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DNA & Genetic Damage

Cytogenetic changes induced by low-intensity microwaves in the species Triticum aestivum

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Pavel A, Ungureanu CE, Bara II, Gassner P, Creanga DE · 1998

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Low-intensity microwaves at 9.75 GHz caused multiple types of DNA damage in wheat seeds, demonstrating genetic effects below heating thresholds.

Plain English Summary

Summary written for general audiences

Romanian researchers exposed wheat seeds to low-intensity 9.75 GHz microwaves and examined the genetic material under microscopes. They found multiple types of DNA damage including chromosome fragments, delayed chromosomes, and other cellular abnormalities that didn't appear in unexposed control seeds. This demonstrates that even low-intensity microwave radiation can cause measurable genetic damage in living organisms.

Why This Matters

This study adds to a growing body of evidence showing that microwave radiation can damage DNA and chromosomes, even at low intensities. While conducted on wheat seeds rather than human cells, the findings are significant because DNA damage mechanisms are remarkably similar across species. The 9.75 GHz frequency used falls within the X-band microwave range commonly used in radar systems and some industrial applications. What makes this research particularly noteworthy is that it demonstrates clear chromosomal aberrations at low power levels, challenging industry claims that only high-intensity exposures pose biological risks. The reality is that genetic damage doesn't require heating effects to occur, and this study provides direct visual evidence of microwave-induced chromosomal abnormalities.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 9.75 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 9.75 GHzPower lines50/60 HzCell phones~1 GHzWiFi2.4 GHzLogarithmic scale

Specific exposure levels were not quantified in this study. The study examined exposure from: 9.75 GHz

Study Details

To study the cytogenetic changes induced by low-intensity microwaves in the species Triticum aestivum

Seeds of Triticum aestivum having an uniform genophond have been exposed to a microwave flow, with a...

Our results show that as compared to the controls different types of chromosomal aberrations appeare...

Cite This Study
Pavel A, Ungureanu CE, Bara II, Gassner P, Creanga DE (1998). Cytogenetic changes induced by low-intensity microwaves in the species Triticum aestivum Rev Med Chir Soc Med Nat Iasi 102(3-4):89-92, 1998.
Show BibTeX
@article{a_1998_cytogenetic_changes_induced_by_2517,
  author = {Pavel A and Ungureanu CE and Bara II and Gassner P and Creanga DE},
  title = {Cytogenetic changes induced by low-intensity microwaves in the species Triticum aestivum},
  year = {1998},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/10756851/},
}
PubMed: 10756851

Cited By (14 papers)

Quick Questions About This Study

Yes, a 1998 Romanian study found that 9.75 GHz microwave radiation caused multiple types of DNA damage in wheat seeds, including chromosome fragments, delayed chromosomes, and micronuclei. These genetic abnormalities did not appear in unexposed control seeds, demonstrating measurable genetic damage from low-intensity microwave exposure.
Research on wheat seeds exposed to 9.75 GHz microwaves found chromosomal fragments among other DNA abnormalities. The study documented delayed chromosomes, micronuclei, and interchromosomal bridges that were absent in control seeds, indicating that microwave radiation can break apart chromosomes in plant cells.
Romanian researchers found that low-intensity 9.75 GHz microwave exposure caused delayed chromosomes, micronuclei, interchromosomal bridges, and chromosomal fragments in wheat seeds. These various types of chromosomal aberrations were observed under microscopic examination and did not occur in unexposed control samples.
Yes, wheat seeds exposed to 9.75 GHz microwave radiation developed micronuclei, which are small fragments of genetic material outside the main cell nucleus. This 1998 study found micronuclei formation alongside other chromosomal abnormalities like delayed chromosomes and chromosome fragments in the exposed wheat samples.
Research found that 9.75 GHz microwave radiation caused interchromosomal bridges in wheat seeds, which are abnormal connections between chromosomes during cell division. These bridges occurred along with other genetic damage including chromosome fragments and delayed chromosomes, indicating disrupted cellular processes from microwave exposure.