Abstract
Community-based microbial source tracking (MST) can be
used to determine fecal contamination from multiple sources
in the aquatic environment. However, there is little scientific
information on its application potential in water environmental
management. Here, we compared SourceTracker and
Fast Expectation-maximization Microbial Source Tracking
(FEAST) performances on environmental water bodies exposed
to low fecal pollution and evaluated treatment effects
of fecal pollution in the watershed utilizing community-based
MST. Our results showed that FEAST overall outperformed
SourceTracker in sensitivity and stability, and was able to discern
multi-source fecal contamination (mainly chicken feces)
in ambient water bodies exposed to low fecal inputs. Consistent
with our previous PCR/qPCR-based MST assays, FEAST
analysis indicates that fecal pollution has been significantly
mitigated through comprehensive environmental treatment
by the local government. This study suggests that FEAST can
be a powerful tool for accurately evaluating the contribution
of multi-source fecal contamination in environmental water,
facilitating environmental management.
Citations
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Journal of Crohn's and Colitis.2025;[Epub] CrossRef - Integrating microbial community dynamics and emerging contaminants (ECs) for precisely quantifying the sources in groundwater affected by livestock farming
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Journal of Translational Medicine.2025;[Epub] CrossRef - Faecal source apportionment using molecular methods: A proof of concept using the FEAST algorithm
Laura T. Kelly, Jack Sissons, Lucy Thompson, John K. Pearman
Water Research.2024; 266: 122365. CrossRef - Computational methods and challenges in analyzing intratumoral microbiome data
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Trends in Microbiology.2023; 31(7): 707. CrossRef - Response and recovery mechanisms of river microorganisms to gradient concentrations of estrogen
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