Silver nanoparticles alter the bacterial assembly and antibiotic resistome in biofilm during colonization

Bao, Shaopan; Xue, Lixin; Xiang, Dongfang; Xian, Bo; Tang, Wei; Fang, Tao

doi:10.1039/d2en01018f

Cited by 3 publications

(2 citation statements)

References 72 publications

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“…AgNPs exposure can modify the microbial community composition of microorganisms in terrestrial, aquatic, marine and wastewater environments [88][89][90]. PAHs with different rings could also alter the community structure of soil microorganisms [91].…”

Section: Community Structure Of Denitrifying Bacteria After Single An...mentioning

confidence: 99%

“…In both Phe and AgNPs contamination can increase the abundance ratio of Pseudomonas among nosSand nosZ-type denitrifying bacteria in coastal marine sediment, and the promotion effect of combined contamination with Phe and AgNPs on Pseudomonas, rather than the other bacteria, was stronger than their single contamination. AgNPs exposure can modify the microbial community composition of microorganisms in terrestrial, aquatic, marine and wastewater environments [88][89][90]. PAHs with dif-…”

Section: Community Structure Of Denitrifying Bacteria After Single An...mentioning

confidence: 99%

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Single and Combined Effects of Phenanthrene and Silver Nanoparticles on Denitrification Processes in Coastal Marine Sediments

Sun,

Bai,

Lian

et al. 2024

Microorganisms

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The increasing production and utilization of polycyclic aromatic hydrocarbons (PAHs) and commercial silver nanoparticles (AgNPs) have raised concerns about their potential environmental release, with coastal sediments as a substantial sink. To better understanding the effects of these contaminants on denitrification processes in coastal marine sediments, a short-term exposure simulation experiment was conducted. We investigated the effects of single and combined contamination of phenanthrene (Phe) and AgNPs on denitrification processes in a coastal marine sediment. Results showed that all contaminated treatment groups had different degrees of inhibitory effect on denitrification activity, denitrifying enzyme activity, total bacteria count and denitrifying genes. The inhibitory effect sequence of each treatment group was combined treatment > AgNPs treatment > Phe treatment. Moreover, the inhibitory effects of denitrifying genes were much larger than that of total bacteria count, indicating that the pollutants had specific toxic effects on denitrifying bacteria. The sequence of sensitivity of three reduction process to pollutants was N2O > NO2− > NO3−. All contaminated treatment groups could increase NO3−, NO2− and N2O accumulation. Furthermore, according to the linear relationship between functional gene or reductase and denitrification process, we also found that the abundance of denitrifying genes could better predict the influence of Phe and AgNPs on sediment denitrification than the denitrifying bacterial diversity. In addition, at the genus level, the community structure of nirS- and nosZ-type denitrifying bacteria changed dramatically, while changes at the phylum level were comparatively less pronounced. Single and combined contamination of Phe and AgNPs could reduce the dominance of Pseudomonas, which may lead to a potential slow-down in the degradation of Phe and inhibition of denitrification, especially the combined contamination. Overall, our study revealed that combined contamination of Phe and AgNPs could lead to an increase in NO3−, NO2− and N2O accumulation in coastal sediment, which poses a risk of eutrophication in coastal areas, exacerbates the greenhouse effect and has adverse effects on global climate change.

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Section: Community Structure Of Denitrifying Bacteria After Single An...mentioning

confidence: 99%

Section: Community Structure Of Denitrifying Bacteria After Single An...mentioning

confidence: 99%

Single and Combined Effects of Phenanthrene and Silver Nanoparticles on Denitrification Processes in Coastal Marine Sediments

Sun,

Bai,

Lian

et al. 2024

Microorganisms

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Impact of antibiotic therapy on cutaneous and gut microbiota in Rana dybowskii amphibians: Insights and implications

Long,

Dong,

et al. 2024

Aquaculture

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Soil Microorganisms: Their Role in Enhancing Crop Nutrition and Health

Chen,

Song,

et al. 2024

Diversity

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Maintaining soil health is fundamental to sustaining agricultural productivity, however, the intricate role of soil microbial diversity in this process is not fully understood. Current research acknowledges that soil microorganisms including bacteria, fungi, and archaea are pivotal in driving essential soil functions such as nutrient cycling, organic matter decomposition, and disease suppression. However, the impacts of global environmental changes and intensive agricultural practices on the diversity of these microorganisms remain a critical gap in the literature. This gap is significant because a decline in microbial diversity could severely compromise soil health, and consequently crop productivity. Here, we provide a comprehensive review of the factors influencing soil microbial diversity and examine their implications for crop performance. We assess both natural factors such as soil pH, moisture, temperature, and vegetation type as well as human-induced factors including tillage systems and fertilizer application. The review synthesizes recent findings on how these factors shape microbial communities and their functional roles in nutrient cycling, soil structure formation, and disease suppression. Our analysis highlights the mechanisms by which microbial diversity enhances plant growth and yield, addressing the gap in understanding the direct links between microbial diversity and agricultural outcomes. Our findings underscore the urgent need for sustainable agricultural practices that protect and enhance microbial diversity to safeguard long-term soil fertility and crop productivity. By addressing the challenges in manipulating soil microbial communities and integrating microbial ecology with crop management practices, this research advances our ability to sustain agricultural systems in the face of global environmental changes.

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Silver nanoparticles alter the bacterial assembly and antibiotic resistome in biofilm during colonization

Abstract: Silver nanoparticles show non-negligible impacts on the microbiome and antibiotic resistome in biofilm during colonization.

Cited by 3 publications

References 72 publications

Single and Combined Effects of Phenanthrene and Silver Nanoparticles on Denitrification Processes in Coastal Marine Sediments

Single and Combined Effects of Phenanthrene and Silver Nanoparticles on Denitrification Processes in Coastal Marine Sediments

Impact of antibiotic therapy on cutaneous and gut microbiota in Rana dybowskii amphibians: Insights and implications

Soil Microorganisms: Their Role in Enhancing Crop Nutrition and Health

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