Search results for "fecal contamination"

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Human-Driven Microbiological Contamination of Benthic and Hyporheic Sediments of an Intermittent Peri-Urban River Assessed from MST and 16S rRNA Gene…

2017

International audience; Rivers are often challenged by fecal contaminations. The barrier effect of sediments against fecal bacteria was investigated through the use of a microbial source tracking (MST) toolbox, and by Next Generation Sequencing (NGS) of V5-V6 16S rRNA gene (rrs) sequences. Non-metric multi-dimensional scaling analysis of V5-V6 16S rRNA gene sequences differentiated bacteriomes according to their compartment of origin i.e., surface water against benthic and hyporheic sediments. Classification of these reads showed the most prevalent operating taxonomic units (OTU) to be allocated to Flavobacterium and Aquabacterium. Relative numbers of Gaiella, Haliangium, and Thermoleophilu…

0301 basic medicinePollutionMicrobiology (medical)benthic and hyporheic sedimentsmedia_common.quotation_subject[SDV]Life Sciences [q-bio]030106 microbiologyFECA CONTAMINATIONBiologyMicrobiologyarn ribosomal 16s03 medical and health sciencesperi-urban riverzone hyporhéique14. Life underwatermedia_commonOriginal ResearchEcologyBENTHIC AND HYPORHEIC SEDIMENTSMICROBIAL COMMUNITYHIGH THROUGH PUT SEQUENCING (HTS)zone benthiquebiology.organism_classification6. Clean waterFecal coliformAquabacteriumhigh throughput sequencing (HTS)Microbial population biology13. Climate actionBenthic zonefecal contaminationperi-urban river;benthic and hyporheic sediments;microbial community;high throughput sequencing (HTS);fecal contaminationcontamination biologiquePERI-URBAN RIVERCombined sewermicrobial communitySurface waterFlavobacterium
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Monitoring Human Viral Pathogens Reveals Potential Hazard for Treated Wastewater Discharge or Reuse

2022

Wastewater discharge to the environment or its reuse after sanitization poses a concern for public health given the risk of transmission of human viral diseases. However, estimating the viral infectivity along the wastewater cycle presents technical challenges and still remains underexplored. Recently, human-associated crAssphage has been investigated to serve as viral pathogen indicator to monitor fecal impacted water bodies, even though its assessment as biomarker for infectious enteric viruses has not been explored yet. To this end, the occurrence of potentially infectious norovirus genogroup I (GI), norovirus GII, hepatitis A virus (HAV), rotavirus A (RV), and human astrovirus (HAstV) a…

Microbiology (medical)Aigües residuals MicrobiologiacrAssphagevirusesEnteric virusesRT-qPCRFecal contamination indicatorMicrobiologiaCapsid integrityWastewaterMicrobiologyEcologia
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