Related Experiment Video
Updated: Feb 10, 2026
11:58
Waste Water Derived Electroactive Microbial Biofilms: Growth, Maintenance, and Basic Characterization
Published on: December 29, 2013
14.1K
Microbial Biofilms Dynamics and Functionality in an Urban Mycobacterium-Dominated Drinking Water Distribution System.
Valentin Gangloff1, Borja Aldeguer-Riquelme1,2, M Adela Yañez3
1Department of Physiology, Genetics, and Microbiology, University of Alicante, Alicante 03080, Spain.
Environmental Science & Technology
|February 9, 2026
Summary
Biofilms in drinking water pipes harbor diverse bacteria, including potential pathogens and antibiotic resistance genes. Novel viruses were found that may help destabilize these biofilms, offering new control strategies.
Area of Science:
- Microbiology
- Environmental Science
- Water Quality
Background:
- Microbial communities in drinking water distribution systems (DWDS) form biofilms on pipe surfaces.
- These biofilms impact water quality, infrastructure integrity, and public health.
- Current methods do not routinely control biofilm formation in DWDS.
Purpose of the Study:
- To investigate bacterial community dynamics and functionality in an urban chlorinated DWDS.
- To understand the role of biofilms in the prevalence of potential pathogens and antibiotic resistance genes.
- To identify key microbial taxa and viral communities involved in biofilm formation and destabilization.
Main Methods:
- 16S rRNA gene metabarcoding
- Metagenomics
- Microscopy
- Metagenome-assembled genome (MAG) reconstruction
Main Results:
- Biofilm communities exhibited greater functional diversity than water communities.
- Biofilm maturity correlated with increased prevalence of potential *Mycobacterium* pathogens and antibiotic resistance genes (ARGs).
- Key taxa responsible for biofilm formation (22%) and a novel viral community, including potential *Mycobacterium* phages, were identified.
Conclusions:
- Findings deepen the understanding of DWDS microbial composition and biofilm formation.
- Identified key players in biofilm matrix remodeling and potential destabilization mechanisms.
- Provides a foundation for developing effective biofilm control strategies in water distribution systems.
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