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Medical/biological Study (experimental study)Evidence for dependence of resonant frequency of milimeter wave interaction with Escherischia coli K12 cells on haploid genome length. med./biol. By: Belyaev IY, Alipov YD, Polunin VA, Shcheglov VS
Published in: Electro Magnetobiol 1993; 12 (1): 39 - 49 (  Journal web site )Aim of study (according to author)
The method of anomalous viscosity time dependence (AVTD) was used to study the influence of millimeter electromagnetic radiation on the genome conformational state (GCS) of E. coli cells with different lengths of the bacterial chromosme.
Background/further details:
The length of the chromosme was changed by inserting DNA of phages. If DNA is the target of resonance interaction between millimeter waves and cells, the increase in length (mass) of chromosome DNA should decrease the resonance frequency. Endpoint Exposure
General category: millimeter waves | Field characteristics | Parameters |
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field 1: 41.28  - 41.37 GHz
exposure duration: 10 min
| power flux density: 0.1 nW/cm²
| field 2: 51.73 - 51.79 GHz
exposure duration: 10 min
| power flux density: 0.1 nW/cm²
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FIELD View further expo parametersExposed system:
bacterium (in vitro)
virus/bacteriophages (in vitro)
Escherichia coli/K12N99 and two lysogenic phage strains (N99(λ) and N99(λ,λimmbio10) Methods
Endpoint/Measurement parameters/Methodology investigated material: cell lysates
time of investigation: after exposure
Main outcome of study (according to author)
In the 41.28-41.37 GHz and 51.73-51.79 GHz ranges the resonance effect of low-intensity electromagnetic radiation (EMR) on the genome conformational state of cells (N99) was shown. The insertion in bacterial chromosome of the two prophages reduced both resonance frequencies considerably. The decrease of both resonance frequencies was propotionate to the increase of the haploid genome length. Shifts of the resonance frequency were not accompanied by change in the sign of effective EMR polarization. The results indicate that the frequencies of resonance interaction with low-intensity millimeter waves are determined by the genome structure. (Study character: medical/biological study, experimental study, full/main study)
Study funded by Related articles 
- Belloni F et al. (2005): A suitable plane transmission line at 900 MHz rf fields for E. coli DNA...
- Belyaev IY et al. (1992): Chromosome DNA as a target of resonant interaction between Escherichia Coli...
- Belyaev IY et al. (1992): Resonance effect of microwaves on the genome conformational state of E. coli...
Glossary: AVTD, bacterial, biological, cells, chromosome, conformational, DNA, EMR, endpoint, Escherichia coli, exposure, frequency, full/main study, genome, genotoxicity, GHz, haploid, insertion, in vitro, lysates, Millimeter waves, mutation, Phage, polarization, power flux density, resonance, resonance frequencies, strains, virus, viscosity |
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