, total phosphorus, total nitrogen, TC, and CO2 under 1 mg L-1 MWCNTs were 90.43 ± 5.15%, 78.12 ± 4.33%, 77.07 ± 4.12%, 89.64 ± 3.08%, and 64.26 ± 0.71%, respectively. These results elucidated that moderate MWCNTs concentrations might promote TC and nutrient removal by enhancing Chlorella vulgaris photosynthesis activity.
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Affiliation(s)
- Li Sun
- School of Ecological Technology & Engineering, Shanghai Institute of Technology, Shanghai, 201400, People's Republic of China
| | - Chunzhi Zhao
- School of Ecological Technology & Engineering, Shanghai Institute of Technology, Shanghai, 201400, People's Republic of China
| | - Shiqing Sun
- Nanhu College, Jiaxing University, Jiaxing, 314001, People's Republic of China
| | - Changwei Hu
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing, 314001, People's Republic of China
| | - Yongjun Zhao
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing, 314001, People's Republic of China.
| | - Juan Liu
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing, 314001, People's Republic of China.
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55
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Zare EN, Fallah Z, Le VT, Doan VD, Mudhoo A, Joo SW, Vasseghian Y, Tajbakhsh M, Moradi O, Sillanpää M, Varma RS. Remediation of pharmaceuticals from contaminated water by molecularly imprinted polymers: a review. ENVIRONMENTAL CHEMISTRY LETTERS 2022; 20:2629-2664. [PMID: 35431714 PMCID: PMC8999999 DOI: 10.1007/s10311-022-01439-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 03/15/2022] [Indexed: 05/03/2023]
Abstract
The release of pharmaceuticals into the environment induces adverse effects on the metabolism of humans and other living species, calling for advanced remediation methods. Conventional removal methods are often non-selective and cause secondary contamination. These issues may be partly solved by the use of recently-developped adsorbents such as molecularly imprinted polymers. Here we review the synthesis and application of molecularly imprinted polymers for removing pharmaceuticals in water. Molecularly imprinted polymers are synthesized via several multiple-step polymerization methods. Molecularly imprinted polymers are potent adsorbents at the laboratory scale, yet their efficiency is limited by template leakage and polymer quality. Adsorption performance of multi-templated molecularly imprinted polymers depends on the design of wastewater treatment plants, pharmaceutical consumption patterns and the population serviced by these wastewater treatment plants.
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Affiliation(s)
| | - Zari Fallah
- Faculty of Chemistry, University of Mazandaran, 47416-95447 Babolsar, Iran
| | - Van Thuan Le
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang, 55000 Vietnam
- The Faculty of Natural Sciences, Duy Tan University, 03 Quang Trung, Da Nang, 55000 Vietnam
| | - Van-Dat Doan
- Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, 12 Nguyen Van Bao, Ho Chi Minh, 70000 Vietnam
| | - Ackmez Mudhoo
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Mauritius, Réduit, 80837 Mauritius
| | - Sang-Woo Joo
- Department of Chemistry, Soongsil University, Seoul, 06978 South Korea
| | - Yasser Vasseghian
- Department of Chemistry, Soongsil University, Seoul, 06978 South Korea
| | - Mahmood Tajbakhsh
- Faculty of Chemistry, University of Mazandaran, 47416-95447 Babolsar, Iran
| | - Omid Moradi
- Department of Chemistry, Shahr-e-Qods Branch, Islamic Azad University, Tehran, Iran
| | - Mika Sillanpää
- Department of Chemical Engineering, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, P. O. Box 17011, Doornfontein, 2028 South Africa
| | - Rajender S. Varma
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University in Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
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56
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Zhong SF, Yang B, Xiong Q, Cai WW, Lan ZG, Ying GG. Hydrolytic transformation mechanism of tetracycline antibiotics: Reaction kinetics, products identification and determination in WWTPs. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 229:113063. [PMID: 34890985 DOI: 10.1016/j.ecoenv.2021.113063] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/22/2021] [Accepted: 12/04/2021] [Indexed: 06/13/2023]
Abstract
Antibiotic residues and antibiotic resistance have been widely reported in aquatic environments. Hydrolysis of antibiotics is one of the important environmental processes. Here we investigated the hydrolytic transformation of four tetracycline antibiotics i.e. tetracycline (TC), chlortetracycline (CTC), oxytetracycline (OTC) and doxycycline (DC) under different environmental conditions, and determined their parents and transformation products in the wastewater treatment plants (WWTPs). The results showed that the hydrolysis of the four tetracyclines followed first-order reaction kinetics, and the acid-catalyzed hydrolysis rates were significantly lower than the base-catalyzed and neutral pH hydrolysis rates. The effect of temperature on tetracycline hydrolysis was quantified by Arrhenius equation, with Ea values ranged from 42.0 kJ mol-1 to 77.0 kJ mol-1 at pH 7.0. In total, nine, six, eight and nine transformation products at three different pH conditions were identified for TC, CTC, OTC and DC, respectively. The main hydrolysis pathways involved the epimerization/isomerization, and dehydration. According to the mass balance analysis, 4-epi-tetracycline and iso-chlortetracycline were the main hydrolytic products for TC and CTC, respectively. The 2 tetracyclines and 4 hydrolysis products were found in the sludge samples in two WWTPs, with concentrations from 15.8 ng/g to 1418 ng/g. Preliminary toxicity evaluation for the tetracyclines and their hydrolysis products showed that some hydrolysis products had higher predicted toxicity than their parent compounds. These results suggest that the hydrolysis products of tetracycline antibiotics should also be included in environmental monitoring and risk assessment.
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Affiliation(s)
- Shao-Fen Zhong
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, Guangzhou 510006, China; School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan 523808, China
| | - Bin Yang
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, Guangzhou 510006, China.
| | - Qian Xiong
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, Guangzhou 510006, China
| | - Wen-Wen Cai
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, Guangzhou 510006, China
| | - Zheng-Gang Lan
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, Guangzhou 510006, China
| | - Guang-Guo Ying
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, Guangzhou 510006, China.
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57
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Wang Y, Gong X, Huang D, Zhang J. Increasing oxytetracycline and enrofloxacin concentrations on the algal growth and sewage purification performance of an algal-bacterial consortia system. CHEMOSPHERE 2022; 286:131917. [PMID: 34426270 DOI: 10.1016/j.chemosphere.2021.131917] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/02/2021] [Accepted: 08/15/2021] [Indexed: 06/13/2023]
Abstract
Oxytetracycline (OTC) and enrofloxacin (EFX) pollution in surface water are very common. Using the algal-bacterial consortia system to remove antibiotics remains to be further studied. In this study, the algal growth and sewage purification performance were studied in an algal-bacterial consortia system with different concentrations of antibiotics. The enzyme activity, malondialdehyde content, chlorophyll-a content, extracellular polysaccharide, and protein content of algae were also tested. It was found that the algal growth was promoted by low-dose antibiotics, 21.83% and 22.11% promotion at 0.1 mg L-1 OTC and EFX, respectively. The nutrients and antibiotics removals of the low-dose groups (OTC <5 mg L-1, EFX <1 mg L-1) were not affected significantly. More than 70% of total organic carbon and total phosphorus, and 97.84-99.76% OTC, 42.68-42.90% EFX were removed in the low-dose groups. However, the algal growth was inhibited, and the nutrients removals performance also declined in the high-concentration groups (10 mg L-1 OTC, 5 mg L-1 EFX). The superoxide dismutase and catalase activity, and malondialdehyde content increased significantly (P < 0.05), indicating the increased activity of reactive oxygen species. In addition, the decreased chlorophyll-a content, thylakoid membrane deformation, starch granules accumulation, and plasmolysis showed that the algal physiological functions were affected. These results showed that the algal-bacterial consortia system was more suitable to treat low-concentration antibiotics and provided basic parameters for the consortia application.
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Affiliation(s)
- Yu Wang
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, PR China
| | - Xinye Gong
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, PR China
| | - Deying Huang
- Department of Chemistry, Fudan University, Shanghai, 200433, PR China.
| | - Jibiao Zhang
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, PR China.
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58
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Wang M, Zhao J, Wu L, Ma T. Effects of 4-epianhydrotetracycline on oxidative stress in zebrafish (Danio rerio) embryos. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 796:149047. [PMID: 34280629 DOI: 10.1016/j.scitotenv.2021.149047] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/22/2021] [Accepted: 07/11/2021] [Indexed: 06/13/2023]
Abstract
4-Epianhydrotetracycline (4-EATC) is a major intermediate product of tetracycline during its degradation progress in the natural environment, which is frequently detected in aquatic environments and poses a potential threat to aquatic organisms. In the present study, the ecotoxicity of 4-EATC have been studied from the perspective of oxidative stress by using zebrafish embryos. After 96 h exposure, the reactive oxygen species (ROS) levels, malondialdehyde (MDA) concentrations and protein carbonyl (PC) contents in zebrafish embryos in the lower-concentration 4-EATC treatment groups (1.25 mg/L and 2.50 mg/L) showed no significant differences compared with the negative control group. However, the total superoxide dismutase (SOD) activity was increased significantly. After exposed to the higher-concentration of 4-EATC (5.00, 10.0 and 20.0 mg/L) resulted in a significant increase in ROS levels, MDA concentrations and PC contents, in contrast, a significant decrease in SOD activities. The results indicate that exposure to high concentrations of 4-EATC (5.00, 10.0 and 20.0 mg/L) could disrupt the redox equilibrium in zebrafish embryos, leading to the occurrence of oxidative damage. Apoptosis of the embryonic cells could be induced by 4-EATC exposure at different concentration and the rate of apoptosis enhanced with the increase of 4-EATC concentration. The pericardium was the most frequent site of apoptosis. The present study points out that more attention should be paid to the potential ecological risks of antibiotic degradation products.
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Affiliation(s)
- Meng Wang
- College of Biology and Environmental Science, Jishou University, Jishou 416000, PR China
| | - Jianfu Zhao
- Key Laboratory of Yangtze River Water Environment of the Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China
| | - Lingling Wu
- Key Laboratory of Yangtze River Water Environment of the Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China.
| | - Taowu Ma
- College of Biology and Environmental Science, Jishou University, Jishou 416000, PR China
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59
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Huang X, Zhang X, Huang Y, Xu X. Optimization of media composition for enhancing tetracycline degradation by Trichosporon mycotoxinivorans XPY-10 using response surface methodology. ENVIRONMENTAL TECHNOLOGY 2021; 42:4279-4285. [PMID: 32270748 DOI: 10.1080/09593330.2020.1754472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 04/05/2020] [Indexed: 06/11/2023]
Abstract
The objective of the study was to improve tetracycline degradation efficiency by Trichosporon mycotoxinivorans XPY-10 using statistical experimental designs. Different culture conditions (FeSO4, pH and glucose) were optimized for tetracycline biodegradation and the mutual interactions between these three variables were analysed using Box-Behnken design (BBD) and response surface methodology (RSM). The results showed that the empirical model was suitable for experimental data, and the maximum tetracycline degradation efficiency by XPY-10 was 95.18% under the optimum conditions of 0.02% of FeSO4, pH 7.83 and 0.28% of glucose, which was further verified by experiments. This study indicated the excellent ability of XPY-10 in degrading tetracycline and theoretical support for the follow-up practice to remediate tetracycline contaminated environment.
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Affiliation(s)
- Xiaochen Huang
- College of Life Sciences, Fujian Normal University, Fuzhou, People's Republic of China
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, People's Republic of China
| | - Xinyang Zhang
- College of Life Sciences, Fujian Normal University, Fuzhou, People's Republic of China
| | - Yanyan Huang
- College of Life Sciences, Fujian Normal University, Fuzhou, People's Republic of China
| | - Xuping Xu
- College of Life Sciences, Fujian Normal University, Fuzhou, People's Republic of China
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60
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Photocatalytic Degradation of Antibiotics by Superparamagnetic Iron Oxide Nanoparticles. Tetracycline Case. Catalysts 2021. [DOI: 10.3390/catal11101243] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
Abstract
The challenges associated with the uncontrolled presence of antibiotics such as tetracycline in the environment have necessitated their removal through different techniques. Tetracycline is hard to degrade in living organisms and can even be converted to more toxic substances. In view of this, we synthesized iron oxide nanoparticles with good magnetization (70 emu g−1) and 15 nm particle size for the adsorption and photocatalytic degradation of tetracycline. Characterization carried out on the synthesized iron oxides revealed a bandgap of 1.83 eV and an isoelectric point at pH 6.8. The results also showed that the pH of the solution does not directly influence the adsorption of tetracycline. The adsorption isotherm was consistent with the model proposed by Langmuir, having 97 mg g−1 adsorption capacity. Combined with the superparamagnetic behavior, this capacity is advantageous for the magnetic extraction of tetracycline from wastewater. The mechanisms of adsorption were proposed to be hydrogen bonding and n-π interactions. Photocatalytic degradation studies showed that approximately 40% of tetracycline degraded within 60 min of irradiation time with UV/vis light. The kinetics of photodegradation of tetracycline followed the pseudo-first-order mechanism, proceeding through hydroxyl radicals generated under illumination. Moreover, the photogenerated hydrogen peroxide could lead to heterogeneous photo-Fenton processes on the surface of iron oxide nanoparticles, additionally generating hydroxyl and hydroperoxyl radicals and facilitating photodegradation of tetracycline.
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61
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Divyapriya G, Singh S, Martínez-Huitle CA, Scaria J, Karim AV, Nidheesh PV. Treatment of real wastewater by photoelectrochemical methods: An overview. CHEMOSPHERE 2021; 276:130188. [PMID: 33743419 DOI: 10.1016/j.chemosphere.2021.130188] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/24/2021] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
An inadequate and inefficient performance ability of conventional methods to remove persistent organic pollutants urges the need of alternative or complementary advanced wastewater treatments methods to ensure the safer reuse of reclaimed water. Photoelectrochemical methods are emerging as promising options among other advanced oxidation processes because of the higher treatment efficiency achieved due to the synergistic effects of combined photochemical and electrolysis reactions. Synergistic effects of integrated photochemical, electrochemical and photoelectrochemical processes not only increase the hydroxyl radical production; an enhancement on the mineralization ability through various side reactions is also achieved. In this review, fundamental reaction mechanisms of different photoelectrochemical methods including photoelectrocatalysis, photo/solar electro-Fenton, photo anodic oxidation, photoelectroperoxone and photocatalytic fuel cell are discussed. Various integrated photochemical, electrochemical and photoelectrochemical processes and their synergistic effects are elaborated. Different reactor configurations along with the positioning of electrodes, photocatalysts and light source of the individual/combined photoelectrochemical treatment systems are discussed. Modified photoanode and cathode materials used in the photoelectrochemical reactors and their performance ability is presented. Photoelectrochemical treatment of real wastewater such as landfill leachate, oil mill, pharmaceutical, textile, and tannery wastewater are reviewed. Hydrogen production efficiency in the photoelectrochemical process is further elaborated. Cost and energy involved in these processes are briefed, but the applicability of photocatalytic fuel cells to reduce the electrical dependence is also summarised. Finally, the use of photoelectrochemical approaches as an alternative for treating soil washing effluents is currently discussed.
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Affiliation(s)
- G Divyapriya
- Virginia Polytechnic Institute and State University, USA
| | - Seema Singh
- Omvati Devi Degree College, Bhalaswagaj, Haridwar, India
| | - Carlos A Martínez-Huitle
- Institute of Chemistry, Federal University of Rio Grande do Norte, Lagoa Nova, CEP 59078-970, Natal, RN, Brazil.
| | - Jaimy Scaria
- CSIR-National Environmental Engineering Research Institute, Nagpur, Maharashtra, India
| | - Ansaf V Karim
- Environmental Science and Engineering Department, Indian Institute of Technology, Bombay, India
| | - P V Nidheesh
- CSIR-National Environmental Engineering Research Institute, Nagpur, Maharashtra, India.
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62
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Tan Z, Chen J, Liu Y, Chen L, Xu Y, Zou Y, Li Y, Gong B. The survival and removal mechanism of Sphingobacterium changzhouense TC931 under tetracycline stress and its' ecological safety after application. BIORESOURCE TECHNOLOGY 2021; 333:125067. [PMID: 33878498 DOI: 10.1016/j.biortech.2021.125067] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/21/2021] [Accepted: 03/22/2021] [Indexed: 06/12/2023]
Abstract
Sphingobacterium changzhouense TC931 was isolated as a novel TC (tetracycline) removal bacterium through adsorption on extracellular polymerase substances (EPS) and cellular surface and biodegradation. TC biodegradation efficiency by strain TC931 was affected by solution initial pH and carbon source. Polysaccharides and hydrocarbons in EPS and cellular surface were responsible for TC biosorption. Eight possible biodegradation products were identified and the biodegradation pathway was proposed. Strain TC931 was rich in antibiotic resistance genes, and tetX-TC931 and antibiotics resistance genome island (GI) may be acquired via horizontal gene transfer in early evolutionary history. The GI was incomplete and may stable in strain TC931, but it could develop into an intact and transferability GI with help of other mobile genetic elements. This work offers a theoretical basis for understanding the survival and biodegradation mechanisms of S. changzhouense TC931 under TC stress, and offers an ecological safety assessment for its application in environmental bioremediation.
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Affiliation(s)
- Zewen Tan
- College of Natural Resources and Environment, Joint Institute for Environment & Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Jiacheng Chen
- College of Natural Resources and Environment, Joint Institute for Environment & Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Yiling Liu
- College of Natural Resources and Environment, Joint Institute for Environment & Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Lian Chen
- College of Natural Resources and Environment, Joint Institute for Environment & Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Yuqing Xu
- College of Natural Resources and Environment, Joint Institute for Environment & Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Yixuan Zou
- College of Natural Resources and Environment, Joint Institute for Environment & Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Yongtao Li
- College of Natural Resources and Environment, Joint Institute for Environment & Education, South China Agricultural University, Guangzhou 510642, PR China
| | - Beini Gong
- College of Natural Resources and Environment, Joint Institute for Environment & Education, South China Agricultural University, Guangzhou 510642, PR China.
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63
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Li J, Li W, Min Z, Zheng Q, Han J, Li P. Physiological, biochemical and transcription effects of roxithromycin before and after phototransformation in Chlorella pyrenoidosa. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 238:105911. [PMID: 34298405 DOI: 10.1016/j.aquatox.2021.105911] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 06/13/2021] [Accepted: 07/07/2021] [Indexed: 06/13/2023]
Abstract
Photodegradation is an important transformation pathway for macrolide antibiotics (MCLs) in aquatic environments, but the ecotoxicity of MCLs after phototransformation has not been reported in detail. This study investigated the effects of roxithromycin (ROX) before and after phototransformation on the growth and physio-biochemical characteristics of Chlorella pyrenoidosa, and its toxicity were explored using transcriptomics analysis. The results showed that 2 mg/L ROX before phototransformation (T0 group) inhibited algae growth with inhibition rates of 53.06%, 54.17%, 47.26%, 31.27%, and 28.38% at 3, 7, 10, 14, and 21 d, respectively, and chlorophyll synthesis was also inhibited. The upregulation of antioxidative enzyme activity levels and the malondialdehyde content indicated that ROX caused oxidative damage to C. pyrenoidosa during 21 d of exposure. After phototransformation for 48 h (T48 group), ROX exhibited no significant impact on the growth and physio-biochemical characteristics of the microalgae. Compared with the control group (without ROX and its phototransformation products), 2010 and 2988 differentially expressed genes were identified in the T0 and T48 treatment groups, respectively. ROX significantly downregulated genes related to porphyrin and chlorophyll metabolism, which resulted in the inhibition of chlorophyll synthesis and algae growth. ROX also significantly downregulated genes of DNA replication, suggesting the increased DNA proliferation risks in algae. After phototransformation, ROX upregulated most of the genes associated with the porphyrin and chlorophyll metabolism pathway, which may be the reason that the chlorophyll content in T48 treatment group showed no significant difference from the control group. Almost all light-harvesting chlorophyll a/b (LHCa/b) gene family members were upregulated in both T0 and T48 treatment groups, which may compensate part of the stress of ROX and its phototransformation products.
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Affiliation(s)
- Jiping Li
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Longpan Road 159, Nanjing 210037, China
| | - Wei Li
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Longpan Road 159, Nanjing 210037, China; National Positioning Observation Station of Hung-tse Lake Wetland Ecosystem in Jiangsu Province, Hongze, Jiangsu 223100, China.
| | - Zhongfang Min
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Longpan Road 159, Nanjing 210037, China
| | - Qinqin Zheng
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Longpan Road 159, Nanjing 210037, China
| | - Jiangang Han
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Longpan Road 159, Nanjing 210037, China; National Positioning Observation Station of Hung-tse Lake Wetland Ecosystem in Jiangsu Province, Hongze, Jiangsu 223100, China
| | - Pingping Li
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Longpan Road 159, Nanjing 210037, China; National Positioning Observation Station of Hung-tse Lake Wetland Ecosystem in Jiangsu Province, Hongze, Jiangsu 223100, China
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64
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Effect of Oxidative Stress on Physicochemical Quality of Taiwanese Seagrape (Caulerpa lentillifera) with the Application of Alternating Current Electric Field (ACEF) during Post-Harvest Storage. Processes (Basel) 2021. [DOI: 10.3390/pr9061011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
This study aims to determine the physicochemical quality of seagrape (Caulerpa lentillifera) as a freshness label for products cultivated in different seasons. The applied post-harvest storage experiments compared between, within and without seawater that led to oxidative stress conditions. Water content, malondialdehyde (MDA) compound, total phenolic content (TPC), and chlorophyll content were observed at 0, 3, 6, and 9 days of storage. The storage without seawater showed sharper quality reductions by reaching 20–40% of water loss, 70–90% of MDA production, 15–25% of TPC reduction, and 40–60% of total chlorophyll degradation. The storage within seawater showed lower quality reductions due to the specific growth rates still reaching 5–10%. This study found that the greater the physicochemical quality, the slower the decomposition rates of the stored seagrape during storage. Therefore, the seagrapes’ obvious discoloration occurred earlier in winter, followed by summer and spring. Kinetics of chlorophyll degradation on seagrape in different seasons meet different order-reactions during storage. Furthermore, alternating current electric field (ACEF) treatment with 125 kV/m of intensity for 60 min can lower the spring seagrapes’ physicochemical quality by reaching 10–30% of inhibition, resulting in the shelf-life extension for up to 12 days of post-harvest storage.
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65
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Scaria J, Anupama KV, Nidheesh PV. Tetracyclines in the environment: An overview on the occurrence, fate, toxicity, detection, removal methods, and sludge management. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 771:145291. [PMID: 33545482 DOI: 10.1016/j.scitotenv.2021.145291] [Citation(s) in RCA: 146] [Impact Index Per Article: 48.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/28/2020] [Accepted: 01/14/2021] [Indexed: 06/12/2023]
Abstract
Tetracyclines (TCs) are a group of broad-spectrum antibiotics having vast human, veterinary, and aquaculture applications. The continuous release of TCs residues into the environment and the inadequate removal through the conventional treatment systems result in its prevalent occurrence in soil, surface water, groundwater, and even in drinking water. As aqueous TCs contamination is the tip of the iceberg, and TCs possess good sorption capacity towards soil, sediments, sludge, and manure, it is insufficient to rely on the sorptive removal in the conventional water treatment plants. The severity of the TCs contamination is evident from the emergence of TCs resistance in a wide variety of microorganisms. This paper reviews the recent research on the TCs occurrence in the environmental matrices, fate in natural systems, toxic effects, and the removal methods. The high performance liquid chromatography (HPLC) determination of TCs in environmental samples and the associated technology developments are analyzed. The benefits and limitations of biochemical and physicochemical removal processes are also discussed. This work draws attention to the inevitability of proper TC sludge management. This paper also gives insight into the limitations of TCs related research and the future scope of research in environmental contamination by TCs residues.
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Affiliation(s)
- Jaimy Scaria
- Environmental Impact and Sustainability Division, CSIR-National Environmental Engineering Research Institute, Nagpur, Maharashtra, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - K V Anupama
- Environmental Impact and Sustainability Division, CSIR-National Environmental Engineering Research Institute, Nagpur, Maharashtra, India
| | - P V Nidheesh
- Environmental Impact and Sustainability Division, CSIR-National Environmental Engineering Research Institute, Nagpur, Maharashtra, India.
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66
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Wan L, Wu Y, Zhang B, Yang W, Ding H, Zhang W. Effects of moxifloxacin and gatifloxacin stress on growth, photosynthesis, antioxidant responses, and microcystin release in Microcystis aeruginosa. JOURNAL OF HAZARDOUS MATERIALS 2021; 409:124518. [PMID: 33191018 DOI: 10.1016/j.jhazmat.2020.124518] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 11/05/2020] [Accepted: 11/05/2020] [Indexed: 06/11/2023]
Abstract
Moxifloxacin (MOX) and gatifloxacin (GAT) are fourth-generation fluoroquinolone antibiotics that are frequently detected in surface water environments and pose a threat to aquatic organisms. However, research into their toxicity to Microcystis aeruginosa, a cyanobacterium, has thus far been limited. In the present study, we investigated the effects of these antibiotics on M. aeruginosa growth, photosynthesis, oxidative stress, and microcystin (MC) release. The results of the 96 h EC50 values of MOX and GAT were 60.34 and 25.30 μg/L, respectively, and the risk quotients calculated indicated that these antibiotics could pose considerable ecological risks at actual environmental concentrations. Photosynthetic fluorescence intensity was shown to decline markedly, and Fv/Fm significantly decreased without any evidence of recovery, suggesting that the organism's photosystems were irreversibly damaged. Chlorophyll a and carotenoid content decreased, whereas the ratio of carotenoids to chlorophyll a increased, indicating that carotenoids were less susceptible to damage than chlorophyll a. The reactive oxygen species and malondialdehyde content significantly increased, as well as the superoxide dismutase and catalase activities, indicating that exposure caused serious oxidative stress. Additionally, MC release increased. These results demonstrate that the environmental risks posed by MOX and GAT should be given serious consideration, particularly as their use is increasing.
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Affiliation(s)
- Liang Wan
- School of Resource and Environmental Science, Wuhan University, Wuhan 430079, PR China
| | - Yixiao Wu
- School of Resource and Environmental Science, Wuhan University, Wuhan 430079, PR China
| | - Benhao Zhang
- School of Resource and Environmental Science, Wuhan University, Wuhan 430079, PR China
| | - Wenfeng Yang
- School of Resource and Environmental Science, Wuhan University, Wuhan 430079, PR China
| | - Huijun Ding
- Jiangxi Provincial Key Laboratory of Water Resources and Environment of Poyang Lake, Jiangxi Provincial Institute of Water Sciences, Nanchang 330029, PR China
| | - Weihao Zhang
- School of Resource and Environmental Science, Wuhan University, Wuhan 430079, PR China; Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Science, Wuhan University, Wuhan 430079, PR China.
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67
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Wang Y, Fan H, Keung Wong P, Wu Y, Rittmann B. Biodegradation of tetracycline using hybrid material (UCPs-TiO 2) coupled with biofilms under visible light. BIORESOURCE TECHNOLOGY 2021; 323:124638. [PMID: 33418351 DOI: 10.1016/j.biortech.2020.124638] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/25/2020] [Accepted: 12/26/2020] [Indexed: 06/12/2023]
Abstract
To develop a more green and effective method for tetracycline (TC) removal, a hybrid material (conversion phosphors-TiO2, UCPs-TiO2) was coupled with a biofilm to achieve enhanced removal of TC. The removal of TC by biofilm coupled with UCPs-TiO2 under visible light reached 82%, which was 35% higher than that in treatment using only the biofilm. Extracellular polymeric substance (EPS) promoted the production of hydroxyl radicals by UCPs-TiO2, as the EPS acted as an electron transfer medium and accelerated the TC mineralization. Biofilm in the coupled system tolerated TC stress by regulating its antibiotic resistance genes (ARG) and superoxidedismutase (SOD), and allowed it to maintain stable and efficient removal of TC. This study documents a method to couple a hybrid material with microbial aggregates, creating a promising system for removing refractory organics, such as TC, from water. The study also offers insight into the mechanisms underlying TC removal by microbial aggregates combined with new functional materials.
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Affiliation(s)
- Yu Wang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, China; Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Environmental & Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Hua Fan
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Environmental & Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Po Keung Wong
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, NT, Hong Kong Special Administrative Region
| | - Yonghong Wu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, China.
| | - Bruce Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, AZ 85287-5701, USA
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68
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Abstract
The possibility of removing tetracycline (TRC) from water in an integrated advanced oxidation and membrane filtration process was investigated. Ozonation and UV/H2O2 photooxidation were applied for the destruction of TRC. Six oxidation products (OPs) retaining the structural core of TRC have been identified. One new TRC oxidation product, not reported so far in the literature, was identified—ethyl 4-ethoxybenzoate. All identified OPs were effectively retained on the membrane in the nanofiltration process. However, chemical oxygen demand (COD) measurements of the filtrates showed that in the case of UV/H2O2 oxidation, the OPs passed through the membrane into the filtrate. Various water matrices were used in the research, including the river water untreated and after ozone treatment. It has been shown that organic matter present in surface water can improve pharmaceutical retention, although it contributes to significant membrane fouling. Pre-ozonation of the river water reduced the membrane fouling. The XPS analysis was used to show ozone and H2O2 influence on the top polymer layer of the membrane. It was shown that the oxidants can damage the amide bond of the polyamide.
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69
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Shi Y, Lin H, Ma J, Zhu R, Sun W, Lin X, Zhang J, Zheng H, Zhang X. Degradation of tetracycline antibiotics by Arthrobacter nicotianae OTC-16. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123996. [PMID: 33265032 DOI: 10.1016/j.jhazmat.2020.123996] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 08/04/2020] [Accepted: 09/12/2020] [Indexed: 06/12/2023]
Abstract
Microbial degradation is an important option for combating antibiotic pollution. Arthrobacter nicotianae OTC-16 was isolated as a novel tetracycline-degrading bacterium, which could degrade oxytetracycline/tetracycline (OTC/TET). Toxicity assessment indicated that this bacterium effectively converted OTC into byproducts with less toxicity to bacterial and algal indicators. Six degradation products of OTC were tentatively identified, and a potential biotransformation pathway was proposed that includes decarbonylation, reduction, and dehydration. Bioaugmentation of TC removal with this bacterium was further studied in various matrices. In aqueous media, strain OTC-16 accelerated OTC removal over a temperature range of 20-35 ℃, pH range of 6.0-9.0, and OTC concentration range of 25-150 mg L-1. The strain also facilitated the decrease of OTC and TET concentrations in both swine and chicken manures, with a maximum decrease of 91.54%, and increased the degradation of OTC in soils by 8.22-45.45%. A unique advantage of this bacterium in promoting OTC degradation in alkaline environments was demonstrated, where it successfully competed with the indigenous microbiota and largely decreased the relative abundances of the studied tetracycline resistance genes (tetB and tetW) in soil. This work offers a better understanding of the antibiotic bioaugmentation and new microbial sources.
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Affiliation(s)
- Yanke Shi
- College of Forest and Biotechnology, Zhejiang A & F University, Hangzhou 311300, China; The Institute of Environment, Resources, Soil and Fertilizers, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
| | - Hui Lin
- The Institute of Environment, Resources, Soil and Fertilizers, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
| | - Junwei Ma
- The Institute of Environment, Resources, Soil and Fertilizers, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
| | - Rongrong Zhu
- College of Forest and Biotechnology, Zhejiang A & F University, Hangzhou 311300, China; The Institute of Environment, Resources, Soil and Fertilizers, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
| | - Wanchun Sun
- The Institute of Environment, Resources, Soil and Fertilizers, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
| | - Xiaoyan Lin
- China National Rice Research Institute, Hangzhou 310006, China.
| | - Jin Zhang
- The Institute of Environment, Resources, Soil and Fertilizers, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
| | - Huabao Zheng
- College of Environmental and Resource Sciences, State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou 311300, China.
| | - Xin Zhang
- College of Forest and Biotechnology, Zhejiang A & F University, Hangzhou 311300, China.
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70
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Yin B, Zhang M, Zeng Y, Chen H, Fan T, Wu Z, Cao L, Zhao Q. The changes of antioxidant system and intestinal bacteria in earthworms (Metaphire guillelmi) on the enhanced degradation of tetracycline. CHEMOSPHERE 2021; 265:129097. [PMID: 33279238 DOI: 10.1016/j.chemosphere.2020.129097] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/22/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
Tetracycline (TC) in soil severely imperils food security and ecosystem function. Metaphire guillelmi is a common species in farmland. It could impact the degradation of antibiotics. However, how it affects is rarely unknown. Hence, the present study aimed to investigate the effects of M. guillelmi on the TC degradation in soil and the changes of the antioxidant system and intestinal bacteria in M. guillelmi. The treatments that M. guillelmi was inoculated on soil contaminated with different TC concentrations were contrasted with those without M. guillelmi. After 21 days, the degradation rate of TC significantly increased by 13.70%, 18.14% and 29.01% at 10, 50 and 100 mg kg -1 TC dose, respectively, due to the inoculation of M. guillelmi. The half-life of TC was also shortened nearly by 1/3 to 2/3. Superoxide dismutase (SOD) increased in a dose-dependent manner with the increase of TC concentration on the 7th and 14th day. Catalase (CAT) and glutathione S-transferase (GST) presented an inverted U-shaped dose response on the 7th day, and the peak of enzyme activities occurred at TC concentration of 0.1, 1 mg kg -1 (CAT) and 0.1 mg kg -1 (GST). Malondialdehyde (MDA) contents did not change significantly. At the phylum level, only Verrucomicrobia significantly decreased under 1 mg kg -1 and 100 mg kg -1 TC dose. Genus Paracoccus, Singulisphaera, Acinetobacter and Bacillus significantly increased and became the dominant bacterium during the TC degradation. Overall, the antioxidant system and intestinal bacteria of M. guillelmi were affected by the different concentrations of TC pollution, which provided new ideas for the research of mechanism of TC degradation by earthworms in the future.
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Affiliation(s)
- Bangyi Yin
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Manrui Zhang
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yuxiao Zeng
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Haowen Chen
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Tianxinzhi Fan
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Zexuan Wu
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Linkui Cao
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Qi Zhao
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
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71
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Xu L, Zhang H, Xiong P, Zhu Q, Liao C, Jiang G. Occurrence, fate, and risk assessment of typical tetracycline antibiotics in the aquatic environment: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 753:141975. [PMID: 33207448 DOI: 10.1016/j.scitotenv.2020.141975] [Citation(s) in RCA: 297] [Impact Index Per Article: 99.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/09/2020] [Accepted: 08/23/2020] [Indexed: 05/03/2023]
Abstract
Tetracyclines (TCs), used as human and veterinary medicines, are the most widely used antibiotics. More than 75% of TCs are excreted in an active form and released into the environment through human and animal urine and feces, causing adverse effects on the ecological system and human health. Few articles review the environmental occurrence and behaviors of TCs, as well as their risks and toxicities. Here, we comprehensively summarized the recent advances on the following important issues: (1) Environmental occurrence of TCs. TCs are used globally and their occurrence in the aquatic environment has been documented, including surface water, groundwater, drinking water, wastewater, sediment, and sludge. (2) Environmental behaviors of TCs, particularly the fate of TCs in wastewater treatment plants (WWTPs). Most WWTPs cannot effectively remove TCs from wastewater, so alternative methods for efficient removal of TCs need to be developed. The latest degradation methods of TCs are summarized, including adsorption, photocatalytic, photochemical and electrochemical, and biological degradations. (3) Toxicities and possible risks of TCs. The toxicological data of TCs indicate that several TCs are more toxic to algae than fish and daphnia. Risk assessments based on individual compound exposure indicate that the risks arising from the current concentrations of TCs in the aquatic environment cannot be ignored.
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Affiliation(s)
- Longyao Xu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - He Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ping Xiong
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qingqing Zhu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chunyang Liao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; Institute of Environment and Health, Jianghan University, Wuhan, Hubei 430056, China; Institute of Environment and Health, Hangzhou Institute for Advanced Study, UCAS, Hangzhou, Zhejiang 310000, China.
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; Institute of Environment and Health, Jianghan University, Wuhan, Hubei 430056, China; Institute of Environment and Health, Hangzhou Institute for Advanced Study, UCAS, Hangzhou, Zhejiang 310000, China
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Liu Y, Pang Y, Yang L, Ning S, Wang D, Wu Z. Responses of Hydrocharis dubia (Bl.) Backer and Trapa bispinosa roxb. to tetracycline exposure. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 202:110890. [PMID: 32593096 DOI: 10.1016/j.ecoenv.2020.110890] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 06/09/2020] [Accepted: 06/10/2020] [Indexed: 06/11/2023]
Abstract
The presence of tetracycline is ubiquitous and has adverse effects on aquatic systems. A hydroponic experiment was conducted to investigate the ecological sensitivity of Hydrocharis dubia (Bl.) Backer and Trapa bispinosa Roxb. Exposed to different concentrations of tetracycline (0, 0.1, 1, 10, 30 and 50 mg/L) for one day (1D) and 14 days (14D). The results showed that after 1D of tetracycline exposure, the physiological indices of H. dubia had no remarkable change except for proline which was significantly stimulated under 0.1 mg/L tetracycline. For T. bispinosa, guaiacol peroxidase (POD), polyphenol oxidase (PPO) and ascorbate peroxidase (APX) activity and protein and proline content were notably promoted under different concentrations of tetracycline, but PPO activity was significantly decreased in 50 mg/L. After 14D, tetracycline caused no harm to the growth and protein content of H. dubia, but negatively influenced lipid peroxidation product and chlorophyll content in H. dubia under high tetracycline concentrations. Superoxide dismutase (SOD) and POD activity of H. dubia significantly increased at high tetracycline concentrations, while catalase (CAT) and PPO activity significantly decreased. APX activity in H. dubia increased with tetracycline concentrations at low tetracycline concentrations. For T. bispinosa, high concentrations of tetracycline application significantly inhibited its growth and the content of protein and chlorophyll. SOD, POD, CAT, and PPO activity of T. bispinosa were induced under different concentrations of tetracycline and no lipid peroxidation was observed. APX activity in T. bispinosa was significantly inhibited at high tetracycline concentrations. The results suggest that tetracycline can cause oxidative damage in H. dubia but harm the metabolism process of T. bispinosa without inducing oxidative damage. Overall, the sensitivity of T. bispinosa exposed to tetracycline exposure is higher than that of H. dubia.
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Affiliation(s)
- Yilin Liu
- Water Pollution Ecology Laboratory, College of Life Sciences, Wuhan University, Wuhan, 430072, Hubei, PR China
| | - Yijian Pang
- Water Pollution Ecology Laboratory, College of Life Sciences, Wuhan University, Wuhan, 430072, Hubei, PR China
| | - Lu Yang
- Water Pollution Ecology Laboratory, College of Life Sciences, Wuhan University, Wuhan, 430072, Hubei, PR China
| | - Shiqi Ning
- Water Pollution Ecology Laboratory, College of Life Sciences, Wuhan University, Wuhan, 430072, Hubei, PR China
| | - Donghan Wang
- Water Pollution Ecology Laboratory, College of Life Sciences, Wuhan University, Wuhan, 430072, Hubei, PR China
| | - Zhonghua Wu
- Water Pollution Ecology Laboratory, College of Life Sciences, Wuhan University, Wuhan, 430072, Hubei, PR China.
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Tong M, Li X, Luo Q, Yang C, Lou W, Liu H, Du C, Nie L, Zhong Y. Effects of humic acids on biotoxicity of tetracycline to microalgae Coelastrella sp. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.101962] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Wang W, Wan Q, Li Y, Ge J, Feng F, Yu X. Application of an Endophyte Enterobacter sp. TMX13 to Reduce Thiamethoxam Residues and Stress in Chinese Cabbage ( Brassica chinensis L). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:9180-9187. [PMID: 32806115 DOI: 10.1021/acs.jafc.0c03523] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A strain of thiamethoxam-degrading endophyte, named TMX13, was isolated from roots of mulberry (Morus alba L.) and was identified as Enterobacter sp. Inoculating Chinese cabbage (Brassica chinensis L) with strain TMX13-gfp (gfp-labeled TMX13) could significantly reduce thiamethoxam residues in the aboveground part (edible portion) of the vegetable. The theoretical daily intake (TDI) of thiamethoxam via consumption of TMX13-gfp inoculated Chinese cabbage was 0.17 μg/kg body weight per day, far less than the prescribed acceptable daily intake (ADI) for this pesticide. TMX13-gfp colonization could increase the leaf chlorophyll content and plant biomass and promote the development of plant roots. Compared with the uninoculated treatment, the contents of malondialdehyde (MDA) and hydrogen peroxide (H2O2) and the activity of superoxide dismutase (SOD) in leaves of the TMX13-gfp inoculated plants decreased by 18.4%-60.2%, suggesting that TMX13-gfp colonization could alleviate the oxidative stress induced by thiamethoxam exposure. The total amounts of organic acids and amino acids in root exudates from the TMX13-gfp inoculated Chinese cabbage decreased by 9.2% and 85.2%, respectively. Results of this study lead to the conclusion that the isolated endophyte Enterobacter sp. TMX13 could reduce thiamethoxam residues in edible vegetables, promote plant growth, and alleviate the phytotoxic effects induced by thiamethoxam exposure.
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Affiliation(s)
- Wenfeng Wang
- Key Laboratory of Food Quality and Safety of Jiangsu Province, State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture, Nanjing 210014, China
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 50 Zhongling Street, Nanjing 210014, China
| | - Qun Wan
- Key Laboratory of Food Quality and Safety of Jiangsu Province, State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture, Nanjing 210014, China
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 50 Zhongling Street, Nanjing 210014, China
| | - Yixin Li
- Key Laboratory of Food Quality and Safety of Jiangsu Province, State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture, Nanjing 210014, China
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 50 Zhongling Street, Nanjing 210014, China
| | - Jing Ge
- Key Laboratory of Food Quality and Safety of Jiangsu Province, State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture, Nanjing 210014, China
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 50 Zhongling Street, Nanjing 210014, China
| | - Fayun Feng
- Key Laboratory of Food Quality and Safety of Jiangsu Province, State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture, Nanjing 210014, China
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 50 Zhongling Street, Nanjing 210014, China
| | - Xiangyang Yu
- Key Laboratory of Food Quality and Safety of Jiangsu Province, State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture, Nanjing 210014, China
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 50 Zhongling Street, Nanjing 210014, China
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Han Q, Zheng Y, Qi Q, Peng J, Song J, Guo J, Guo J. Involvement of oxidative stress in the sensitivity of two algal species exposed to roxithromycin. ECOTOXICOLOGY (LONDON, ENGLAND) 2020; 29:625-633. [PMID: 32297057 DOI: 10.1007/s10646-020-02192-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/03/2020] [Indexed: 06/11/2023]
Abstract
Algal species Raphidocelis subcapitata and Chlorella vulgaris are commonly used to test the chemicals with an antibacterial mode of action during marketing authorization process. However, significant differences in the sensitivity toward antibiotic exposure have been reported. The selection of an inappropriate test species would thus underestimate the environmental hazard of target chemicals and pose a potential threat to the ecosystem. Since oxidative stress is a crucial factor determining the inhibition of algal growth, an investigation on oxidative stress and antioxidant defense mechanisms in these two species was performed to explore its roles in species sensitivity. Here, roxithromycin (ROX), a macrolide antibiotic extensively used to treat respiratory, urinary and soft tissue infections, was used for testing. After 7 days exposure to ROX at the low (0.01 mg L-1) and high (0.09 mg L-1) concentrations, R. subcapitata was inhibited while the growth of C. vulgaris was stimulated. We investigated the roles of oxidative stress in algae by measuring the oxidative stress biomarkers (MDA), non-enzymatic antioxidants (GSH), and antioxidant enzymes (SOD, CAT, GP, GST). The results suggested that when the growth of algae is inhibited, MDA content as well as activities of oxidative stress enzymes would increase, and thus, activating the antioxidant system. On the contrary, it was inferred that when the growth is stimulated, MDA content and oxidative stress enzymes activities would decrease.
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Affiliation(s)
- Qizhi Han
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, 710127, Xi'an, China
| | - Yuan Zheng
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, 710127, Xi'an, China
| | - Qianju Qi
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, 710127, Xi'an, China
| | - Jianglin Peng
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, 710127, Xi'an, China
| | - Jinxi Song
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, 710127, Xi'an, China
| | - Jipu Guo
- State Grid Shaanxi Electric Power Research Institute, 710100, Xi'an, China
| | - Jiahua Guo
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, 710127, Xi'an, China.
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76
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Li Y, Ma Y, Yang L, Duan S, Zhou F, Chen J, Liu Y, Zhang B. Effects of azithromycin on feeding behavior and nutrition accumulation of Daphnia magna under the different exposure pathways. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 197:110573. [PMID: 32278825 DOI: 10.1016/j.ecoenv.2020.110573] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/26/2020] [Accepted: 03/31/2020] [Indexed: 05/03/2023]
Abstract
Antibiotics had been paid more and more attention to their toxicity to non-target aquatic organisms in the aquatic environment. As azithromycin (AZI) was an important antibiotic pollutant in water, its toxicity to aquatic organisms had been investigated. In this study, the potential aquatic ecological risk of AZI was identified by assessing the toxicity on the feeding behavior and physiological function of Daphnia magna (D. magna) under the different exposure pathways (aqueous phase exposure vs. food phase exposure). For the food Chlorella pyrenoidosa (C. pyrenoidosa), AZI could inhibit the growth and nutrition accumulation with concentration- and time-response relationship. For D. magna, the feeding behavior was inhibited by AZI under the aqueous phase exposure pathway. However, the feeding behavior was inhibited firstly and then reversed into promotion in the low and medium concentration groups and was continually promoted in the high concentration group under the food phase exposure pathway. The accumulation of polysaccharides and total protein were decreased in D. magna n the high concentration group under the aqueous phase exposure pathway, while the accumulation of polysaccharides and crude fat were decreased in the high concentration group under the food phase exposure pathway. The activity of amylase (AMS) and trypsin in D. magna were decreased after exposure to AZI under the aqueous phase exposure pathway. On the other hand, the activity of AMS in the medium and high concentration groups was decreased under the food phase exposure pathway, but the activity of trypsin was decreased in the medium concentration group and increased in the high concentration group. The levels of ROS in D. magna were also measured and increased in both exposure pathways except in the low concentration group under the food phase exposure pathway, indicating the oxidative stress injury of D. magna. Our results showed that AZI could affect the digestive enzyme activities and oxidative stress-antioxidative system, ultimately leading to the change of D. magna's feeding behavior and nutrition accumulation. These results also provided a comprehensive perspective to evaluate the toxic effects of non-lethal dose antibiotics to non-target aquatic organisms via different exposure pathways.
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Affiliation(s)
- Yang Li
- Department of Physiology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, 430030, China; School of Engineering, China Pharmaceutical University, Nanjing, 211198, China
| | - Yunfeng Ma
- School of Engineering, China Pharmaceutical University, Nanjing, 211198, China
| | - Likun Yang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Shengzi Duan
- School of Engineering, China Pharmaceutical University, Nanjing, 211198, China
| | - Fanqi Zhou
- School of Engineering, China Pharmaceutical University, Nanjing, 211198, China
| | - Jianqiu Chen
- School of Engineering, China Pharmaceutical University, Nanjing, 211198, China
| | - Yanhua Liu
- School of Engineering, China Pharmaceutical University, Nanjing, 211198, China.
| | - Bin Zhang
- Department of Physiology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, 430030, China.
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Zhang Y, Zhang X, Guo R, Zhang Q, Cao X, Suranjana M, Liu Y. Effects of florfenicol on growth, photosynthesis and antioxidant system of the non-target organism Isochrysis galbana. Comp Biochem Physiol C Toxicol Pharmacol 2020; 233:108764. [PMID: 32294556 DOI: 10.1016/j.cbpc.2020.108764] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 04/06/2020] [Accepted: 04/08/2020] [Indexed: 12/20/2022]
Abstract
Florfenicol (FFC) is one of the most universally used antibiotics in aquaculture, which is substitute for chloramphenicol extensively, while the massive residues in aquatic environment were assumed to threaten the non-target organisms. Present research investigated the effects of florfenicol on growth, chlorophyll content, photosynthesis, and antioxidant ability of Isochrysis galbana. The results showed that FFC at 0.001-1 mg/L stimulated the growth of I. galbana and increased the content of chlorophyll. In addition, photosynthesis of I. galbana was inhibited and the photosynthetic parameters were uplifted with the increased exposure duration and FFC concentration. Furthermore, superoxide dismutase (SOD), catalase (CAT) activity significantly dropped at 0.01-20 mg/L FFC, while the contents of malondialdehyde (MDA), glutathione (GSH) and reactive oxygen species (ROS) increased after 72 h exposure, indicating that FFC at high concentrations caused a serious oxidative stress on algae. The simultaneous increase of ROS disrupted the equilibration between oxidants and antioxidant systems. Under the high concentration of FFC, the excessive of ROS was generated in algae which affected the membrane permeability and further decreased the cell biomass. Present study showed that acute exposure (72 h) at the environmental relevant concentration (0.01 mg/L) cannot induce the physiological dysfunction of the microalgae I. galbana, but the feeding concentration (20 mg/L) can. Additionally, this study hinted the possible negative impacts on ecosystems with the chronic exposure even at low FFC concentration or with the uncontrolled use of FFC.
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Affiliation(s)
- Yingqi Zhang
- College of Marine Science and Environment, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China; Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China
| | - Xianyu Zhang
- College of Marine Science and Environment, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China; Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China
| | - Rui Guo
- College of Marine Science and Environment, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China; Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China
| | - Qian Zhang
- College of Marine Science and Environment, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China; Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China.
| | - Xupeng Cao
- Dalian institute of chemical physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Mehjabin Suranjana
- Agroforestry and Environmental Sciences, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh
| | - Ying Liu
- College of Marine Science and Environment, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China; Key Laboratory of Environment Controlled Aquaculture, Ministry of Education, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China
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78
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Zhao F, Zhang D, Xu C, Liu J, Shen C. The enhanced degradation and detoxification of chlortetracycline by Chlamydomonas reinhardtii. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 196:110552. [PMID: 32259759 DOI: 10.1016/j.ecoenv.2020.110552] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 03/25/2020] [Accepted: 03/27/2020] [Indexed: 06/11/2023]
Abstract
Nowadays, numerous studies have focused on the newly developed technologies for the thorough removal of tetracyclines (TCs). However, it is often ignored that the parent TCs have limited stability in aquatic environments. Thus, this study selected green alga Chlamydomonas reinhardtii with high chlorophyll content to rapidly degrade chlortetracycline (CTC) into products with low toxicity. As the results shown, the half-life times of CTC (1 × 10-6 mol/L) decreased from 10.35 h to 2.55 h by the presence of C. reinhardtii at 24±1 °C with 12/12 h dark/light cycle. The main transformation products were iso-chlortetracycline (ICTC), 4-epi-iso-chlortetracycline (EICTC), and other degradation products with lower molecular weight. The toxicity evaluation shows that the negative effects of CTC on growth rate and soluble protein content of green algae were significantly alleviated after the enhanced degradation treatment, while the generation of reactive oxygen species (ROS) and antioxidant response in algal cells returned to normal levels. The chlorophyll of algae played an important role of photosensitizer, which catalyzed the photo-induced electron/energy transfer of CTC degradation. The ROS generation of algae also was also inseparable from the enhanced degradation of CTC, especially when the chlorophyll was damaged at the high CTC concentration. Based on these results, we can better select suitable algal species to further strengthen the degradation of antibiotics and effectively reduce the environmental risk of CTC in aqueous system.
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Affiliation(s)
- Feng Zhao
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China
| | - Di Zhang
- Anhui Hemei Environmental Protection Group co., Ltd, Hefei, 230088, PR China
| | - Chenye Xu
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, PR China
| | - Jianshe Liu
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China
| | - Chensi Shen
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China.
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Wu Y, Wan L, Zhang W, Ding H, Yang W. Resistance of cyanobacteria Microcystis aeruginosa to erythromycin with multiple exposure. CHEMOSPHERE 2020; 249:126147. [PMID: 32062559 DOI: 10.1016/j.chemosphere.2020.126147] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 02/04/2020] [Accepted: 02/06/2020] [Indexed: 06/10/2023]
Abstract
Here we report a set of experiments in which water blooming cyanobacteria Microcystis aeruginosa was repeatedly exposed to erythromycin. Growth inhibition increased with increasing erythromycin concentration (1-150 μg/L) upon first exposure. Maximum inhibition rate (76.06%), occurred under 150 μg/L erythromycin. Moreover, 96-h 50% effective concentration (EC50) was 22.97 μg/L, indicating that the growth of M. aeruginosa was affected by erythromycin under common environmental concentrations. Photosynthesis was hindered by chlorophyll and photosystem II limitations. Malondialdehyde, reactive oxygen species, and superoxide dismutase contents increased significantly under certain concentrations of erythromycin, but superoxide dismutase was suppressed by 150 μg/L erythromycin. Synthesis of intracellular and extracellular microcystins was promoted by 10-60 and by 20-60 μg/L erythromycin, respectively, but both were inhibited by 100-150 μg/L. Principal component analysis and Pearson's correlation revealed the accumulation of reactive oxygen species as the dominant mechanism of erythromycin toxicity to cells. M. aeruginosa repeatedly subjected to erythromycin exposure showed obvious resistance against the antibiotic, especially when treated twice with 60 μg/L erythromycin. The 96-h EC50 was 81.29 μg/L. As compared to the first exposure to erythromycin, photosynthetic and antioxidant activities increased, while growth inhibition and oxidation stress decreased upon multiple exposures. Production and release of microcystins were enhanced by repeated exposure to the antibiotic. Thus, erythromycin persistence in water should be examined, as repeated exposure may lead to serious environmental and human health hazards.
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Affiliation(s)
- Yixiao Wu
- Key Laboratory for Biomass -Resource Chemistry and Environmental Biotechnology of Hubei Province, School of Resource and Environmental Sciences, Wuhan University, Wuhan, 430072, China
| | - Liang Wan
- Key Laboratory for Biomass -Resource Chemistry and Environmental Biotechnology of Hubei Province, School of Resource and Environmental Sciences, Wuhan University, Wuhan, 430072, China
| | - Weihao Zhang
- Key Laboratory for Biomass -Resource Chemistry and Environmental Biotechnology of Hubei Province, School of Resource and Environmental Sciences, Wuhan University, Wuhan, 430072, China.
| | - Huijun Ding
- Jiangxi Provincial Key Laboratory of Water Resources and Environment of Poyang Lake, Jiangxi Provincial Institute of Water Sciences, Nanchang, 330029, China
| | - Wenfeng Yang
- Key Laboratory for Biomass -Resource Chemistry and Environmental Biotechnology of Hubei Province, School of Resource and Environmental Sciences, Wuhan University, Wuhan, 430072, China
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80
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A Mild Method for Preparation of Highly Selective Magnetic Biochar Microspheres. Int J Mol Sci 2020; 21:ijms21113752. [PMID: 32466534 PMCID: PMC7313027 DOI: 10.3390/ijms21113752] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 05/21/2020] [Accepted: 05/23/2020] [Indexed: 12/26/2022] Open
Abstract
We report the use of biochar and Fe3O4 nanoparticles as co-stabilizers for oil-in-water (o/w) Pickering emulsion. The emulsion is subsequently used to prepare magnetic tetracycline-imprinted biochar composite microspheres (MMIPMs) with good uniformity and high selectivity. The MMIPMs were characterized by scanning electron microscopy (SEM), Brunner-Emmet-Teller (BET) measurements, Fourier transform infrared spectrometry (FT-IR), X-ray diffraction (XRD), vibrating sample magnetometer (VSM) and thermogravimetry analysis (TGA). The adsorption properties of tetracycline to the MMIPMs were investigated using different adsorption experiments including adsorption kinetic experiment, equilibrium binding experiment, selectivity evaluation and competitive adsorption tests. The theoretical maximum adsorption capacity of the MMIPMs (15.45 mg g−1) was greater than that of the raw biochar (2.10 mg g−1) and non-imprinted biochar composite microspheres (3.39 mg g−1) for tetracycline. Further, the MMIPMs were used as adsorbent for magnetic solid phase extraction (SPE) for the extraction of tetracycline present in drinking water, milk, fish and chicken samples. Under optimal conditions, the results showed good recovery yield ranging from 88.41% to 106.29% with a relative standard deviation (RSD) ranging from 0.35% to 6.83%, respectively.
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81
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Long S, Yang Y, Pavlostathis SG, Xiang F, Sun P, Li N, Zhao L. Toxicity of tetracycline and its transformation products to a phosphorus removing Shewanella strain. CHEMOSPHERE 2020; 246:125681. [PMID: 31896014 DOI: 10.1016/j.chemosphere.2019.125681] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 12/10/2019] [Accepted: 12/16/2019] [Indexed: 06/10/2023]
Abstract
Tetracycline (TC) as an emerging contaminant has raised serious concerns about its toxicity and removal in wastewater treatment processes. The more toxic transformation products of TC, 4-epitetracycline (ETC), anhydrotetracycline (ATC) and 4-epianhydrotetracycline (EATC) are also widely detected. This study investigated the antibacterial and bactericidal activity of TC, ETC, ATC, EATC against Shewanella sp, using Escherichia coli and Pseudomonas aeruginosa strains as quality controls. Further, batch assays were conducted to investigate the inhibition of these antibiotics on the phosphorus removal of the Shewanella strain, and removal mechanisms of TC and its transformation products (TCs). The inhibition on phosphorus removal by the Shewanella strain at 20 mg L-1 was in the order of ATC > EATC > TC > ETC. COD removal, poly-P accumulation and glycogen synthesis by the Shewanella strain were also inhibited. Biodegradation was the main removal mechanism of TC and ETC, while adsorption was the main one of ATC and EATC. This study helps to further understand the structure-activity relationship of TC.
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Affiliation(s)
- Sha Long
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China; School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0512, USA
| | - Yongkui Yang
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Spyros G Pavlostathis
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0512, USA
| | - Feng Xiang
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Peizhe Sun
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Na Li
- Central Laboratory of Tianjin Academy of Agricultural Sciences, Tianjin, 300381, China
| | - Lin Zhao
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China.
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Li J, Min Z, Li W, Xu L, Han J, Li P. Interactive effects of roxithromycin and freshwater microalgae, Chlorella pyrenoidosa: Toxicity and removal mechanism. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 191:110156. [PMID: 31958625 DOI: 10.1016/j.ecoenv.2019.110156] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 12/30/2019] [Accepted: 12/31/2019] [Indexed: 06/10/2023]
Abstract
Roxithromycin (ROX) has received increasing concern due to its large usage, ubiquitous detection in environment and high ecotoxicology risk. This study investigated the acute and chronic effects of ROX on the growth, chlorophyll, antioxidant enzymes, and malonaldehyde (MDA) content of Chlorella pyrenoidosa, as well as the removal mechanism of ROX during microalgae cultivation. The calculated 96 h median effective concentration of ROX on yield (EyC50) and specific growth rate (ErC50) of C. pyrenoidosa was 0.81 and 2.87 mg/L, respectively. After 96 h exposure, 1.0 ~ 2.0 mg/L of ROX significantly inhibited the synthesis of chlorophyll and promoted the activities of SOD and CAT (p < 0.05). The MDA content increased with the ROX concentration increasing from 0.5 ~ 1.0 mg/L, and then decreased to 105.76% of the control exposure to 2.0 mg/L ROX, demonstrating the oxidative damage could be moderated by the upregulation of SOD and CAT activities. During the 21 d chronic exposure, low concentration of ROX (0.1 and 0.25 mg/L) showed no significant effect on the growth and chlorophyll content of algae during the first 14 d, but significantly inhibited the growth of algae and the synthesis of chlorophyll at 21 d (p < 0.05 or p < 0.01). 1.0 mg/L ROX significantly inhibited the growth of microalgae during 3 ~ 21 d and the synthesis of chlorophyll at 7 ~ 21 d. High concentration and long-term exposure of low concentration of ROX caused the SOD and CAT activities and MDA content to increase, demonstrating a higher level of oxidative damage of microalgae. During the first 14 d, abiotic removal of ROX played a more important role, contributing about 12.21% ~ 21.37% of ROX removal. After 14 d, the biodegradation of ROX by C. pyrenoidosa gradually became a more important removal mechanism, contributing about 45.99% ~ 53.30% of ROX removal at 21 d. Bio-adsorption and bioaccumulation both played minor roles in the removal of ROX during algae cultivation.
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Affiliation(s)
- Jiping Li
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Longpan Road 159, Nanjing, 210037, Jiangsu, China; State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Science, Nanjing, 210008, Jiangsu, China
| | - Zhongfang Min
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Longpan Road 159, Nanjing, 210037, Jiangsu, China
| | - Wei Li
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Longpan Road 159, Nanjing, 210037, Jiangsu, China; State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Science, Nanjing, 210008, Jiangsu, China.
| | - Lijie Xu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Longpan Road 159, Nanjing, 210037, Jiangsu, China
| | - Jiangang Han
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Longpan Road 159, Nanjing, 210037, Jiangsu, China; State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Science, Nanjing, 210008, Jiangsu, China
| | - Pingping Li
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Longpan Road 159, Nanjing, 210037, Jiangsu, China.
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Zhu Y, Wei M, Pan Z, Li L, Liang J, Yu K, Zhang Y. Ultraviolet/peroxydisulfate degradation of ofloxacin in seawater: Kinetics, mechanism and toxicity of products. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 705:135960. [PMID: 31841917 DOI: 10.1016/j.scitotenv.2019.135960] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 12/02/2019] [Accepted: 12/04/2019] [Indexed: 06/10/2023]
Abstract
The ultraviolet/peroxydisulfate (UV/PDS) system was used to degrade ofloxacin (OFL) in fresh water, synthetic marine aquaculture water and synthetic seawater. The comparison of the reaction degradation rate constants proved that the order of reaction rate was the following: synthetic seawater (0.77 min-1) > synthetic marine aquaculture water (0.74 min-1) > freshwater (0.30 min-1). Bromide (Br-) and bicarbonate (HCO3-) promote the degradation of OFL, whereas chloride (Cl-) inhibits the degradation. The piperazine ring of OFL was the main reactive group, and atoms N1, C6, C7 and N2 were identified as the reaction sites. Based on the intermediate and final products, the possible degradation pathways of OFL in the three kinds of water were proposed. Additionally, during the UV/PDS treatment of synthetic marine aquaculture water containing Cl- and Br-, the oxidation products of OFL showed a slight toxicity to Chlorella pyrenoidosa (C. pyrenoidosa) and Priacanthus tayenus (P. tayenus). The maximum growth inhibition rate of the products to C. pyrenoidosa was 9.72%. The products also caused liver cells of P. tayenus to be damaged and reduced the species richness and diversity of intestinal microorganism. Nevertheless, compared with the products degraded by traditional disinfection methods using NaClO, the biological toxicities were much lower. UV/PDS can be used for seawater as a new alternative disinfection method.
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Affiliation(s)
- Yunjie Zhu
- School of Marine Sciences, Guangxi University, Nanning 530004, China
| | - Min Wei
- School of Marine Sciences, Guangxi University, Nanning 530004, China
| | - Zihan Pan
- School of Marine Sciences, Guangxi University, Nanning 530004, China
| | - Leiyun Li
- School of Marine Sciences, Guangxi University, Nanning 530004, China
| | - Jiayuan Liang
- School of Marine Sciences, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, China
| | - Kefu Yu
- School of Marine Sciences, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, China
| | - Yuanyuan Zhang
- School of Marine Sciences, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, China.
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Thiagarajan V, Natarajan L, Seenivasan R, Chandrasekaran N, Mukherjee A. Tetracycline affects the toxicity of P25 n-TiO 2 towards marine microalgae Chlorella sp. ENVIRONMENTAL RESEARCH 2019; 179:108808. [PMID: 31606618 DOI: 10.1016/j.envres.2019.108808] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 10/06/2019] [Accepted: 10/06/2019] [Indexed: 06/10/2023]
Abstract
Pollutants such as n-TiO2 and tetracycline enter the marine environment through various sources starting from their production until disposal. Hence, it is vital to determine the interactive effect of one pollutant with the other when they coexist in the environment. In the present study, the effect of antibiotic - tetracycline (TC) on the toxicity of P25 n-TiO2 was studied with marine microalgae, Chlorella sp. The impact of TC (1 mg L-1) on five different concentrations of n-TiO2 (0.25, 0.5, 1, 2 and 4 mg L-1) under both visible and UV-A illuminations was evaluated. Effective diameter of n-TiO2 in ASW at 0th h increased from 690.69 ± 19.55 nm (0.25 mg L-1) to 1183.04 ± 37.10 nm (0.25 mg L-1 + 1 mg L-1) and 971.51 ± 14.61 nm (4 mg L-1) to 1324.12 ± 11.59 nm (4 mg L-1 + 1 mg L-1) in presence of TC. A significant increase in the toxicity of 4 mg L-1 n-TiO2 upon the addition of TC (68.16 ± 0.37% under visible and 80.21 ± 0.3% under UV-A condition) was observed. No significant difference in toxicity was observed between visible and UV-A illuminations. Further the toxicity data was corroborated through the measurement of oxidative stress and antioxidant enzyme activities. Independent action model showed antagonistic effect for lower concentrations of n-TiO2 and additive effect for higher concentrations of n-TiO2 when present in mixture with TC under both illuminations. For the higher mixture concentration of 4 mg L-1 n-TiO2 and 1 mg L-1 TC, the percentage TC removal was about 55.29% and 30% and the corresponding TOC removal was found to be 54.29% and 31.04% under visible and UV-A illuminations respectively. The site of ROS generation in Chlorella sp. was identified with electron transfer chain inhibitors. Both mitochondria and chloroplast acted as the site for the ROS generation in Chlorella sp. The SEM images of the algal cells upon exposure to n-TiO2 and mixture revealed the aggregation of cells and distortion of cell membrane.
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Affiliation(s)
- Vignesh Thiagarajan
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore, 632014, India
| | - Lokeshwari Natarajan
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore, 632014, India
| | - R Seenivasan
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore, 632014, India
| | - N Chandrasekaran
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore, 632014, India
| | - Amitava Mukherjee
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore, 632014, India.
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