Experimental evidence for viral impact on microbial community, nitrification, and denitrification in an agriculture soil

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 489, P. 137532 - 137532

Published: Feb. 8, 2025

Language: Английский

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Human Exposure to Ambient Atmospheric Microplastics in a Megacity: Spatiotemporal Variation and Associated Microorganism-Related Health Risk

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(8), P. 3702 - 3713

Published: Feb. 15, 2024

Microplastics are found in various human tissues and considered harmful, raising concerns about exposure to microplastics the environment. Existing research has analyzed indoor occupational scenarios, but long-term monitoring of ambient atmospheric (AMPs), especially highly polluted urban regions, needs be further investigated. This study estimated environmental AMPs by considering inhalation, dust ingestion, dermal three functional zones within a megacity. The annual quantity was 7.37 × 104 items for children 1.06 105 adults, comparable with microplastic consumption from food water. Significant spatiotemporal differences were observed characteristics that humans exposed to, wind speed rainfall frequency mainly driving these changes. AMP green land spaces, which recognized as relatively low zones, public service residential zones. Notably, significant positive correlations between pathogenicity airborne bacterial community discovered. size immune-mediated disease risks brought microbes showed most relationship, where Sphingomonas might act potential key mediator.

Language: Английский

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Distinct responses of airborne abundant and rare microbial communities to atmospheric changes associated with Chinese New Year

iMeta, Journal Year: 2023, Volume and Issue: 2(4)

Published: Oct. 11, 2023

Airborne microorganisms, including pathogens, would change with surrounding environments and become issues of global concern due to their threats human health. Microbial communities typically contain a few abundant but many rare species. However, how the airborne microbial respond environmental changes is still unclear, especially at hour scale. Here, we used sequencing approach based on bacterial 16S rRNA genes fungal ITS2 regions investigate high time-resolved dynamics bacteria fungi explore responses microbes atmospheric changes. Our results showed that air pollutants were significantly affected by activities related Chinese New Year (CNY). Before CNY, significant hour-scale in both subcommunities observed, while only subcommunity changed time series during CNY. Air meteorological parameters explained 61.5%-74.2% variations community 13.3%-21.6% communities. These suggested species more sensitive than taxa. Stochastic processes predominated assembly communities, deterministic determined Potential pathogens CNY highest, suggesting an increased health risk Overall, our findings highlighted "holiday effect" expanded current understanding ecological mechanisms risks changing atmosphere.

Language: Английский

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Manure application primarily drives changes in antibiotic resistome composition rather than abundance in agricultural soil profile

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 382, P. 125421 - 125421

Published: April 19, 2025

Language: Английский

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Stochastic and deterministic mechanisms jointly drive the assembly of microbial communities in cold-rolling wastewater across China

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 491, P. 137925 - 137925

Published: March 11, 2025

Language: Английский

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Combined effects of acidification and warming on soil denitrification and microbial community

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16

Published: April 2, 2025

In light of the challenges posed by contemporary global warming and soil acidification, respective effects pH temperature on microbiome functions have been explored. However, combined influence acidification denitrification active microbial communities are still unclear. Here, we conducted a microcosm experiment to investigate influences increasing microbes such as bacteria eukaryotic microbes. Denitrification rate in were detected using C2H2 inhibition method. The results showed that Shannon index bacterial exhibited significant enhancement response whereas their community patterns predominantly shaped pH. For micro-eukaryotic community, emerged main driver variations α-diversity, with MT group exhibiting significantly lower indices compared LT HT groups. Both exerted effect patterns. Additionally, was crucial factor influencing rates, negative correlation between within range 4.32-7.46 across all temperatures this study. Our findings highlighted impacts rates under warming, which provided an important scientific basis for agricultural production management environmental protection context climate warming.

Language: Английский

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Winter wheat cultivar improvement impacts rare bacterial communities in the rhizosphere more than abundant bacterial communities

Applied Soil Ecology, Journal Year: 2025, Volume and Issue: 210, P. 106071 - 106071

Published: April 7, 2025

Language: Английский

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Spatial Distribution and Community Composition of Endophytic Fungi within Mussaenda pubescens Stems

Fungal Biology, Journal Year: 2024, Volume and Issue: 128(4), P. 1815 - 1826

Published: May 14, 2024

Language: Английский

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Seasonal distribution of human-to-human pathogens in airborne PM2.5 and their potential high-risk ARGs

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: July 4, 2024

Airborne microorganisms, an emerging global health threat, have attracted extensive studies. However, few attentions been paid to the seasonal distribution of airborne pathogens, in particular their associations with antibiotic resistance genes (ARGs). To this end, two-week daily PM 2.5 samples were consecutively collected from Nanchang four seasons, and human-to-human pathogens screened based on high-throughput sequencing. The results showed that there 20 pathogenic taxa Nanchang, highest relative abundance was observed winter (5.84%), followed by summer (3.51%), autumn (2.66%), spring (1.80%). Although more than half shared analysis similarities community shaped season ( r = 0.16, p < 0.01). Co-occurrence network disclosed significant interactions among each season. Moreover, some dominant such as Plesiomonas shigelloides , Bacteroides fragilis Escherichia-Shigella hub pathogens. In addition, PICRUSt2 predicted 35 high-risk ARG subtypes had strongly positive correlations these ARGs. Even like Aeromonas Citrobacter may be multi-drug resistant including beta-lactam, aminoglycosides, chloramphenicol resistances, etc. Both air pollutants meteorological conditions contributed variation bacteria 0.15, 0.01), especially CO, O 3 temperature humidity. This study furthers our understanding highlights

Language: Английский

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The impact of bioaerosol trajectories on microbial community assembly and physicochemical dynamics in the atmosphere

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 930, P. 172736 - 172736

Published: April 23, 2024

Language: Английский

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