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Low-frequency electromagnetic fields alter the replication cycle of MS2 bacteriophage
J Staczek1, A A Marino, L B Gilleland
1Department of Microbiology & Immunology, Louisiana State University Medical Center, 1501 Kings Hwy., Shreveport, LA 71130-3932, USA.
Current Microbiology
|May 16, 1998
Summary
Exposure to 60-Hz electromagnetic fields (EMFs) delayed RNA coliphage MS2 replication. While the final phage concentration remained unchanged, the simplest biological system yet studied showed EMF-induced effects.
Area of Science:
- Biophysics
- Molecular Biology
- Microbiology
Background:
- Electromagnetic fields (EMFs) are ubiquitous.
- Understanding EMFs' biological effects is crucial.
- RNA coliphage MS2 is a simple model system for studying viral replication.
Purpose of the Study:
- To investigate the impact of 60-Hz EMFs on RNA coliphage MS2 replication.
- To determine if EMF exposure affects phage yield and concentration.
- To establish MS2 as a model for studying EMF-biological interactions.
Main Methods:
- Bacterial cultures were inoculated with MS2 phage.
- Cultures were exposed to 60-Hz EMFs at 5 G and 25 G.
- Phage yield and concentration were measured over time, with sham exposures for control.
Main Results:
- A 5 G field caused a significant delay in phage yield (45-65 min post-inoculation).
- A 25 G field impeded replication and increased final phage yield.
- Sham exposures showed no differences, validating EMF-specific effects.
Conclusions:
- 60-Hz EMFs demonstrably affect MS2 phage replication.
- MS2 represents the simplest biological system showing EMF-induced effects.
- The MS2 system is suitable for further research into EMF-biological interaction mechanisms.