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Enhancement of the Initial Growth Rate of Agricultural Plants by Using Static Magnetic Fields
Published on: July 8, 2016
Plant Responses to High Frequency Electromagnetic Fields.
Alain Vian1, Eric Davies2, Michel Gendraud3
1Université d'Angers, Campus du Végétal, UMR 1345 IRHS, CS 60057, SFR 4207 QUASAV, 49071 Beaucouzé Cedex, France.
High frequency nonionizing electromagnetic fields (HF-EMF) impact plant metabolism and growth. These environmental stimuli trigger systemic responses in plants, affecting cellular and molecular activities without causing injury.
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Area of Science:
- Plant biology and environmental science.
- Electromagnetic field interactions with biological systems.
Background:
- Increasing environmental presence of high frequency nonionizing electromagnetic fields (HF-EMF).
- Plants' high surface area to volume ratio optimizes environmental interaction.
- HF-EMF exposure elicits plant responses similar to stress treatments.
Purpose of the Study:
- To review exposure devices and physics of EMF-plant interactions.
- To illustrate cellular, molecular, and whole plant responses to HF-EMF.
- To propose HF-EMF as a genuine environmental factor influencing plant metabolism.
Main Methods:
- Identification of main exposure devices (e.g., gigahertz electromagnetic cells, reverberating chambers).
- Review of physics governing EMF interactions with plants.
- Compilation and illustration of observed plant responses at multiple scales.
Main Results:
- Numerous metabolic activities (e.g., ROS metabolism, enzyme activity, chlorophyll content) are modified.
- Gene expression is altered (e.g., calmodulin, proteinase inhibitor).
- Plant growth is reduced (e.g., stem elongation, dry weight) following nonthermal HF-EMF exposure.
- Responses are observed systemically in distant tissues, not just directly exposed areas.
Conclusions:
- Nonionizing HF-EMF is a genuine environmental factor affecting plant metabolism.
- Observed metabolic changes occur systemically and can be nonthermal.
- Long-term impacts of these metabolic changes require further investigation.

