Influence of bacterial community diversity, functionality, and soil factors on polycyclic aromatic hydrocarbons under various vegetation types in mangrove wetlands

Wu, Yun; Jiang, Bowei; Zou, Yu; Dong, Haiyan; Wang, He; Zou, Hongfei

doi:10.1016/j.envpol.2022.119622

Cited by 14 publications

(7 citation statements)

References 63 publications

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“…Anaerolinea species have been characterized as carbohydrate and PAH degraders. , Other potential keystone taxa that were not within Modules 1–3 included unclassified genera in family BSV40 from the phylum Bacteroidota (ASV1644) and order SBR1031 from the phylum Chloroflexota (ASV1379). Members in order SBR1031 have been documented to play a crucial role in degradation of biodegradable plastics and PAHs . The only keystone ASV belonging to the domain Archaea, other than Bacteria (ASV1149), was an uncultured group from the order Methanomicrobiales of the phylum Halobacterota, which has been documented as a major player in hydrocarbon degradation …”

Section: Resultsmentioning

confidence: 99%

“…Members in order SBR1031 have been documented to play a crucial role in degradation of biodegradable plastics and PAHs. 105 The only keystone ASV belonging to the domain Archaea, other than Bacteria (ASV1149), was an uncultured group from the order Methanomicrobiales of the phylum Halobacterota, which has been documented as a major player in hydrocarbon degradation. 106 The keystone taxa played an important role in maintaining the stability of the network, especially the shared microbial taxa in different modules, and the ASVs identified as potential keystone taxa by both centrality-and connectivity-based methods.…”

Section: Microbial Co-occurrence Network 311 Microbial Community Comp...mentioning

confidence: 99%

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Using Network Analysis and Predictive Functional Analysis to Explore the Fluorotelomer Biotransformation Potential of Soil Microbial Communities

Dong,

Yan,

Mezzari

et al. 2024

Environ. Sci. Technol.

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Microbial transformation of per-and polyfluoroalkyl substances (PFAS), including fluorotelomer-derived PFAS, by native microbial communities in the environment has been widely documented. However, few studies have identified the key microorganisms and their roles during the PFAS biotransformation processes. This study was undertaken to gain more insight into the structure and function of soil microbial communities that are relevant to PFAS biotransformation. We collected 16S rRNA gene sequencing data from 8:2 fluorotelomer alcohol and 6:2 fluorotelomer sulfonate biotransformation studies conducted in soil microcosms under various redox conditions. Through co-occurrence network analysis, several genera, including Variovorax, Rhodococcus, and Cupriavidus, were found to likely play important roles in the biotransformation of fluorotelomers. Additionally, a metagenomic prediction approach (PICRUSt2) identified functional genes, including 6-oxocyclohex-1-ene-carbonyl-CoA hydrolase, cyclohexa-1,5-dienecarbonyl-CoA hydratase, and a fluoride-proton antiporter gene, that may be involved in defluorination. This study pioneers the application of these bioinformatics tools in the analysis of PFAS biotransformation-related sequencing data. Our findings serve as a foundational reference for investigating enzymatic mechanisms of microbial defluorination that may facilitate the development of efficient microbial consortia and/or pure microbial strains for PFAS biotransformation.

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Section: Resultsmentioning

confidence: 99%

Section: Microbial Co-occurrence Network 311 Microbial Community Comp...mentioning

confidence: 99%

Using Network Analysis and Predictive Functional Analysis to Explore the Fluorotelomer Biotransformation Potential of Soil Microbial Communities

Dong,

Yan,

Mezzari

et al. 2024

Environ. Sci. Technol.

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“…Some studies have indicated that high-concentration PAH pollution can significantly alter the diversity of soil microorganisms, community composition, and physiological activity [ 27 , 35 , 36 ]. In this study, PAH significantly decreased the content of SOC but increased the content of TP compared to CK, while other soil physicochemical properties did not change ( Table 1 ).…”

Section: Discussionmentioning

confidence: 99%

“…Long-term PAH pollution enriches soil PAHs in wetlands, promoting the utilization and growth of oligotrophic bacteria [ 32 ]. Moreover, Wu et al [ 27 ] and Yang et al [ 28 ] also observed that PAH pollution can lead to a decrease in soil quality and result in significant changes in soil microbial composition. For instance, the abundances of Bacteroidetes were lowest in mangrove wetlands under PAH pollution.…”

Section: Discussionmentioning

confidence: 99%

“…For instance, Dai et al [ 26 ] found that adding PAHs significantly reduced the diversity of bacterial communities in farmland soil and altered the bacterial community’s structural composition. Wu et al [ 27 ] also reported that PAHs notably decreased the richness and diversity of soil bacterial communities in mangrove wetlands. Nevertheless, Yang et al [ 28 ] reported contrasting results, indicating that higher levels of PAH contamination increased bacterial abundance and diversity in urban contaminated soil.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Polycyclic Aromatic Hydrocarbons on the Composition of the Soil Bacterial Communities in the Tidal Flat Wetlands of the Yellow River Delta of China

Qi,

Wu,

Zhi

et al. 2024

Microorganisms

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Polycyclic aromatic hydrocarbons (PAHs) are pervasive organic pollutants in coastal ecosystems, especially in tidal flat wetlands. However, the mechanisms through which PAHs impact the soil bacterial communities of wetlands featuring a simple vegetation structure in the Yellow River Delta (China) remain largely unclear. In this study, we examined soil samples from two sites featuring a single vegetation type (Suaeda salsa) in the Yellow River Delta. Specifically, we investigated the impacts of PAHs on the diversity and composition of soil bacteria communities through high-throughput 16 S rRNA sequencing. PAHs significantly increased the soil organic carbon content but decreased the total phosphorus content (p = 0.02). PAH contamination notably reduced soil bacterial community α diversity (Shannon index) and β diversity. Furthermore, PAHs significantly altered the relative abundance of bacterial phyla, classes, and genera (p < 0.05). Specifically, PAHs increased the relative abundance of the bacterial phyla Acidobacteriota and Gemmatimonadota (p < 0.05), while decreasing the relative abundance of Bacteroidota, Desulfobacterota, and Firmicutes compared to the control wetland (p < 0.05). Moreover, PAHs and certain soil properties [total nitrogen (TN), soil organic carbon (SOC), total phosphorus (TP), and total salt (TS)] were identified as key parameters affecting the community of soil bacteria, with the abundance of specific bacteria being both negatively and positively affected by PAHs, SOC, and TN. In summary, our findings could facilitate the identification of existing environmental problems and offer insights for improving the protection and management of tidal flat wetland ecosystems in the Yellow River Delta of China.

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Prokaryotic community structure and predicted metabolism associated with hydrocarbon degradation in marine sediments from the Northwest Coast of Baja California, Mexico

Ramos-Mendoza,

Embarcadero-Jiménez,

Barrios-Navarro

et al. 2024

J Soils Sediments

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Influence of bacterial community diversity, functionality, and soil factors on polycyclic aromatic hydrocarbons under various vegetation types in mangrove wetlands

Cited by 14 publications

References 63 publications

Using Network Analysis and Predictive Functional Analysis to Explore the Fluorotelomer Biotransformation Potential of Soil Microbial Communities

Using Network Analysis and Predictive Functional Analysis to Explore the Fluorotelomer Biotransformation Potential of Soil Microbial Communities

Effects of Polycyclic Aromatic Hydrocarbons on the Composition of the Soil Bacterial Communities in the Tidal Flat Wetlands of the Yellow River Delta of China

Prokaryotic community structure and predicted metabolism associated with hydrocarbon degradation in marine sediments from the Northwest Coast of Baja California, Mexico

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