Microwave radiation alters burn injury-evoked electric potential in Nicotiana benthamiana.

Plant signaling & behavior · 2018 · Mixed · Low evidence

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MixedLow evidencePaper 6621

Study snapshot

PublicationPlant signaling & behavior · 2018

Study typeanimal

Reported directionMixed

Evidence ratingLow

Abstract

The dielectric effect enforced on charged ions and dipolar molecules by the oscillating electric field of microwaves may influence electric signaling in plants. In the present study, the exposure of Nicotiana benthamiana plants to continuous wave 2.45 GHz microwave radiation with 1.9 - 2.1 W m power density significantly reduced the amplitude of leaf burning-induced variation potential along the plant stem. The change in amplitude of the variation potential occurred mainly because of a significant reduction of the depolarization rate. This effect was not observed during the post-microwave exposure period. The unique characteristics observed in the variation potentials were also observed under microwave exposure, suggesting unaffected information delivery to distant locations or unaffected transport of specific chemicals generated by the injury.

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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 directionmixed

PopulationNicotiana benthamiana plants

Sample sizeNot supplied

Exposuremicrowave · 2450 MHz

Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

Continuous wave 2.45 GHz microwave exposure at 1.9–2.1 W m power density significantly reduced the amplitude of leaf burning-induced variation potential along the stem, mainly due to a significant reduction in depolarization rate. The effect was not observed during the post-exposure period, and other variation potential characteristics were reported as unchanged under exposure.

Outcomes measured

Amplitude of leaf burning-induced variation potential along the plant stem
Depolarization rate (component of variation potential)
Post-exposure persistence of effect
Characteristics of variation potentials (information delivery/transport indicators)

Limitations

Sample size not reported in abstract
Exposure duration not reported in abstract
Power density units/context as stated in abstract ("1.9 - 2.1 W m") without further specification

View raw extracted JSON

{
  "study_type": "animal",
  "exposure": {
    "band": "microwave",
    "source": null,
    "frequency_mhz": 2450,
    "sar_wkg": null,
    "duration": null
  },
  "population": "Nicotiana benthamiana plants",
  "sample_size": null,
  "outcomes": [
    "Amplitude of leaf burning-induced variation potential along the plant stem",
    "Depolarization rate (component of variation potential)",
    "Post-exposure persistence of effect",
    "Characteristics of variation potentials (information delivery/transport indicators)"
  ],
  "main_findings": "Continuous wave 2.45 GHz microwave exposure at 1.9–2.1 W m power density significantly reduced the amplitude of leaf burning-induced variation potential along the stem, mainly due to a significant reduction in depolarization rate. The effect was not observed during the post-exposure period, and other variation potential characteristics were reported as unchanged under exposure.",
  "effect_direction": "mixed",
  "limitations": [
    "Sample size not reported in abstract",
    "Exposure duration not reported in abstract",
    "Power density units/context as stated in abstract (\"1.9 - 2.1 W m\") without further specification"
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "microwave radiation",
    "2.45 GHz",
    "continuous wave",
    "power density",
    "plant electric signaling",
    "variation potential",
    "burn injury",
    "Nicotiana benthamiana",
    "depolarization rate"
  ],
  "suggested_hubs": []
}

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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: 10.1080/15592324.2018.1486145
PubMed: 29944441

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