Response of photosynthesis and electrical reactions of wheat plants upon the action of magnetic fields in the Schumann resonance frequency band

Plant signaling & behavior · 2024 · Benefit · Low evidence

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BenefitLow evidencePaper 336

Study snapshot

PublicationPlant signaling & behavior · 2024

Study typeanimal

Reported directionBenefit

Evidence ratingLow

Abstract

Response of photosynthesis and electrical reactions of wheat plants upon the action of magnetic fields in the Schumann resonance frequency band Grinberg M, Ilin N, Nemtsova Y, Sarafanov F, Ivanova A, Dolinin A, Pirogova P, Vodeneev V, Mareev E. Response of photosynthesis and electrical reactions of wheat plants upon the action of magnetic fields in the Schumann resonance frequency band. Plant Signal Behav. 2024 Dec 31;19(1):2294425. doi: 10.1080/15592324.2023.2294425. Abstract Alternating magnetic fields (MF) with Schumann resonance frequencies accompanied the development of living organisms throughout evolution, but today it remains unclear whether they can have a special biological effect in comparison with surrounding non-resonant frequencies. This work shows some stimulating effect of extremely low-frequency MFs on morphometric parameters and the activity of physiological processes in wheat (Triticum aestivum L.). It is shown that the MF effect is more pronounced for transient processes - photosynthesis reactions and changes in electrical potential caused by turning on light. For light-induced electrical reactions, the dependence of the severity of the effect on the frequency of the applied MF was demonstrated. It is shown that the most pronounced effect occurs in the 14.3 Hz field, which corresponds to the second harmonic of the Schumann resonance. The predominant sensitivity of signal-regulatory systems gives reason to assume the influence of MFs with Schumann resonance frequencies on the interaction of plants with environmental factors under conditions of a changed electromagnetic environment. Such conditions can occur, for example, with an increase in lightning activity caused by climate change, which serves as the basis for the generation of Schumann resonances, and with the development of artificial ecosystems outside the Earth's atmosphere. pubmed.ncbi.nlm.nih.gov

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AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeanimal

Effect directionbenefit

PopulationWheat plants (Triticum aestivum L.)

Sample sizeNot supplied

ExposureELF

Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

Alternating extremely low-frequency magnetic fields in the Schumann resonance frequency band showed a stimulating effect on morphometric parameters and physiological process activity in wheat. Effects were more pronounced for transient processes (photosynthesis reactions and light-induced electrical potential changes), with the most pronounced effect reported at 14.3 Hz (second harmonic of the Schumann resonance).

Outcomes measured

Morphometric parameters
Photosynthesis reactions (transient processes)
Light-induced electrical reactions/changes in electrical potential
Frequency-dependence of response severity

Limitations

Sample size not reported in abstract
Exposure intensity/field strength not reported in abstract
Exposure duration and experimental protocol details not reported in abstract
Outcomes and effect sizes not quantified in abstract

View raw extracted JSON

{
  "study_type": "animal",
  "exposure": {
    "band": "ELF",
    "source": "other",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": "Wheat plants (Triticum aestivum L.)",
  "sample_size": null,
  "outcomes": [
    "Morphometric parameters",
    "Photosynthesis reactions (transient processes)",
    "Light-induced electrical reactions/changes in electrical potential",
    "Frequency-dependence of response severity"
  ],
  "main_findings": "Alternating extremely low-frequency magnetic fields in the Schumann resonance frequency band showed a stimulating effect on morphometric parameters and physiological process activity in wheat. Effects were more pronounced for transient processes (photosynthesis reactions and light-induced electrical potential changes), with the most pronounced effect reported at 14.3 Hz (second harmonic of the Schumann resonance).",
  "effect_direction": "benefit",
  "limitations": [
    "Sample size not reported in abstract",
    "Exposure intensity/field strength not reported in abstract",
    "Exposure duration and experimental protocol details not reported in abstract",
    "Outcomes and effect sizes not quantified in abstract"
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "Schumann resonance",
    "extremely low frequency",
    "alternating magnetic fields",
    "wheat",
    "photosynthesis",
    "electrical potential",
    "14.3 Hz"
  ],
  "suggested_hubs": [
    {
      "slug": "occupational-exposure",
      "weight": 0.1,
      "reason": "Mentions altered electromagnetic environments and artificial ecosystems, but not an occupational study; weak match."
    }
  ]
}

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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1080/15592324.2023.2294425
PubMed: 38147417

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