Related Experiment Video
Updated: Jun 27, 2026
08:01
Environmental Sampling of Photosynthetic Microbes and Their Viruses: From Field to Lab
Published on: July 3, 2025
Methods for the isolation of viruses from environmental samples
K Eric Wommack1, Kurt E Williamson, Rebekah R Helton
1Delaware Biotechnology Institute, University of Delaware, Newark, DE, USA.
Methods in Molecular Biology (Clifton, N.J.)
|December 11, 2008
Summary
Viruses are incredibly abundant in diverse environments, vastly outnumbering their hosts. This study details methods for isolating and concentrating viruses, crucial for understanding microbial ecosystems and viral genetic diversity.
Area of Science:
- Environmental microbiology
- Virology
- Molecular ecology
Background:
- Viruses are exceptionally abundant in aquatic, soil, and sediment ecosystems, often exceeding host populations by 10-100 fold.
- Viruses represent a significant reservoir of Earth's genetic diversity, with immense unexplored genetic information.
- Microscopy and molecular techniques reveal viruses as dynamic ecosystem components influencing host populations and productivity.
Purpose of the Study:
- To provide detailed methodologies for virus isolation and concentration from environmental samples.
- To facilitate the application of cultivation-independent and -dependent methods in virus ecology.
- To support research on viral genetic diversity and ecological roles.
Main Methods:
- Detailed protocols for concentrating viruses from water samples.
- Methodological approaches for isolating viruses from soil samples.
- Techniques for virus concentration from aquatic sediment samples.
Main Results:
- Established comprehensive methods for virus isolation and concentration.
- Enabled robust analysis of viral communities in diverse environmental matrices.
- Facilitated further research into viral ecological significance and genetic potential.
Conclusions:
- Effective virus concentration is a critical prerequisite for ecological and genetic studies.
- Standardized methodologies enhance the reliability and comparability of virus research.
- Understanding viral communities is essential for comprehending microbial ecosystem dynamics.
Related Concept Videos
01:24Techniques for Isolation of Pure Cultures
Microorganisms are routinely cultured in the laboratory using various techniques to isolate, grow, and quantify them for further study. These methods rely on inoculating microorganisms into a suitable growth medium under aseptic conditions to prevent contamination. Depending on the objective, inoculation can involve direct transfer or the use of diluted bacterial suspensions as the inoculum.Streak-Plate Method for IsolationThe streak-plate method is a common technique for obtaining pure...
01:20Overview Of Cell Separation And Isolation
Cell separation was first achieved in 1964 by S. H. Seal, who separated large tumor cells from the smaller blood cells using filtration. Two years later, Pohl and Hawk performed experiments on how cells respond differently to a nonuniform electric field based on the cell type. Such observations were the inception of cell separation methods, which allow isolating a single cell type from a heterogeneous sample.