Comparative study of the airborne microbial communities and their functional composition in fine particulate matter (PM2.5) under non-extreme and extreme PM2.5 conditions

Aziz, Azilah Abd; Lee, Kwangyul; Park, Byeonghyeok; Park, Hong-Jae; Park, Kihong; Choi, In Geol; Chang, In Seop

doi:10.1016/j.atmosenv.2018.09.027

Cited by 51 publications

(25 citation statements)

References 58 publications

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“…Proteobacteria, Actinobacteria, Firmicutes, and Bacteroidetes were the top four abundant phyla, accounting for 86.62-93.49% (Xi'an) and 84.05-92.10% (Linfen). These four bacteria also predominated in previous studies of PM2.5 in Beijing, China; Gwangju and Seoul, South Korea; and Nagasaki, Japan [27,51,52], suggesting adaptation to various (a) (b) atmospheric environments and wide distribution as primary bacteria in the atmosphere. Proteobacteria was the most abundant phylum (38.70-58.48% (Xi'an); 32.29-47.35% (Linfen)), containing a variety of pathogens and nitrogen oxidizing bacteria [53].…”

Section: Community Compositions Of Microorganismssupporting

confidence: 55%

Seasonal Variation Characteristics of Bacteria and Fungi in PM2.5 in Typical Basin Cities of Xi’an and Linfen, China

Wang

Liu

et al. 2021

Atmosphere

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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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Section: Community Compositions Of Microorganismssupporting

confidence: 55%

Seasonal Variation Characteristics of Bacteria and Fungi in PM2.5 in Typical Basin Cities of Xi’an and Linfen, China

Wang

Liu

et al. 2021

Atmosphere

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“…In terms of fungi, the abundance of some plant pathogens increased in LA in 2016, including Phyllachoraceae, Colletotrichum, and Spizellomyces (LDA score > 2, K-W test P < 0.05) [42,43]. In 2018, the abundance of some plant pathogens reappeared in LA, including Paraglomerales, Hypocreales, and Phaeosphaeria (LDA score > 2, K-W test P < 0.05) [44,45]. However, some fungi associated with AMF and endomycorrhizae formation were also promoted by LA in 2018, including Diversisporales and Acaulospora (LDA score > 2, K-W test P < 0.05) [46,47].…”

Section: The Effects Of Management Scenarios On Microbial Communitiesmentioning

confidence: 99%

Could Land Abandonment with Human Intervention Benefit Cropland Restoration? From the Perspective of Soil Microbiota

Zhang

et al. 2021

Land

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Although agricultural land abandonment (LA) is accompanied by land degradation, it could be considered a kind of self-rehabilitation. Studies have shown that long-term LA has profound ecological and environmental benefits, whereas few studies have compared LA with human intervention (HI), which involves planting and fertilization in agroecosystem restoration. Here, we established four different scenarios based on local livestock husbandry, including LA without HI, LA with slight human intervention (HIS), medium human intervention (HIM), and intensive human intervention (HII). LA experiments were conducted for 3 years and repeatedly sampled three times. The soil bacterial and fungal communities were determined to present the ecological impacts. In this study, LA and HIS could save soil inorganic carbon and total calcium (Ca) contents and benefit soil mycorrhizal fungi and plant growth-promoting rhizobacteria. LA and HIM benefited some microbial communities associated with complicated organic compounds. Human interference methods did not significantly increase soil nutrients after 3 years of farmland abandonment. However, indigenous vegetation increased the risk of plant diseases based on soil microbial communities. Forage grass may control the risk, and HIS was a cost-effective scenario in our study. Moreover, we should maintain a cautious attitude toward HII to prevent excessive intervention.

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“…In addition to allergenic pollen and harmless microorganisms, the air may transport human pathogens, especially those causing respiratory diseases (Abd Aziz et al, 2018;Be et al, 2015;Cao et al, 2014;Fan et al, 2019;Kowalski and Bahnfleth, 1998). Although with much lower abundance than soil and leaf surface bacteria, a total of 39 bacterial genera (596 OTUs) with pathogenic representatives were found in our samples and compiled in Table 3.…”

Section: Potential Pathogenic Bacteria and Fungi Are Present In Urbanmentioning

confidence: 99%

Temporal patterns of variability for prokaryotic and eukaryotic diversity in the urban air of Madrid (Spain)

Núñez

Paz

Rastrojo

et al. 2019

Atmospheric Environment

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Although many microorganisms are ubiquitously present in the air, airborne microbial communities have been much less characterized than those in soil or aquatic environments. Besides its ecological importance, detection and monitoring of the wide diversity of these aerosolized microorganisms (bacteria, viruses, fungi and pollen) is relevant for understanding allergy and disease outbreaks, especially in highly populated cities. In this study, we describe the simultaneous biodiversity of bacteria, fungi and plants present in the urban atmosphere of Madrid (Spain) along different seasonal periods, using DNA sequencing. Sampling in two different locations (downtown and peri-urban) we found that changes in the composition of each community are mainly driven by environmental factors, rather than by the features of the specific sampling microenvironments. While pollen particles are dominated by a few taxa characteristic of each season, bacteria and fungi show a high diversity but stable core communities along the year. The prokaryotic core is governed by soil and leaf surface bacteria, with predominance of Actinobacteria (Frankiales and Micrococcales) and Alphaproteobacteria (Sphingomonadales, Rhodobacterales, Rhizobiales and Acetobacterales). Fungal diversity is characterized by the steady presence of members of Capnodiales and Pleosporales. Pathogenic bacterial and fungal taxa were also detected across the year. We also correlated the airborne biodiversity with environmental variables. Air temperature has a strong influence on the community composition of bacteria, while pollen and fungi seasonal variations are mainly correlated with precipitation. Our results contribute to the characterization of airborne prokaryotic and eukaryotic communities in urban areas and show the suitability of this method for biosurveillance strategies.

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Comparative study of the airborne microbial communities and their functional composition in fine particulate matter (PM2.5) under non-extreme and extreme PM2.5 conditions

Cited by 51 publications

References 58 publications

Seasonal Variation Characteristics of Bacteria and Fungi in PM2.5 in Typical Basin Cities of Xi’an and Linfen, China

Seasonal Variation Characteristics of Bacteria and Fungi in PM2.5 in Typical Basin Cities of Xi’an and Linfen, China

Could Land Abandonment with Human Intervention Benefit Cropland Restoration? From the Perspective of Soil Microbiota

Temporal patterns of variability for prokaryotic and eukaryotic diversity in the urban air of Madrid (Spain)

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