Waterborne Bacteria
Waterborne Bacteria - Related Videos
08:01
Glass Wool Filters for Concentrating Waterborne Viruses and Agricultural Zoonotic Pathogens
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Cited by 31 •
2012
Glass wool filters have been used to concentrate waterborne viruses by a number of research groups around the world. Here we show a simple approach for constructing glass wool filters and demonstrate the filters are also effective in concentrating waterborne viral, bacterial and protozoan pathogens.
08:58
Isolation and Identification of Waterborne Antibiotic-Resistant Bacteria and Molecular Characterization of their Antibiotic Resistance Genes
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Cited by 5 •
2023
Here, we present a detailed protocol for the isolation and identification of antibiotic-resistant bacteria from water and the molecular characterization of their antibiotic resistance genes (ARGs). The use of culture-based and non-culture-based (metagenomic analysis) techniques provides complete information about the total bacterial diversity and the total pool of different ARGs present in freshwaters from Mumbai, India.
03:16
Isolation of Antibiotic-Resistant Bacteria from a Water Sample for Molecular Analysis
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2025
Source: Ghadigaonkar, D. and Rath, A. Isolation and Identification of Waterborne Antibiotic-Resistant Bacteria and Molecular Characterization of their Antibiotic Resistance Genes. J. Vis. Exp. (2023)This video demonstrates the isolation and preparation of antibiotic-resistant bacteria from a water sample using selective media. The DNA is extracted from antibiotic-resistant bacteria and amplified to identify the bacterial antibiotic-resistant genes.
10:58
Isolation of Fecal Bacteria from Water Samples by Filtration
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2023
Source: Laboratories of Dr. Ian Pepper and Dr. Charles Gerba - The University of Arizona Demonstrating Author: Luisa Ikner The quality of water destined for use in agricultural, recreational, and domestic settings is of great importance due to the potential for outbreaks of waterborne disease. Microbial agents implicated in such events include parasites, bacteria, and viruses that are shed in high numbers in the feces of infected people and animals. Transmission to new and susceptible hosts may...
12:11
A Modified EPA Method 1623 that Uses Tangential Flow Hollow-fiber Ultrafiltration and Heat Dissociation Steps to Detect Waterborne Cryptosporidium and Giardia spp.
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Cited by 11 •
2012
This protocol describes the use of a tangential flow hollow-fiber ultrafiltration sample concentration system and a heat dissociation as alternative steps for the detection of waterborne Cryptosporidium and Giardia species using EPA Method 1623.
FAQs
Nutrient availability, temperature, and oxygen conditions can shift where waterborne bacteria are found and how microbial communities are distributed. These variables change the environmental conditions bacteria encounter, while resistance to environmental stress helps determine persistence. Examining them together allows environmental researchers to interpret differences among freshwater, groundwater, wastewater, and marine samples rather than treating all water systems alike.
Biofilm formation is an important environmental variable because it describes a growth context that researchers associate with bacterial distribution and persistence in water systems. Alongside resistance to environmental stress, it helps explain why bacterial presence may vary between samples even when the water source appears similar. Including biofilm-related observations can therefore strengthen assessments of microbial communities and ecosystem health.
Contaminated water can act as a pathway that moves pathogenic waterborne bacteria between environmental settings and hosts. This makes bacterial monitoring relevant beyond describing community composition: it also helps identify conditions linked to potential disease transmission. Tracking contamination across connected water environments supports disease prevention by showing where microbial hazards may travel and where wastewater treatment is important.
Researchers combine culture-based assays, microscopy, and molecular detection to monitor waterborne bacteria. These approaches provide complementary ways to assess water quality rather than relying on a single measurement: culture-based work, visual microscopy, and molecular detection each represent distinct monitoring strategies. Selecting or combining them helps investigators evaluate microbial conditions and investigate contamination across different water environments.
When pollution sources are unclear, molecular detection and other monitoring approaches can help trace contamination sources in water systems. This application connects bacterial measurements with environmental investigation, including assessment of freshwater, groundwater, wastewater, and marine settings. The resulting information can guide water-quality evaluation and support decisions about wastewater treatment or broader ecosystem management.
Monitoring waterborne bacteria is useful when environmental conditions are changing because nutrient availability, temperature, oxygen conditions, biofilm formation, and stress resistance can influence microbial communities. Assessment can help researchers evaluate those community changes in relation to ecosystem health. The same evidence also contributes to human-well-being goals, including disease prevention and management of contaminated water.