Temperature, sediment resuspension, and salinity drive the prevalence of Vibrio vulnificus in the coastal Baltic Sea

mBio, Год журнала: 2024, Номер unknown

Опубликована: Сен. 19, 2024

The number of

Язык: Английский

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Mapping of metals contamination in coastal sediments around the world in the last decades: A bibliometric analysis and systematic review

Marine Pollution Bulletin, Год журнала: 2024, Номер 205, С. 116572 - 116572

Опубликована: Июнь 14, 2024

Язык: Английский

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Unveiling organohalide respiration potential in River Nile sediments via 16S rRNA gene amplicon sequencing of endogenous bacterial communities

BMC Microbiology, Год журнала: 2025, Номер 25(1)

Опубликована: Март 31, 2025

Abstract Background Industrial waste, agricultural runoff and untreated sewage contaminate the Nile, leaving a toxic legacy in its sediments. Organohalides-polluted sediment particular poses serious public health risks detrimental effects on aquatic life. Sediment microbiomes may harbor bacterial strains that could be utilized bioremediation of such pollutants. Material methods Two from polluted River Nile sediments were analyzed by using 16S rRNA gene amplicon sequencing. In addition, PICRUSt analysis based data was used to explore organohalide respiring bacteria (OHRB) genera their corresponding respiration (OHR) activity. Microcosm studies performed validate potential for dechlorination activity sediment. Dechlorination parent chloroethenes into daughter end product detected gas chromatography coupled with flame ionization detection analysis. Results Analysis sequences EZ-biocloud server identified Proteobacteria as dominant phylum both microbiomes, Bacteroidetes Chloroflexi prevalent RNS1 Chlorobi RNS2 PCR analyses several OHRB genera, including Dehalococcoides , Dehalogenimonas Desulfomonile Desulfovibrio Geobacter suggesting OHR Further evidence provided functional prediction analysis, which suggested presence reductive dehalogenases biomarkers associated samples. Specifically, predicted genes tetrachloroethene dehalogenase 3-chloro-4-hydroxyphenylacetate dehalogenase, previously linked OHR. confirmed dichloroethene. Conclusion This study demonstrates industrialized area harbors distinct enclosing various providing substantial It also provides

Язык: Английский

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Multivariate analyses to evaluate the contamination, ecological risk, and source apportionment of heavy metals in the surface sediments of Xiang-Shan wetland, Taiwan

Frontiers in Public Health, Год журнала: 2025, Номер 13

Опубликована: Апрель 9, 2025

Nowadays, heavy metal (HM) contamination and their ecological risk in coastal sediments are global issues. This research provides insight into the metals' contamination, source apportionment, potential risks surface of Xiang-Shan wetland Taiwan, which is undergoing rapid economic development, mainly by semiconductor industries. The levels twelve metals total organic matter (TOM) were measured 44 samples sediment during spring winter seasons 2022. Subsequently, single comprehensive pollution indices assessed. findings showed that average HM contents exhibited a descending sequence Al > Fe Mn Zn Co Ga Cr Cu In Ni Pb = Cd both seasons. E f , I geo PI majority uncontaminated to heavily contaminated Fe, Al, Zn, Cu, Mn, Cr, Ni, Ga, extremely In. Moreover, PLI mC deg unveiled DJ, OB, KY stations strongly or polluted. PERI revealed shows minimal moderate risk. multivariate analyses suggested derived from natural sources, while In, Co, originated anthropogenic origins. Hence, it critical particularly be continuously monitored study area. Our data provide significant insights for more effective prevention evaluation aquatic-sedimentary ecosystems Taiwan.

Язык: Английский

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Assessing the Relationship Between Sedimentary Microbial Community Structure and Pollutants in Stormwater Wetlands Using eDNA Metabarcoding

Environmental DNA, Год журнала: 2025, Номер 7(2)

Опубликована: Март 1, 2025

ABSTRACT Environmental pollution is regarded as one of the most substantial threats facing freshwater ecosystems. Two contaminant types in particular, metals and pesticides, represent both long‐term widespread hazards to aquatic environments. Contamination negatively affects health flora fauna. Constructed wetlands are an important mitigation measure for managing stormwater urban landscapes. Given that constructed designed capture retain contaminants from sediments, resulting chemical profiles largely representative contamination surrounding local catchment DNA expanding field monitoring, introducing ability assess biological quickly reliably, knowledge how ecosystems down a microbial level. Here, we used environmental (eDNA) metabarcoding characterize sedimentary nine rural wetland with low levels variation community structures between sites well inlet outlet within each site. We found significant communities (reference) wetlands, some over half inlets outlets. The bacterial phyla Cyanobacteria Proteobacteria were mostly driving this variation, along Planctomycetota Bacteroidota. also correlations structure occurrences, particularly zinc barium, latter not previously reported be associated dynamics Our study validates eDNA reliably evaluate highlights its value assessment prediction these

Язык: Английский

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Assessing the bioaccumulation of copper and zinc using bird as bioindicator in different wetland ecosystems of Odisha, India

ENVIRONMENTAL SYSTEMS RESEARCH, Год журнала: 2025, Номер 14(1)

Опубликована: Май 3, 2025

Язык: Английский

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Effects of microplastics on microbial community dynamics in sediments from the Volturno River ecosystem, Italy

Chemosphere, Год журнала: 2023, Номер 349, С. 140872 - 140872

Опубликована: Дек. 4, 2023

Язык: Английский

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Diversity, composition and potential roles of sedimentary microbial communities in different coastal substrates around subtropical Okinawa Island, Japan

Environmental Microbiome, Год журнала: 2024, Номер 19(1)

Опубликована: Июль 30, 2024

Abstract Background Marine benthic prokaryotic communities play crucial roles in material recycling within coastal environments, including coral reefs. Coastal sedimentary microbiomes are particularly important as potential reservoirs of symbiotic, beneficial, and pathogenic bacteria reef therefore presumably a core role local ecosystem functioning. However, there is lack studies comparing different environments with multiple sites on the island scale, focusing communities, previous investigations have focused mainly single site or specific environmental conditions. In our study, we collected sediments from seven around Okinawa Island, Japan, three types; sandy bottoms, seagrass meadows, hard substratum living scleractinian corals. We then used metabarcoding to identify compositions estimate enzymes encoded by genes infer their functions. Results The results showed that substrata had significantly compositions. Seagrass meadow exhibited higher alpha-diversity compared bottom sites. ANCOM analysis revealed bacterial orders were differentially abundant each substratum. At sites, putative disease- thermal stress-related opportunistic such Rhodobacterales , Verrucomicrobiales Cytophagales comparatively abundant, while abundantly harbored Desulfobacterales Steroidobacterales Chromatiales which common meadows. According gene-coded enzyme analyses numbers highest Notably, superoxide dismutase, an for anti-oxidative stress tissue, was at Our provide list prokaryotes look into substrate, further emphasize importance considering microbiome, especially when conservation. Conclusion findings prove capable capturing compositional differences diversity microbial environments. Furthermore, several taxa suggested be more enzymic also possible ecological Further combination field observations temporal sampling, key achieving better understanding interactions between microbiome surrounding community.

Язык: Английский

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Bourgeoning Impacts of the Coastal Megacities and Potential Ecological Risks of Leachable Heavy Metals in Fine-sediments Fractions along the Egyptian Red Sea Shores

Water Air & Soil Pollution, Год журнала: 2024, Номер 235(8)

Опубликована: Июль 19, 2024

Язык: Английский

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Assessment of heavy metal pollution in seawater, benthic flora and fauna and their ability to survive under stressors along the northern Red Sea, Egypt

Oceanological and Hydrobiological Studies, Год журнала: 2022, Номер 51(4), С. 355 - 370

Опубликована: Дек. 22, 2022

The purpose of this study was to assess the north coasts Egyptian Red Sea, including Ras Gharieb, Hurghada, Safaga and Qusier, by evaluating heavy metal pollution in seawater benthic flora fauna winter summer 2016. concentrations metals (Fe, Mn, Zn, Cu, Ni, Cd Pb) were analysed with an atomic absorption spectrophotometer. results revealed that Fe levels ranged from 7.86 27.95 µg l-1, while Zn fell between 1.83 5.63 l-1. In contrast, recorded values Pb minimal at sites. Regarding biota samples, Porifera species more adaptable than others accumulation most their tissues. Furthermore, seaweeds seagrasses demonstrated remarkable adaptation highly polluted regions, especially those high turbidity, landfilling, sedimentation eutrophication rates – much fauna. Our research highlights critical need for strict regulation emissions these coastal regions.

Язык: Английский

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