Influence of Schumann Range Electromagnetic Fields on Components of Plant Redox Metabolism in Wheat and Peas.

Plants (Basel, Switzerland) · 2022 · Mixed · Low evidence

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MixedLow evidencePaper 5730

Leaf extracts of wheat and pea plants exposed to ELF EMF at 7.8, 14.3, and 20.8 Hz showed biological effects on redox-metabolism-related components. Short-time (30 min) exposure produced more pronounced effects than long-time (18 days) exposure, and wheat cat…

Study snapshot

PublicationPlants (Basel, Switzerland) · 2022

Study typeanimal

Reported directionMixed

Evidence ratingLow

Abstract

The Schumann Resonances (ScR) are Extremely Low Frequency (ELF) electromagnetic resonances in the Earth-ionosphere cavity excited by global lightning discharges. ScR are the part of electromagnetic field (EMF) of Earth. The influence of ScR on biological systems is still insufficiently understood. The purpose of the study is to characterize the possible role of the plant cell redox metabolism regulating system in the Schumann Resonances EMF perception. Activity of catalase and superoxide dismutase, their isoenzyme structure, content of malondialdehyde, composition of polar lipids in leaf extracts of wheat and pea plants treated with short-time (30 min) and long-time (18 days) ELF EMF with a frequency of 7.8 Hz, 14.3 Hz, 20.8 Hz have been investigated. Short-time exposure ELF EMF caused more pronounced bio effects than long-time exposure. Wheat catalase turned out to be the most sensitive parameter to magnetic fields. It is assumed that the change in the activity of wheat catalase after a short-term ELF EMF may be associated with the ability of this enzyme to perceive the action of a weak EMF through calcium calmodulin and/or cryptochromic signaling systems.

Machine Enhanced Logic

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 directionmixed

PopulationWheat and pea plants

Sample sizeNot supplied

ExposureELF · short-time (30 min) and long-time (18 days)

Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

Outcomes measured

Catalase activity
Superoxide dismutase activity
Isoenzyme structure (catalase and superoxide dismutase)
Malondialdehyde content
Polar lipid composition in leaf extracts

Limitations

Sample size not reported in the abstract
Exposure intensity/field strength not reported in the abstract
Direction and magnitude of specific biomarker changes not detailed in the abstract
Mechanistic interpretation is stated as an assumption

View raw extracted JSON

{
  "study_type": "animal",
  "exposure": {
    "band": "ELF",
    "source": "other",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": "short-time (30 min) and long-time (18 days)"
  },
  "population": "Wheat and pea plants",
  "sample_size": null,
  "outcomes": [
    "Catalase activity",
    "Superoxide dismutase activity",
    "Isoenzyme structure (catalase and superoxide dismutase)",
    "Malondialdehyde content",
    "Polar lipid composition in leaf extracts"
  ],
  "main_findings": "Leaf extracts of wheat and pea plants exposed to ELF EMF at 7.8, 14.3, and 20.8 Hz showed biological effects on redox-metabolism-related components. Short-time (30 min) exposure produced more pronounced effects than long-time (18 days) exposure, and wheat catalase activity was reported as the most sensitive parameter to the magnetic fields.",
  "effect_direction": "mixed",
  "limitations": [
    "Sample size not reported in the abstract",
    "Exposure intensity/field strength not reported in the abstract",
    "Direction and magnitude of specific biomarker changes not detailed in the abstract",
    "Mechanistic interpretation is stated as an assumption"
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "Schumann resonances",
    "ELF EMF",
    "7.8 Hz",
    "14.3 Hz",
    "20.8 Hz",
    "wheat",
    "peas",
    "redox metabolism",
    "catalase",
    "superoxide dismutase",
    "malondialdehyde",
    "polar lipids",
    "plant signaling",
    "calcium calmodulin",
    "cryptochrome"
  ],
  "suggested_hubs": [
    {
      "slug": "elf-emf",
      "weight": 0.9,
      "reason": "Study examines extremely low frequency electromagnetic fields (Schumann resonance range) and biological effects."
    },
    {
      "slug": "plant-studies",
      "weight": 0.85,
      "reason": "Experimental exposure study in wheat and pea plants assessing redox metabolism biomarkers."
    }
  ]
}

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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: 10.3390/plants11151955
PubMed: 35956432

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