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Nie C, Geng X, Zhang R, Wang L, Li L, Chen J. Abundant Cyanobacteria in Autumn Adhering to the Heating, Ventilation, and Air-Conditioning (HVAC) in Shanghai. Microorganisms 2023; 11:1835. [PMID: 37513007 PMCID: PMC10386019 DOI: 10.3390/microorganisms11071835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
Cyanobacteria are ever-present, mainly flourishing in aquatic environments and surviving virtually in other habitats. The microbiota of indoor dust on the pre-filter of heating, ventilation, and air-conditioning (HVAC) systems, which reflect indoor microbial contamination and affect human health, has attracted attention. Contemporary studies on cyanobacteria deposited on the pre-filter of HVAC remain scant. By the culture-independent approach of qPCR and high throughput sequencing technologies, our results documented that the cyanobacterial concentrations were highest in autumn, occurred recurrently, and were about 2.60 and 10.57-fold higher than those in winter and summer. We proposed that aquatic and terrestrial cyanobacteria contributed to the pre-filter of HVAC by airborne transportation produced by wave breaks, bubble bursts, and soil surface by wind force, owing to the evidence that cyanobacteria were commonly detected in airborne particulate matters. The cyanobacteria community structure was characterized in Shanghai, where Chroococcidiopsaceae, norank_cyanobacteriales, Nostocaceae, Paraspirulinaceae, and others dominated the dust on the pre-filter of HVAC. Some detected genera, including Nodularia sp., Pseudanabaena sp., and Leptolyngbya sp., potentially produced cyanobacterial toxins, which need further studying to determine their potential threat to human health. The present work shed new insight into cyanobacteria distribution in the specific environment besides aquatic habitats.
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Affiliation(s)
- Changliang Nie
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science & Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Fudan University, Shanghai 200438, China
| | - Xueyun Geng
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science & Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Fudan University, Shanghai 200438, China
| | - Runqi Zhang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science & Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Fudan University, Shanghai 200438, China
| | - Lina Wang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science & Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Fudan University, Shanghai 200438, China
| | - Ling Li
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science & Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Fudan University, Shanghai 200438, China
| | - Jianmin Chen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science & Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Fudan University, Shanghai 200438, China
- IRDR International Center of Excellence on Risk Interconnectivity and Governance on Weather/Climate Extremes Impact and Public Health, Institute of Atmospheric Sciences, Fudan University, Shanghai 200438, China
- Institute of Eco-Chongming (IEC), Shanghai 200062, China
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2
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Chen Y, Li X, Gao W, Zhang Y, Mo A, Jiang J, He D. Microfiber-loaded bacterial community in indoor fallout and air-conditioner filter dust. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 856:159211. [PMID: 36206901 DOI: 10.1016/j.scitotenv.2022.159211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/26/2022] [Accepted: 09/30/2022] [Indexed: 06/16/2023]
Abstract
Microfibers (MFs) are widely existed in indoor air; however, characteristic of microbiota on MFs is largely unknown. In this study, air-borne MFs were collected from fallout or air-conditioner (AC) filter dust in three types of indoor space including living room, dormitory and office. Both plastic and natural MFs were identified by Fourier transform infrared spectroscopy. Ultramicroscopic observation showed dense biofilms adhering on surfaces of MFs. Fallout MFs contained more bacteria but fewer fungi than MFs from AC filter dust. MFs-loaded bacteria were of highest abundance in living rooms, following dormitories and offices. Bacterial community and its diversity were further analyzed by 16S rRNA High-throughput sequencing. Up to 4540 of bacterium OTUs were shared in these MFs samples, unique OTUs in fallout and AC filter samples accounting for 26.3 % and 25.7 % of the total. Compared to MFs fallout, AC filter MFs contained more species of pathogenic bacteria, such as Betaproteobacteriales and Ralstonia, with obviously different β-diversity between two groups. Phenotypic analysis showed that fallout and AC filter MFs bacteria presented high index values of film formation, oxidative stress tolerance and potential pathogenicity. Overall, these results suggest that abundant bacteria including pathogen can be loaded on MFs, and would pose health risks through delivery of indoor MFs.
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Affiliation(s)
- Yingxin Chen
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Xinyu Li
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Wei Gao
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, East China Normal University, Shanghai 200241, China
| | - Yalin Zhang
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Aoyun Mo
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Jie Jiang
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, East China Normal University, Shanghai 200241, China
| | - Defu He
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, East China Normal University, Shanghai 200241, China; Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, East China Normal University, Shanghai 200241, China; Technology Innovation Center for Land Spatial Eco-restoration in Metropolitan Area, Ministry of Natural Resources, Shanghai 200062, China.
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3
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Ryon KA, Tierney BT, Frolova A, Kahles A, Desnues C, Ouzounis C, Gibas C, Bezdan D, Deng Y, He D, Dias-Neto E, Elhaik E, Afshin E, Grills G, Iraola G, Suzuki H, Werner J, Udekwu K, Schriml L, Bhattacharyya M, Oliveira M, Zambrano MM, Hazrin-Chong NH, Osuolale O, Łabaj PP, Tiasse P, Rapuri S, Borras S, Pozdniakova S, Shi T, Sezerman U, Rodo X, Sezer ZH, Mason CE. A history of the MetaSUB consortium: Tracking urban microbes around the globe. iScience 2022; 25:104993. [PMID: 36299999 PMCID: PMC9589169 DOI: 10.1016/j.isci.2022.104993] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The MetaSUB Consortium, founded in 2015, is a global consortium with an interdisciplinary team of clinicians, scientists, bioinformaticians, engineers, and designers, with members from more than 100 countries across the globe. This network has continually collected samples from urban and rural sites including subways and transit systems, sewage systems, hospitals, and other environmental sampling. These collections have been ongoing since 2015 and have continued when possible, even throughout the COVID-19 pandemic. The consortium has optimized their workflow for the collection, isolation, and sequencing of DNA and RNA collected from these various sites and processing them for metagenomics analysis, including the identification of SARS-CoV-2 and its variants. Here, the Consortium describes its foundations, and its ongoing work to expand on this network and to focus its scope on the mapping, annotation, and prediction of emerging pathogens, mapping microbial evolution and antibiotic resistance, and the discovery of novel organisms and biosynthetic gene clusters.
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Affiliation(s)
- Krista A. Ryon
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY USA
- Weill Cornell Medicine, New York, NY, USA
| | - Braden T. Tierney
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY USA
- Weill Cornell Medicine, New York, NY, USA
| | - Alina Frolova
- Institute of Molecular Biology and Genetics of NASU, Kyiv, Ukraine
- Kyiv Academic University, Kyiv, Ukraine
| | - Andre Kahles
- ETH Zurich, Zurich, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Christelle Desnues
- Mediterranean Institute of Oceanography, 163 Avenue de Luminy Bâtiment Méditerranée, 13288, Marseille Cedex 9, France
| | | | | | - Daniela Bezdan
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany
- GermanyNGS Competence Center Tübingen (NCCT), University of Tübingen, Tübingen, Germany
- yuri GmbH, Meckenbeuren, Germany
| | - Youping Deng
- Department of Quantitative Health Sciences, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI 96813, USA
| | - Ding He
- University of Copenhagen, Copenhagen, Denmark
| | | | | | - Evan Afshin
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY, USA
| | | | - Gregorio Iraola
- Institut Pasteur de Montevideo, Mataojo 2020, Montevideo, 11400, Uruguay
| | | | - Johannes Werner
- High Performance and Cloud Computing Group, Zentrum für Datenverarbeitung (ZDV), Eberhard Karls University of Tübingen, Tübingen, Germany
| | - Klas Udekwu
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Lynn Schriml
- University of Maryland School of Medicine, University of Maryland, Baltimore, MD, USA
| | | | | | | | | | | | | | | | - Sampath Rapuri
- The Community Lab; Los Alamos Makers, Los Alamos, NM 87544, USA
| | - Silvia Borras
- Barcelona Institute for Global Health, Rosselló, 132, 708036 Barcelona, Spain
| | - Sofya Pozdniakova
- Barcelona Institute for Global Health, Rosselló, 132, 708036 Barcelona, Spain
| | - Tieliu Shi
- East China Normal University, Zhongshan Rd (N), 3663, 200050 Shanghai, Putuo, China
| | - Ugur Sezerman
- Department of Biostatistics, Acibadem University, Istanbul, Turkey
| | - Xavier Rodo
- Barcelona Institute for Global Health, Rosselló, 132, 708036 Barcelona, Spain
| | | | - Christopher E. Mason
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY, USA
- WorldQuant Initiative for Quantitative Prediction, New York, NY, USA
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4
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Jiang S, Sun B, Zhu R, Che C, Ma D, Wang R, Dai H. Airborne microbial community structure and potential pathogen identification across the PM size fractions and seasons in the urban atmosphere. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 831:154665. [PMID: 35314242 DOI: 10.1016/j.scitotenv.2022.154665] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 03/14/2022] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
As a vital component of airborne bioaerosols, bacteria and fungi seriously endanger human health as pathogens and allergens. However, comprehensive effects of environmental variables on airborne microbial community structures remain poorly understood across the PM sizes and seasons. We collected atmospheric PM1.0, PM2.5, and PM10 samples in Hefei, a typical rapidly-developing city in East China, across three seasons, and performed a comprehensive analysis of airborne microbial community structures using qPCR and high-throughput sequencing. Overall the bacterial and fungal abundances in PM1.0 were one to two orders of magnitude higher than those in PM2.5 and PM10 across seasons, but their α-diversity tended to increase from PM1.0 to PM10. The bacterial gene abundances showed a strong positive correlation (P < 0.05) with atmospheric SO2 and NO2 concentrations and air quality index. The bacterial gene abundances were significantly higher (P = 0.001) than fungi, and the bacterial diversity showed stronger seasonality. The PM sizes influenced distribution patterns for airborne microbial communities within the same season. Source-tracking analysis indicated that soils, plants, human and animal feces represented important sources of airborne bacteria with a total relative abundance of more than 60% in summer, but total abundance from the unidentified sources surpassed in fall and winter. Total 10 potential bacterial and 12 potential fungal pathogens were identified at the species level with the highest relative abundances in summer, and their abundances increased with the PM sizes. Together, our results indicated that a complex set of environmental factors, including water-soluble ions in PM, changes in air pollutant levels and meteorological conditions, and shifts in the relative importance of available microbial sources, acted to control the seasonal compositions of microbial communities in the urban atmosphere.
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Affiliation(s)
- Shaoyi Jiang
- Institute of Polar Environment & Anhui Key Laboratory of Polar Environment and Global Change, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
| | - Bowen Sun
- Institute of Polar Environment & Anhui Key Laboratory of Polar Environment and Global Change, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
| | - Renbin Zhu
- Institute of Polar Environment & Anhui Key Laboratory of Polar Environment and Global Change, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China.
| | - Chenshuai Che
- Institute of Polar Environment & Anhui Key Laboratory of Polar Environment and Global Change, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
| | - Dawei Ma
- State Grid Anhui Electric Power Research Institute, Hefei 230601, China
| | - Runfang Wang
- State Grid Anhui Electric Power Research Institute, Hefei 230601, China
| | - Haitao Dai
- Institute of Polar Environment & Anhui Key Laboratory of Polar Environment and Global Change, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
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5
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Jiang X, Wang C, Guo J, Hou J, Guo X, Zhang H, Tan J, Li M, Li X, Zhu H. Global Meta-analysis of Airborne Bacterial Communities and Associations with Anthropogenic Activities. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:9891-9902. [PMID: 35785964 PMCID: PMC9301914 DOI: 10.1021/acs.est.1c07923] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Airborne microbiome alterations, an emerging global health concern, have been linked to anthropogenic activities in numerous studies. However, these studies have not reached a consensus. To reveal general trends, we conducted a meta-analysis using 3226 air samples from 42 studies, including 29 samples of our own. We found that samples in anthropogenic activity-related categories showed increased microbial diversity, increased relative abundance of pathogens, increased co-occurrence network complexity, and decreased positive edge proportions in the network compared with the natural environment category. Most of the above conclusions were confirmed using the samples we collected in a particular period with restricted anthropogenic activities. Additionally, unlike most previous studies, we used 15 human-production process factors to quantitatively describe anthropogenic activities. We found that microbial richness was positively correlated with fine particulate matter concentration, NH3 emissions, and agricultural land proportion and negatively correlated with the gross domestic product per capita. Airborne pathogens showed preferences for different factors, indicating potential health implications. SourceTracker analysis showed that the human body surface was a more likely source of airborne pathogens than other environments. Our results advance the understanding of relationships between anthropogenic activities and airborne bacteria and highlight the role of airborne pathogens in public health.
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Affiliation(s)
- Xiaoqing Jiang
- State
Key Laboratory for Turbulence and Complex Systems, Department of Biomedical
Engineering, College of Future Technology, Peking University, Beijing 100871, China
- Center
for Quantitative Biology, Peking University, Beijing 100871, China
| | - Chunhui Wang
- School
of Life Sciences, Peking University, Beijing 100871, China
| | - Jinyuan Guo
- State
Key Laboratory for Turbulence and Complex Systems, Department of Biomedical
Engineering, College of Future Technology, Peking University, Beijing 100871, China
- Center
for Quantitative Biology, Peking University, Beijing 100871, China
- Department
of Biomedical Engineering, Georgia Institute
of Technology and Emory University, Atlanta, Georgia 30332, United States
| | - Jiaheng Hou
- State
Key Laboratory for Turbulence and Complex Systems, Department of Biomedical
Engineering, College of Future Technology, Peking University, Beijing 100871, China
- Center
for Quantitative Biology, Peking University, Beijing 100871, China
| | - Xiao Guo
- State
Key Laboratory for Turbulence and Complex Systems, Department of Biomedical
Engineering, College of Future Technology, Peking University, Beijing 100871, China
- Center
for Quantitative Biology, Peking University, Beijing 100871, China
| | - Haoyu Zhang
- State
Key Laboratory for Turbulence and Complex Systems, Department of Biomedical
Engineering, College of Future Technology, Peking University, Beijing 100871, China
- Center
for Quantitative Biology, Peking University, Beijing 100871, China
| | - Jie Tan
- State
Key Laboratory for Turbulence and Complex Systems, Department of Biomedical
Engineering, College of Future Technology, Peking University, Beijing 100871, China
- Center
for Quantitative Biology, Peking University, Beijing 100871, China
| | - Mo Li
- School
of Life Sciences, Peking University, Beijing 100871, China
| | - Xin Li
- School
of Life Sciences, Peking University, Beijing 100871, China
- Beijing
National Day School, Beijing 100039, China
| | - Huaiqiu Zhu
- State
Key Laboratory for Turbulence and Complex Systems, Department of Biomedical
Engineering, College of Future Technology, Peking University, Beijing 100871, China
- Center
for Quantitative Biology, Peking University, Beijing 100871, China
- Department
of Biomedical Engineering, Georgia Institute
of Technology and Emory University, Atlanta, Georgia 30332, United States
- . Phone: 8610-6276-7261
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6
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Peimbert M, Alcaraz LD. Where environmental microbiome meets its host: subway and passenger microbiome relationships. Mol Ecol 2022; 32:2602-2618. [PMID: 35318755 DOI: 10.1111/mec.16440] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 03/12/2022] [Accepted: 03/16/2022] [Indexed: 12/17/2022]
Abstract
Subways are urban transport systems with high capacity. Every day around the world, there are more than 150 million subway passengers. Since 2013, thousands of microbiome samples from various subways worldwide have been sequenced. Skin bacteria and environmental organisms dominate the subway microbiomes. The literature has revealed common bacterial groups in subway systems; even so, it is possible to identify cities by their microbiome. Low-frequency bacteria are responsible for specific bacterial fingerprints of each subway system. Furthermore, daily subway commuters leave their microbial clouds and interact with other passengers. Microbial exchange is quite fast; the hand microbiome changes within minutes, and after cleaning the handrails, the bacteria are re-established within minutes. To investigate new taxa and metabolic pathways of subway microbial communities, several high-quality metagenomic-assembled genomes (MAG) have been described. Subways are harsh environments unfavorable for microorganism growth. However, recent studies have observed a wide diversity of viable and metabolically active bacteria. Understanding which bacteria are living, dormant, or dead allows us to propose realistic ecological interactions. Questions regarding the relationship between humans and the subway microbiome, particularly the microbiome effects on personal and public health, remain unanswered. This review summarizes our knowledge of subway microbiomes and their relationship with passenger microbiomes.
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Affiliation(s)
- Mariana Peimbert
- Departamento de Ciencias Naturales, Unidad Cuajimalpa, Universidad Autónoma Metropolitana. Ciudad de México, México
| | - Luis D Alcaraz
- Departamento de Biología Celular, Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad de México, México
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7
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Sun Y, Meng Y, Ou Z, Li Y, Zhang M, Chen Y, Zhang Z, Chen X, Mu P, Norbäck D, Zhao Z, Zhang X, Fu X. Indoor microbiome, air pollutants and asthma, rhinitis and eczema in preschool children - A repeated cross-sectional study. ENVIRONMENT INTERNATIONAL 2022; 161:107137. [PMID: 35168186 DOI: 10.1016/j.envint.2022.107137] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/02/2022] [Accepted: 02/05/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Indoor microbiome exposure is associated with asthma, rhinitis and eczema. However, no studies report the interactions between environmental characteristics, indoor microbiome and health effects in a repeated cross-sectional framework. METHODS 1,279 and 1,121 preschool children in an industrial city (Taiyuan) of China were assessed for asthma, rhinitis and eczema symptoms in 2012 and 2019 by self-administered questionnaires, respectively. Bacteria and fungi in classroom vacuum dust were characterized by culture-independent amplicon sequencing. Multi-level logistic/linear regression was performed in two cross-sectional and two combined models to assess the associations. RESULTS The number of observed species in bacterial and fungal communities in classrooms increased significantly from 2012 to 2019, and the compositions of the microbial communities were drastically changed (p < 0.001). The temporal microbiome variation was significantly larger than the spatial variation within the city (p < 0.001). Annual average outdoor SO2 concentration decreased by 60.7%, whereas NO2 and PM10 concentrations increased by 63.3% and 40.0% from 2012 to 2019, which were both associated with indoor microbiome variation (PERMANOVA p < 0.001). The prevalence of asthma (2.0% to 3.3%, p = 0.06) and rhinitis (28.0% to 25.3%, p = 0.13) were not significantly changed, but the prevalence of eczema was increased (3.6% to 7.0%; p < 0.001). Aspergillus subversicolor, Collinsella and Cutibacterium were positively associated with asthma, rhinitis and eczema, respectively (p < 0.01). Prevotella, Lactobacillus iners and Dolosigranulum were protectively (negatively) associated with rhinitis (p < 0.01), consistent with previous studies in the human respiratory tract. NO2 and PM10 concentrations were negatively associated with rhinitis in a bivariate model, but a multivariate mediation analysis revealed that Prevotella fully mediated the health effects. CONCLUSIONS This is the first study to report the interactions between environmental characteristics, indoor microbiome and health in a repeated cross-sectional framework. The mediating effects of indoor microorganisms suggest incorporating biological with chemical exposure for a comprehensive exposure assessment.
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Affiliation(s)
- Yu Sun
- Institute of Environmental Science, Shanxi University, Taiyuan, PR China; Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou 510642, Guangdong, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, Guangdong, PR China; Key Laboratory of Zoonosis of the Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, Guangdong, PR China
| | - Yi Meng
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou 510642, Guangdong, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, Guangdong, PR China; Key Laboratory of Zoonosis of the Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, Guangdong, PR China
| | - Zheyuan Ou
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou 510642, Guangdong, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, Guangdong, PR China; Key Laboratory of Zoonosis of the Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, Guangdong, PR China
| | - Yanling Li
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou 510642, Guangdong, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, Guangdong, PR China; Key Laboratory of Zoonosis of the Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, Guangdong, PR China
| | - Mei Zhang
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou 510642, Guangdong, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, Guangdong, PR China; Key Laboratory of Zoonosis of the Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, Guangdong, PR China
| | - Yang Chen
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou 510642, Guangdong, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, Guangdong, PR China; Key Laboratory of Zoonosis of the Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, Guangdong, PR China
| | - Zefei Zhang
- Institute of Environmental Science, Shanxi University, Taiyuan, PR China
| | - Xingyi Chen
- Institute of Environmental Science, Shanxi University, Taiyuan, PR China
| | - Peiqiang Mu
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou 510642, Guangdong, PR China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, Guangdong, PR China; Key Laboratory of Zoonosis of the Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, Guangdong, PR China
| | - Dan Norbäck
- Occupational and Environmental Medicine, Dept. of Medical Science, University Hospital, Uppsala University, 75237 Uppsala, Sweden
| | - Zhuohui Zhao
- Department of Environmental Health, School of Public Health, Fudan University, Key Laboratory of Public Health Safety of the Ministry of Education, NHC Key Laboratory of Health Technology Assessment (Fudan University), Shanghai Typhoon Institute/CMA, Shanghai Key Laboratory of Meteorology and Health, Shanghai 200030, China
| | - Xin Zhang
- Institute of Environmental Science, Shanxi University, Taiyuan, PR China.
| | - Xi Fu
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510006, PR China; Guangdong Provincial Engineering Research Center of Public Health Detection and Assessment, Guangdong Pharmaceutical University, Guangzhou, PR China.
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SILVA LUIZMARCIODA, SANTIAGO MARIANAB, AGUIAR PAULAAUGUSTAFDE, RAMOS SALVADORB, SILVA MURILOVDA, MARTINS CARLOSHENRIQUEG. Detection of Waterborne and Airborne Microorganisms in a Rodent Facility. AN ACAD BRAS CIENC 2022; 94:e20220150. [DOI: 10.1590/0001-3765202220220150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 06/03/2022] [Indexed: 11/22/2022] Open
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9
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Xu C, Chen H, Liu Z, Sui G, Li D, Kan H, Zhao Z, Hu W, Chen J. The decay of airborne bacteria and fungi in a constant temperature and humidity test chamber. ENVIRONMENT INTERNATIONAL 2021; 157:106816. [PMID: 34399240 DOI: 10.1016/j.envint.2021.106816] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 08/02/2021] [Accepted: 08/03/2021] [Indexed: 06/13/2023]
Abstract
Despite substantial research to profile the microbial characteristics in the atmosphere, the changing metabolism underpinning microbial successional dynamics remains ambiguous. Herein, we applied qPCR, high-throughput sequencing of the genes encoding 16S and ITS rRNA to render the bacterial/fungal dynamics of ambient PM2.5 filters maintained at constant conditions of temperature (20 ± 2 °C) and humidity (50 ± 5%). The incubation experiments which lasted for 50 days aim to simulate a metabolic process of microbe in two types PM2.5 (polluted and non-polluted). The results show that microbial community species in polluted PM2.5 had faster decay rates, more bacterial diversity and less fungal community compared to the non-polluted ones. For bacteria, the proportion of anaerobic species is higher than aerobic ones, and their performance of contain mobile elements, form-biofilms, and pathogenic risks declined rapidly as times went by. Whereas for fungi, saprotroph species occupied about 70% of the population, resulting in a specified peak of abundance due to the adequacy nutrients supplied by the apoptosis cells. Combining the classified microbial species, we found stable community structure and the volatile ones related to the various metabolic survival strategies during different time. Without the input of peripheral environment, the health risks of airborne microbe descend to a healthy level after 20 days, implying their biologic effectiveness was about 20 days no matter the air is polluted or not. This study provided new insights into the different metabolic survival of airborne microorganisms in ideal and stable conditions.
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Affiliation(s)
- Caihong Xu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science & Engineering, Fudan Tyndall Centre, Institute of Atmospheric Sciences, Fudan University, Shanghai 200438, China
| | - Hui Chen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science & Engineering, Fudan Tyndall Centre, Institute of Atmospheric Sciences, Fudan University, Shanghai 200438, China; IRDR International Center of Excellence on Risk Interconnectivity and Governance on Weather/Climate Extremes Impact and Public Health, Institute of Atmospheric Sciences, Fudan University, Shanghai 200438, China
| | - Zhe Liu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science & Engineering, Fudan Tyndall Centre, Institute of Atmospheric Sciences, Fudan University, Shanghai 200438, China
| | - Guodong Sui
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science & Engineering, Fudan Tyndall Centre, Institute of Atmospheric Sciences, Fudan University, Shanghai 200438, China
| | - Dan Li
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science & Engineering, Fudan Tyndall Centre, Institute of Atmospheric Sciences, Fudan University, Shanghai 200438, China
| | - Haidong Kan
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science & Engineering, Fudan Tyndall Centre, Institute of Atmospheric Sciences, Fudan University, Shanghai 200438, China; IRDR International Center of Excellence on Risk Interconnectivity and Governance on Weather/Climate Extremes Impact and Public Health, Institute of Atmospheric Sciences, Fudan University, Shanghai 200438, China; School of Public Health, Key Lab of Public Health Safety of the Ministry of Education, NHC Key Laboratory of Health Technology Assessment, Fudan University, Shanghai 200032, China
| | - Zhuohui Zhao
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science & Engineering, Fudan Tyndall Centre, Institute of Atmospheric Sciences, Fudan University, Shanghai 200438, China; School of Public Health, Key Lab of Public Health Safety of the Ministry of Education, NHC Key Laboratory of Health Technology Assessment, Fudan University, Shanghai 200032, China
| | - Wei Hu
- School of Earth System Science, Tianjin University, Tianjin 300072, China
| | - Jianmin Chen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environmental Science & Engineering, Fudan Tyndall Centre, Institute of Atmospheric Sciences, Fudan University, Shanghai 200438, China; IRDR International Center of Excellence on Risk Interconnectivity and Governance on Weather/Climate Extremes Impact and Public Health, Institute of Atmospheric Sciences, Fudan University, Shanghai 200438, China; Institute of Eco-Chongming (IEC), Shanghai 200062, China.
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10
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Zhou Y, Leung MHY, Tong X, Lee JYY, Lee PKH. City-Scale Meta-Analysis of Indoor Airborne Microbiota Reveals that Taxonomic and Functional Compositions Vary with Building Types. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:15051-15062. [PMID: 34738808 DOI: 10.1021/acs.est.1c03941] [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] [Indexed: 06/13/2023]
Abstract
Currently, there is a lack of understanding on the variations of the indoor airborne microbiotas of different building types within a city, and how operational taxonomic unit (OTU)- and amplicon sequence variant (ASV)-based analyses of the 16S rRNA gene sequences affect interpretation of the indoor airborne microbiota results. Therefore, in this study, the indoor airborne bacterial microbiotas between commercial buildings, residences, and subways within the same city were compared using both OTU- and ASV-based analytic methods. Our findings suggested that indoor airborne bacterial microbiota compositions were significantly different between building types regardless of the bioinformatics method used. The processes of ecological drift and random dispersal consistently played significant roles in the assembly of the indoor microbiota across building types. Abundant taxa tended to be more centralized in the correlation network of each building type, highlighting their importance. Taxonomic changes between the microbiotas of different building types were also linked to changes in their inferred metabolic function capabilities. Overall, the results imply that customized strategies are necessary to manage indoor airborne bacterial microbiotas for each building type or even within each specific building.
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Affiliation(s)
- You Zhou
- School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
| | - Marcus H Y Leung
- School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
| | - Xinzhao Tong
- School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
| | - Justin Y Y Lee
- School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
| | - Patrick K H Lee
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong SAR, China
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11
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Seasonal Variation Characteristics of Bacteria and Fungi in PM2.5 in Typical Basin Cities of Xi’an and Linfen, China. ATMOSPHERE 2021. [DOI: 10.3390/atmos12070809] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Microorganisms existing in airborne fine particulate matter (PM2.5) have key implications in biogeochemical cycling and human health. In this study, PM2.5 samples, collected in the typical basin cities of Xi’an and Linfen, China, were analyzed through high-throughput sequencing to understand microbial seasonal variation characteristics and ecological functions. For bacteria, the highest richness and diversity were identified in autumn. The bacterial phyla were dominated by Proteobacteria, Actinobacteria, Firmicutes, and Bacteroidetes. Metabolism was the most abundant pathway, with the highest relative abundance found in autumn. Pathogenic bacteria (Pseudomonas, Acinetobacter, Serratia, and Delftia) were positively correlated with most disease-related pathways. Besides, C cycling dominated in spring and summer, while N cycling dominated in autumn and winter. The relative abundance of S cycling was highest during winter in Linfen. For fungi, the highest richness was found in summer. Basidiomycota and Ascomycota mainly constituted the fungal phyla. Moreover, temperature (T) and sulfur dioxide (SO2) in Xi’an, and T, SO2, and nitrogen dioxide (NO2) in Linfen were the key factors affecting microbial community structures, which were associated with different pollution characteristics in Xi’an and Linfen. Overall, these results provide an important reference for the research into airborne microbial seasonal variations, along with their ecological functions and health impacts.
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12
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Zhou Y, Leung MHY, Tong X, Lai Y, Tong JCK, Ridley IA, Lee PKH. Profiling Airborne Microbiota in Mechanically Ventilated Buildings Across Seasons in Hong Kong Reveals Higher Metabolic Activity in Low-Abundance Bacteria. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:249-259. [PMID: 33346641 DOI: 10.1021/acs.est.0c06201] [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] [Indexed: 05/21/2023]
Abstract
Metabolically active bacteria within built environments are poorly understood. This study aims to investigate the active airborne bacterial microbiota and compare the total and active microbiota in eight mechanically ventilated buildings over four consecutive seasons using the 16S rRNA gene (rDNA) and the 16S rRNA (rRNA), respectively. The relative abundances of the taxa of presumptive occupants and environmental origins were significantly different between the active and total microbiota. The Sloan neutral model suggested that ecological drift and random dispersal played a smaller role in the assembly of the active microbiota than the total microbiota. The seasonal nature of the active microbiota was consistent with that of the total microbiota in both indoor and outdoor environments, while only the indoor environment was significantly affected by geography. The relative abundances of the active and total taxa were positively correlated, suggesting that the high-abundance members were also the greatest contributors to the community-level metabolic activity. Based on the rRNA/rDNA ratio, the low-abundance members consistently had a higher taxon-level metabolic activity than the high-abundance members over seasons, suggesting that the low-abundance members may have the ability to survive and thrive in the indoor environment and their impact on the health of occupants cannot be overlooked.
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Affiliation(s)
- You Zhou
- School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
| | - Marcus H Y Leung
- School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
| | - Xinzhao Tong
- School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
| | - Yonghang Lai
- School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
| | - Jimmy C K Tong
- Building Sustainability Group, Arup, Hong Kong SAR, China
| | - Ian A Ridley
- School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
| | - Patrick K H Lee
- School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
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