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Rajasekar A, Qiu M, Wang B, Murava RT, Norgbey E. Relationship between water quality, heavy metals and antibiotic resistance genes among three freshwater lakes. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:64. [PMID: 34993654 DOI: 10.1007/s10661-021-09704-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/23/2021] [Indexed: 06/14/2023]
Abstract
Urban recreational lakes are impacted by consistent anthropogenic activities and are significant sources of heavy metals and antibiotic resistance genes (ARGs). In this study, three urban lakes of varying size and anthropogenic impact in Nanjing, China, were investigated for the abundance of ten ARGs, six physicochemical factors and four heavy metals. Correlations between heavy metals and physicochemical parameters against ARGs were performed to investigate the presence of ARGs in the lakes. The water quality data indicated that the lakes were on par with levels 3 and 4 of the Chinese surface water environmental standards, signifying disturbing pollution levels in the lakes. The lakes were dominant with high amounts of sul1, sul2 and strA genes, and the sum of these three genes appropriated over 38.9-84.4% in all three lakes, while the sum of tetM, tetQ and ermB genes occupied a minor proportion (0.1-1.4%). High levels of vancomycin resistance genes were found in the three lakes. Spearman analysis indicated that Chlα, cadmium, lead and copper had a significant positive correlation with sul2 and strB. The results of redundancy analysis displayed that Chlα and co-selection with certain heavy metals were the major factors driving the propagation of specific genes in three lakes. We believe our study contributes by adding further knowledge to existing antibiotic resistance gene abundance studies in recreational urban lakes with significant anthropogenic impacts.
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Affiliation(s)
- Adharsh Rajasekar
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CIC-AEET), Nanjing University of Information Science & Technology, Nanjing, 210044, China.
| | - Mengru Qiu
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CIC-AEET), Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Bangguo Wang
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Raphinos Tackmore Murava
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CIC-AEET), Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Eyram Norgbey
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CIC-AEET), Nanjing University of Information Science & Technology, Nanjing, 210044, China
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Yuan P, Wu X, Xia Y, Peng C, Tong H, Liu J, Jiang L, Wang X. Spatial and seasonal variations and risk assessment for heavy metals in surface sediments of the largest river-embedded reservoir in China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:35556-35566. [PMID: 32594442 DOI: 10.1007/s11356-020-09868-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 06/23/2020] [Indexed: 06/11/2023]
Abstract
The sediment acts as not only sink but also source of heavy metals in aquatic environment, which may cause the endogenous pollution in drinking water reservoirs. In this work, we collected the surface sediments from Qingcaosha Reservoir, the largest river-embedded reservoir in China, and investigated the spatial distribution, risk, and sources of heavy metals in four seasons. Significant spatial and seasonal heterogeneity could be found in the distribution of five heavy metals (Cr, Cu, Mn, Zn, and Ni) in the surface sediments. The highest concentrations of the five metals were detected in the sediments from the reservoir downstream, especially in summer and next spring. The geo-accumulation index (Igeo) and enrichment factor (EF) suggest that the sediment pollution caused by single metal was heavier in summer than in other seasons. Also, the Nemerow pollution index (PIN) manifests that the synergetic pollution induced by five metals was most serious in summer, followed by next spring. However, the potential ecological risk index (PERI) indicates that none of these metals caused potential ecological risk in four seasons. Comprehensive analysis demonstrates that the sediment pollution gradually increased from autumn to winter and then to next spring. Principal component analysis shows that the main pollution source of five heavy metals may come from industrial wastewater and domestic sewage, which was almost independent of seasons. This work can provide data support for the subsequent seasonal optimization of drinking water quality and reservoir management.
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Affiliation(s)
- Peng Yuan
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Xuefei Wu
- Shanghai National Engineering Research Center of Urban Water Resources Co., Ltd., Shanghai, 200082, China
| | - Yuqi Xia
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Cheng Peng
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China.
- Shanghai National Engineering Research Center of Urban Water Resources Co., Ltd., Shanghai, 200082, China.
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China.
| | - Hong Tong
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Jianshe Liu
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China
| | - Lei Jiang
- Shanghai National Engineering Research Center of Urban Water Resources Co., Ltd., Shanghai, 200082, China
| | - Xianyun Wang
- Shanghai National Engineering Research Center of Urban Water Resources Co., Ltd., Shanghai, 200082, China
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Qian L, Duan H, Yan J, Tsang YF, Qiao J, Fu X, Wang L. Can multiple harvests of plants improve nitrogen removal from the point-bar soil of lake? JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 249:109371. [PMID: 31404853 DOI: 10.1016/j.jenvman.2019.109371] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 07/28/2019] [Accepted: 08/05/2019] [Indexed: 06/10/2023]
Abstract
Point bar areas around lakes can provide ecological service functions. For example, plants growing on point bars absorb and remove nutrients from the soil and water. However, if the point-bar plants are unregulated, in the fall and winter, plant debris will decompose, releasing nutrients that then enter the water body and cause eutrophication. Therefore, any harvesting should be managed. But how to harvest plants and how often to harvest them, and there is little research on these. In this study, the point bar at Qingcaosha Reservoir was used to study the effects of three plant harvesting modes (M1: unharvested; M2: one harvest in the fall; and M3: one harvest in summer and one in the fall) on the removal of nitrogen (N) from point-bar soil. The largest amount of N was removed by the plants when the M3 mode was used (26.93 g/m2). However, the M2 mode removed the most N from the soil during the plant growth season (81.62 g/m2), which implied that the nitrification and denitrification effects of soil microorganisms make the largest contribution to N removal from this point-bar soil. The nitrification and denitrification activity of microorganisms was higher for M2 than for M1 and M3 in the following year. Additionally, summer harvesting (M3) had a negative effect on nitrification efficiency in the current season because anaerobic bacteria in the soil significantly increased and nitrifying bacteria significantly decreased after harvesting. However, after a period of recovery, the number of microbial nitrifiers increased again and nitrification activity rose in the following year. The reduction in oxygen supply after harvesting may be the main reason for low nitrification in the current season, but it was beneficial to nitrification and denitrification in the following year because there was luxuriant plant growth. Therefore, when considering both the current season and the following year, harvesting should not be too frequent and one harvest in the fall (M2) led to the largest removal of N from the soil.
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Affiliation(s)
- Liwei Qian
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Security, China
| | - Hao Duan
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Security, China
| | - Jianfang Yan
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Security, China
| | - Yiu Fai Tsang
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, New Territories, Hong Kong SAR, China
| | - Junlian Qiao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Xiaohua Fu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Security, China
| | - Lei Wang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Security, China.
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Field Research on Mixing Aeration in a Drinking Water Reservoir: Performance and Microbial Community Structure. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16214221. [PMID: 31683509 PMCID: PMC6862099 DOI: 10.3390/ijerph16214221] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/23/2019] [Accepted: 10/29/2019] [Indexed: 11/20/2022]
Abstract
Field research on the performance of pollutant removal and the structure of the microbial community was carried out on a drinking water reservoir. After one month of operation of a water-lifting aeration system, the water temperature difference between the bottom and the surface decreased from 9.9 to 3.1 °C, and the concentration of the dissolved oxygen (DO) in the bottom layer increased from 0 to 4.2 mg/L. The existing stratification in the reservoir was successfully eliminated. Total nitrogen (TN), total phosphorus (TP), and total organic carbon (TOC) concentrations were reduced by 47.8%, 66.7%, and 22.9%, respectively. High-throughput sequencing showed that Proteobacteria, Bacteroides, and Actinomycetes accounted for 67.52% to 78.74% of the total bacterial population. Differences in the bacterial changes were observed between the enhanced area and the control area. With the operation of the water-lifting aeration system, the populations of bacteria of the main genera varied temporally and spatially. Principal component analysis pointed out a clear evolution in the vertical distribution of the microbial structure controlled by the operation of the aeration system. Permutational analysis of variance showed a significant difference in the microbial community (p < 0.01). Redundancy analysis showed that physical (water temperature, DO) and chemical environmental factors (Chl-a, TOC, TN) were the key factors affecting the changes in the microbial communities in the reservoir water. In addition, a hierarchical partitioning analysis indicated that T, Chl-a, ORP, TOC, pH, and DO accounted for 24.1%, 8.7%, 6.7%, 6.2%, 5.8%, and 5.1% of such changes, respectively. These results are consistent with the ABT (aggregated boosted tree) analysis for the variations in the functional bacterial community, and provide a theoretical basis for the development and application of biotechnology.
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Driving Factors and Dynamics of Phytoplankton Community and Functional Groups in an Estuary Reservoir in the Yangtze River, China. WATER 2019. [DOI: 10.3390/w11061184] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Qingcaosha Reservoir, an estuary reservoir on the Yangtze River and a drinking water source, is facing phytoplankton blooms and the factors driving changes in phytoplankton composition and distribution have not been well understood so far. To facilitate the understanding of this problem, we collected surface water samples from January to December 2014 monthly at 12 sampling sites. A total of 205 taxa classified into eight major taxonomic groups were identified. Cyclotella meneghiniana, Melosira varians, Melosira granulata, Cryptomonas ovata and Chlorella vulgaris were the species dominating at least one season. The long stratification period and high nutrient concentration resulted in high chlorophyll a concentration (36.1 ± 18.5 μg L−1) in the midstream and downstream during summer, and mass phytoplankton growth and sedimentation process led to nutrients decrease. In the reservoir, neither P or N limitation was observed in the study period. We observed that water temperature, nutrient concentrations and light availability (Zeu/Zmix) are critical in selecting functional groups. These results highlight that the functional groups characterized the water body well and showed a good ecological status based on the assemblage index (Q average = 4.0). This work also highlights that mixing regime, water temperature and light availability were the driving factors that determine phytoplankton dynamics.
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Jiang Y, Khan A, Huang H, Tian Y, Yu X, Xu Q, Mou L, Lv J, Zhang P, Liu P, Deng L, Li X. Using nano-attapulgite clay compounded hydrophilic urethane foams (AT/HUFs) as biofilm support enhances oil-refinery wastewater treatment in a biofilm membrane bioreactor. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 646:606-617. [PMID: 30059921 DOI: 10.1016/j.scitotenv.2018.07.149] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 07/11/2018] [Accepted: 07/11/2018] [Indexed: 06/08/2023]
Abstract
Petroleum refinery wastewater (PRW) treatments based on biofilm membrane bioreactor (BF-MBR) technology is an ideal approach and biofilm supporting material is a critical factor. In this study, BF-MBR with nano-attapulgite clay compounded hydrophilic urethane foams (AT/HUFs) as a biofilm support was used to treat PRW with a hydraulic retention time of 5 h. The removal rate of 500 mg/L chemical oxygen demand (COD), 15 mg/L NH4+ and 180 NTU of turbidity were 99.73%, 97.48% and 99.99%, which were 23%, 20%, and 6% higher than in the control bioreactor, respectively. These results were comparatively higher than that observed for the sequencing batch reactor (SBR). The death rate of the Spirodela polyrrhiza (L.) irrigated with BF-MBR-treated water was 4.44%, which was similar to that of the plants irrigated with tap water (3.33%) and SBR-treated water (5.56%), but significantly lower than that irrigated with raw water (84.44%). The counts demonstrated by qPCR for total bacteria, denitrifiers, nitrite oxidizing bacteria, ammonia oxidizing bacteria, and ammonia-oxidizing archaea were also higher in BF-MBR than those obtained by SBR. Moreover, the results of 16 s rRNA sequencing have demonstrated that the wastewater remediation microbes were enriched in AT/HUFs, e.g., Acidovorax can degrade polycyclic aromatic hydrocarbons, and Sulfuritalea is an efficient nitrite degrader. In summary, BF-MBR using AT/HUF as a biofilm support improves microbiome of the actived sludge and is reliable for oil-refinery wastewater treatment.
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Affiliation(s)
- Yiming Jiang
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Tianshuinanlu #222, Lanzhou, Gansu 730000, PR China; Gansu Academy of Membrane Science and Technology, Duanjiatanlu #1272, Lanzhou, Gansu 730020, PR China; Institute of Virology (VIRO), Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany; Insitute of Virology, Technical University of Munich, Trogerstr. 30, 81675 München, Germany
| | - Aman Khan
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Tianshuinanlu #222, Lanzhou, Gansu 730000, PR China
| | - Haiying Huang
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Tianshuinanlu #222, Lanzhou, Gansu 730000, PR China; Gansu Academy of Membrane Science and Technology, Duanjiatanlu #1272, Lanzhou, Gansu 730020, PR China; Institute of Virology (VIRO), Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany; Insitute of Virology, Technical University of Munich, Trogerstr. 30, 81675 München, Germany
| | - Yanrong Tian
- Sewage Disposal Plant, Lanzhou Petrochemical Company, PetroChina, Huanxingdonglu #88, Lanzhou, Gansu 730060, PR China
| | - Xuan Yu
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Tianshuinanlu #222, Lanzhou, Gansu 730000, PR China
| | - Qiang Xu
- Gansu Academy of Membrane Science and Technology, Duanjiatanlu #1272, Lanzhou, Gansu 730020, PR China
| | - Lichao Mou
- Signal Processing in Earth Observation (SiPEO), Technische Universität München, 80333 Munich, Germany
| | - Jianguo Lv
- Gansu Academy of Membrane Science and Technology, Duanjiatanlu #1272, Lanzhou, Gansu 730020, PR China
| | - Pengyun Zhang
- Gansu Academy of Membrane Science and Technology, Duanjiatanlu #1272, Lanzhou, Gansu 730020, PR China
| | - Pu Liu
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Tianshuinanlu #222, Lanzhou, Gansu 730000, PR China
| | - Li Deng
- Institute of Virology (VIRO), Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany; Insitute of Virology, Technical University of Munich, Trogerstr. 30, 81675 München, Germany
| | - Xiangkai Li
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Tianshuinanlu #222, Lanzhou, Gansu 730000, PR China.
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Variations of Bacterial Community Composition and Functions in an Estuary Reservoir during Spring and Summer Alternation. Toxins (Basel) 2018; 10:toxins10080315. [PMID: 30082592 PMCID: PMC6116017 DOI: 10.3390/toxins10080315] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 07/31/2018] [Accepted: 08/03/2018] [Indexed: 12/21/2022] Open
Abstract
In this study, we focused on the dynamics of bacterial community composition in a large reservoir in the Yangtze estuary during spring and summer seasons, especially the variations of functional mechanisms of microbial community during the seasonal alternation between spring and summer. Both 16S rRNA gene sequencing and shotgun metagenomic sequencing technology were used for these purposes. The results indicated that obvious variations of bacterial community structures were found at different sites. Particle-associated bacterial taxa exhibited higher abundance at the inlet site, which was closer to the Yangtze River with a high level of turbidity. In other sites, Synechococcus, as the most dominant cyanobacterial species, revealed high abundance driven by increased temperature. Moreover, some heterotrophic bacterial taxa revealed high abundance following the increased Synechococcus in summer, which indicated potential correlations about carbon source utilization between these microorganisms. In addition, the shotgun metagenomic data indicated during the period of seasonal alternation between spring and summer, the carbohydrate transport and metabolism, energy production and conversion, translation/ribosomal biogenesis, and cell wall/membrane/envelope biogenesis were significantly enhanced at the exit site. However, the course of cell cycle control/division was more active at the internal site.
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Xu Z, Woodhouse JN, Te SH, Yew-Hoong Gin K, He Y, Xu C, Chen L. Seasonal variation in the bacterial community composition of a large estuarine reservoir and response to cyanobacterial proliferation. CHEMOSPHERE 2018; 202:576-585. [PMID: 29597175 DOI: 10.1016/j.chemosphere.2018.03.037] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 03/01/2018] [Accepted: 03/05/2018] [Indexed: 05/25/2023]
Abstract
This study employed high-throughput sequencing (HTS) to understand the variations in microbial community in the largest estuary reservoir located at the Yangtze River for a year. Correlations between the heterotrophic bacterial and cyanobacterial communities in the estuarine ecosystem were also investigated. Significant spatial and temporal changes were observed in the microbial community composition at all sites. These differences were mainly reflected on the variations of bacterial relative abundance. The modularity analysis on the network indicate that bacterial community response to the variations of environmental factors in the form of co-occurrence/exclusion patterns. In warm season, Synechococcus spp. being the dominant Cyanobacteria taxa exhibited high relative abundance in the reservoir. Water temperature was the critical driver for the proliferation of Synechococcus. Moreover, heterotrophic bacteria belonging to Actinobacteria, Proteobacteria (α-, β-, and γ-Proteobacteria), Bacteroidetes and Chlorobi, exhibited positive correlations with Synechococcus. The co-occurrence of these bacterial OTUs suggests that specific taxa may benefit from the proliferation of Synechococcus. In cold season, bacterial OTUs belonging to Actinobacteria and Bacteroidetes shown co-occurrence pattern with salt ions (including K+, Na+, Mg2+, Ca2+, Cl- and SO42-) inside the reservoir. In conclusion, further research is required to investigate the ecological functions of these taxa in estuarine ecosystems.
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Affiliation(s)
- Zheng Xu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, PR China
| | - Jason N Woodhouse
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, Australia; Department of Experimental Limnology, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Saffnciyt, Germany
| | - Shu Harn Te
- Department of Civil and Environmental Engineering, National University of Singapore, 138602, Singapore
| | - Karina Yew-Hoong Gin
- Department of Civil and Environmental Engineering, National University of Singapore, 138602, Singapore; NUS Environmental Research Institute (NERI), National University of Singapore, 138602, Singapore
| | - Yiliang He
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, PR China.
| | - Cong Xu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, PR China
| | - Lei Chen
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, PR China
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9
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The Effects of Antibiotics on Microbial Community Composition in an Estuary Reservoir during Spring and Summer Seasons. WATER 2018. [DOI: 10.3390/w10020154] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Wan Y, Ruan X, Zhang Y, Li R. Illumina sequencing-based analysis of sediment bacteria community in different trophic status freshwater lakes. Microbiologyopen 2017; 6. [PMID: 28173613 PMCID: PMC5552931 DOI: 10.1002/mbo3.450] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 12/19/2016] [Accepted: 12/29/2016] [Indexed: 12/30/2022] Open
Abstract
Sediment bacterial community is the main driving force for nutrient cycling and energy transfer in aquatic ecosystem. A thorough understanding of the community's spatiotemporal variation is critical for us to understand the mechanisms of cycling and transfer. Here, we investigated the sediment bacterial community structures and their relations with environmental factors, using Lake Taihu as a model system to explore the dependence of biodiversity upon trophic level and seasonality. To combat the limitations of conventional techniques, we employed Illumina MiSeq Sequencing and LeFSe cladogram to obtain a more comprehensive view of the bacterial taxonomy and their variations of spatiotemporal distribution. The results uncovered a 1,000-fold increase in the total amount of sequences harvested and a reverse relationship between trophic level and the bacterial diversity in most seasons of a year. A total of 65 phyla, 221 classes, 436 orders, 624 families, and 864 genera were identified in the study area. Delta-proteobacteria and gamma-proteobacteria prevailed in spring/summer and winter, respectively, regardless trophic conditions; meanwhile, the two classes dominated in the eutrophication and mesotrophication lake regions, respectively, but exclusively in the Fall. For LEfSe analysis, bacterial taxon that showed the strongest seasonal or spatial variation, majority had the highest abundance in spring/summer or medium eutrophication region, respectively. Pearson's correlation analysis indicated that 5 major phyla and 18 sub-phylogenetic groups showed significant correlation with trophic status. Canonical correspondence analysis further revealed that porewater NH4+ -N as well as sediment TOM and NOx -N are likely the dominant environmental factors affecting bacterial community compositions.
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Affiliation(s)
- Yu Wan
- Key Laboratory of Surficial Geochemistry Ministry of Education, Nanjing University, Nanjing, China.,School of Earth Science and Engineering, Nanjing University, Nanjing, China
| | - Xiaohong Ruan
- Key Laboratory of Surficial Geochemistry Ministry of Education, Nanjing University, Nanjing, China.,School of Earth Science and Engineering, Nanjing University, Nanjing, China
| | - Yaping Zhang
- Key Laboratory of Surficial Geochemistry Ministry of Education, Nanjing University, Nanjing, China.,School of Earth Science and Engineering, Nanjing University, Nanjing, China
| | - Rongfu Li
- Key Laboratory of Surficial Geochemistry Ministry of Education, Nanjing University, Nanjing, China.,School of Earth Science and Engineering, Nanjing University, Nanjing, China
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11
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Biological and chemical factors driving the temporal distribution of cyanobacteria and heterotrophic bacteria in a eutrophic lake (West Lake, China). Appl Microbiol Biotechnol 2016; 101:1685-1696. [DOI: 10.1007/s00253-016-7968-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 10/21/2016] [Accepted: 10/26/2016] [Indexed: 12/25/2022]
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12
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Zhang Y, Chen L, Sun R, Dai T, Tian J, Zheng W, Wen D. Temporal and spatial changes of microbial community in an industrial effluent receiving area in Hangzhou Bay. J Environ Sci (China) 2016; 44:57-68. [PMID: 27266302 DOI: 10.1016/j.jes.2015.11.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 10/30/2015] [Accepted: 11/25/2015] [Indexed: 06/06/2023]
Abstract
Anthropogenic activities usually contaminate water environments, and have led to the eutrophication of many estuaries and shifts in microbial communities. In this study, the temporal and spatial changes of the microbial community in an industrial effluent receiving area in Hangzhou Bay were investigated by 454 pyrosequencing. The bacterial community showed higher richness and biodiversity than the archaeal community in all sediments. Proteobacteria dominated in the bacterial communities of all the samples; Marine_Group_I and Methanomicrobia were the two dominant archaeal classes in the effluent receiving area. PCoA and AMOVA revealed strong seasonal but minor spatial changes in both bacterial and archaeal communities in the sediments. The seasonal changes of the bacterial community were less significant than those of the archaeal community, which mainly consisted of fluctuations in abundance of a large proportion of longstanding species rather than the appearance and disappearance of major archaeal species. Temperature was found to positively correlate with the dominant bacteria, Betaproteobacteria, and negatively correlate with the dominant archaea, Marine_Group_I; and might be the primary driving force for the seasonal variation of the microbial community.
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Affiliation(s)
- Yan Zhang
- School of Environment, Tsinghua University, Beijing 100084, China; Zhejiang Shuangyi Environmental Technology Development Co., Ltd., Jiaxing 314000, China
| | - Lujun Chen
- School of Environment, Tsinghua University, Beijing 100084, China; Zhejiang Provincial Key Laboratory of Water Science and Technology, Department of Environmental Technology and Ecology, Yangtze Delta Region Institute of Tsinghua University, Zhejiang, Jiaxing 314050, China
| | - Renhua Sun
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Tianjiao Dai
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Jinping Tian
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Wei Zheng
- Zhejiang Provincial Key Laboratory of Water Science and Technology, Department of Environmental Technology and Ecology, Yangtze Delta Region Institute of Tsinghua University, Zhejiang, Jiaxing 314050, China
| | - Donghui Wen
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China.
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Wang H, Wang N, Wang B, Zhao Q, Fang H, Fu C, Tang C, Jiang F, Zhou Y, Chen Y, Jiang Q. Antibiotics in Drinking Water in Shanghai and Their Contribution to Antibiotic Exposure of School Children. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:2692-2699. [PMID: 26849047 DOI: 10.1021/acs.est.5b05749] [Citation(s) in RCA: 143] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A variety of antibiotics have been found in aquatic environments, but antibiotics in drinking water and their contribution to antibiotic exposure in human are not well-explored. For this, representative drinking water samples and 530 urine samples from schoolchildren were selected in Shanghai, and 21 common antibiotics (five macrolides, two β-lactams, three tetracyclines, four fluoquinolones, four sulfonamides, and three phenicols) were measured in water samples and urines by isotope dilution two-dimensional ultraperformance liquid chromatography coupled with high-resolution quadrupole time-of-flight mass spectrometry. Drinking water included 46 terminal tap water samples from different spots in the distribution system of the city, 45 bottled water samples from 14 common brands, and eight barreled water samples of different brands. Of 21 antibiotics, only florfenicol and thiamphenicol were found in tap water, with the median concentrations of 0.0089 ng/mL and 0.0064 ng/mL, respectively; only florfenicol was found in three bottled water samples from a same brand, with the concentrations ranging from 0.00060 to 0.0010 ng/mL; no antibiotics were found in barreled water. In contrast, besides florfenicol and thiamphenicol, an additional 17 antibiotics were detected in urine samples, and the total daily exposure doses and detection frequencies of florfenicol and thiamphenicol based on urine samples were significantly and substantially higher than their predicted daily exposure doses and detection frequencies from drinking water by Monte Carlo Simulation. These data indicated that drinking water was contaminated by some antibiotics in Shanghai, but played a limited role in antibiotic exposure of children.
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Affiliation(s)
- Hexing Wang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University , Shanghai 200032, China
| | - Na Wang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University , Shanghai 200032, China
| | - Bin Wang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University , Shanghai 200032, China
| | - Qi Zhao
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University , Shanghai 200032, China
| | - Hong Fang
- Minhang District Center for Disease Control and Prevention , Minhang District, Shanghai 201101, China
| | - Chaowei Fu
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University , Shanghai 200032, China
| | - Chuanxi Tang
- Changning District Center for Disease Control and Prevention , Changning District, Shanghai 200051, China
| | - Feng Jiang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University , Shanghai 200032, China
| | - Ying Zhou
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University , Shanghai 200032, China
| | - Yue Chen
- School of Epidemiology, Public Health, and Preventive Medicine, Faculty of Medicine, University of Ottawa , Ottawa, Ontario K1H8M5, Canada
| | - Qingwu Jiang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University , Shanghai 200032, China
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