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High frequency (900 MHz) low amplitude (5 V m-1) electromagnetic field: a genuine environmental stimulus that affects transcription, translation, calcium and energy charge in tomato.

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Roux D, Vian A, Girard S, Bonnet P, Paladian F, Davies E, Ledoigt G. · 2008

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Even brief, low-level cell phone frequency radiation triggered immediate stress responses in plants, suggesting RF fields act as biological stressors.

Plain English Summary

Summary written for general audiences

French researchers exposed tomato plants to 900 MHz electromagnetic fields (the same frequency used by cell phones) at low power levels for just 10 minutes. The plants immediately activated stress response genes and began producing proteins typically associated with injury or environmental damage. The study demonstrates that even brief, low-level radiofrequency exposure can trigger biological stress responses in living organisms.

Why This Matters

This study provides compelling evidence that radiofrequency radiation acts as a biological stressor even at exposure levels well below current safety guidelines. The 5 V/m electric field used here is actually lower than what you might encounter near a cell tower or WiFi router, yet it triggered immediate stress responses in plant cells within minutes. What makes this research particularly significant is that plants responded to RF exposure the same way they respond to physical wounds or other environmental threats. The calcium-dependent nature of the response suggests RF fields may interfere with fundamental cellular communication pathways that exist across all living organisms, including humans. While this study examined plants rather than human cells, the basic cellular mechanisms involved are remarkably similar across species, making these findings relevant to understanding how our own bodies might respond to the radiofrequency fields we encounter daily.

Exposure Details

Electric Field
5 V/m
Source/Device
900 MHz
Exposure Duration
10 min

Exposure Context

This study used 5 V/m for electric fields:

Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 900 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 900 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Study Details

Using an especially-designed facility, the Mode Stirred Reverberation Chamber, we exposed tomato plants (Lycopersicon esculentum Mill. VFN8) to low level (900 MHz, 5 V m(-1)) electromagnetic fields for a short period (10 min) and measured changes in abundance of three specific mRNA soon after exposure.

Within minutes of electromagnetic stimulation, stress-related mRNA (calmodulin, calcium-dependent pr...

Cite This Study
Roux D, Vian A, Girard S, Bonnet P, Paladian F, Davies E, Ledoigt G. (2008). High frequency (900 MHz) low amplitude (5 V m-1) electromagnetic field: a genuine environmental stimulus that affects transcription, translation, calcium and energy charge in tomato. Planta. 227(4):883-891, 2008.
Show BibTeX
@article{d_2008_high_frequency_900_mhz_1300,
  author = {Roux D and Vian A and Girard S and Bonnet P and Paladian F and Davies E and Ledoigt G.},
  title = {High frequency (900 MHz) low amplitude (5 V m-1) electromagnetic field: a genuine environmental stimulus that affects transcription, translation, calcium and energy charge in tomato. },
  year = {2008},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/18026987/},
}
PubMed: 18026987

Cited By (90 papers)

View all 90 citing papers on Semantic Scholar

Quick Questions About This Study

Yes, just 10 minutes of 900 MHz electromagnetic field exposure triggered immediate stress responses in tomato plants. The same frequency used by cell phones activated stress genes and caused plants to produce injury-related proteins, demonstrating that brief low-level radiofrequency exposure can cause biological effects in living organisms.
French researchers found that tomato plants immediately activated stress response genes when exposed to 900 MHz electromagnetic fields for only 10 minutes. The plants began producing proteins typically associated with injury or environmental damage, suggesting they perceived the radiofrequency radiation as a harmful stimulus.
Stress-related genes activated within minutes of 900 MHz electromagnetic field exposure in tomato plants. The response occurred in three phases and was similar to wound responses, with plants immediately producing stress proteins like calmodulin and calcium-dependent protein kinase after just 10 minutes of exposure.
Yes, calcium levels significantly influenced plant responses to 900 MHz electromagnetic fields. Normal calcium levels produced maximum stress gene activation, while higher calcium levels reduced responses. Removing calcium completely prevented any stress gene activation, showing calcium is essential for electromagnetic field detection in plants.
Yes, 30 minutes after 900 MHz electromagnetic field exposure, tomato plants showed decreased ATP concentration and reduced energy charge. This energy depletion occurred alongside stress gene activation, indicating that even brief radiofrequency exposure can impact cellular energy production in living organisms.