Effect of extremely low frequency electromagnetic field on the pathogenicity of Magnaporthe oryzae.

PAPER pubmed The Science of the total environment 2023 Animal study Effect: mixed Evidence: Low

Read original paper → DOI: 10.1016/j.scitotenv.2023.161939 PMID: 36731572 Evidence Lab

Abstract

Numerous works have reported that extremely low frequency electromagnetic fields (ELF-EMFs) were associated with human health; however, little is known about their effects on the occurrence of agricultural diseases. In this study, Magnaporthe oryzae was used as a model organism, and its pathogenicity under 50 Hz, 3 mT ELF-EMF was studied. Our results showed that the pathogenicity, growth rate, and conidia generation of M. oryzae were enhanced under ELF-EMF exposure. In addition, M. oryzae exposed to ELF-EMF showed enhanced tolerance to cell wall-perturbing agents sodium lauryl sulphate, and increased expression of cell wall integrity-related genes, including RAC1, CDC42, RHO2, and NOX2. In addition, the level of reactive oxygen species (ROS) and the expression level of ROS scavenger system-related gene MoAP1 increased in ELF-EMF-exposed samples, whereas the total antioxidant capacity and the activities of superoxide dismutase and catalase did not change. Results of our study demonstrated that exposure to 50 Hz, 3 mT ELF-EMF enhanced the infection ability of M. oryzae, which present new important challenges for understanding the effect of ELF-EMF exposure on farmland ecology, especially on agricultural diseases.

AI evidence extraction

At a glance

Study type

Animal study

Effect direction

mixed

Population

Magnaporthe oryzae (fungus; model organism)

Sample size

—

Exposure

ELF other · 5.0E-5 MHz

Evidence strength

Low

Confidence: 78% · Peer-reviewed: yes

Main findings

Under 50 Hz, 3 mT ELF-EMF exposure, Magnaporthe oryzae showed enhanced pathogenicity/infection ability, growth rate, and conidia generation. ELF-EMF-exposed samples also showed increased tolerance to sodium lauryl sulphate, increased expression of cell wall integrity-related genes (RAC1, CDC42, RHO2, NOX2), increased ROS levels and MoAP1 expression, while total antioxidant capacity and superoxide dismutase and catalase activities did not change.

Outcomes measured

Pathogenicity/infection ability
Growth rate
Conidia generation
Tolerance to cell wall-perturbing agent (sodium lauryl sulphate)
Expression of cell wall integrity-related genes (RAC1, CDC42, RHO2, NOX2)
Reactive oxygen species (ROS) level
Expression of ROS scavenger system-related gene (MoAP1)
Total antioxidant capacity
Superoxide dismutase activity
Catalase activity

Limitations

Exposure duration not reported in abstract
Sample size and replication not reported in abstract
Study conducted in a fungal model organism; relevance to human health not addressed

View raw extracted JSON

{
    "study_type": "animal",
    "exposure": {
        "band": "ELF",
        "source": "other",
        "frequency_mhz": 5.00000000000000023960868011929647991564706899225711822509765625e-5,
        "sar_wkg": null,
        "duration": null
    },
    "population": "Magnaporthe oryzae (fungus; model organism)",
    "sample_size": null,
    "outcomes": [
        "Pathogenicity/infection ability",
        "Growth rate",
        "Conidia generation",
        "Tolerance to cell wall-perturbing agent (sodium lauryl sulphate)",
        "Expression of cell wall integrity-related genes (RAC1, CDC42, RHO2, NOX2)",
        "Reactive oxygen species (ROS) level",
        "Expression of ROS scavenger system-related gene (MoAP1)",
        "Total antioxidant capacity",
        "Superoxide dismutase activity",
        "Catalase activity"
    ],
    "main_findings": "Under 50 Hz, 3 mT ELF-EMF exposure, Magnaporthe oryzae showed enhanced pathogenicity/infection ability, growth rate, and conidia generation. ELF-EMF-exposed samples also showed increased tolerance to sodium lauryl sulphate, increased expression of cell wall integrity-related genes (RAC1, CDC42, RHO2, NOX2), increased ROS levels and MoAP1 expression, while total antioxidant capacity and superoxide dismutase and catalase activities did not change.",
    "effect_direction": "mixed",
    "limitations": [
        "Exposure duration not reported in abstract",
        "Sample size and replication not reported in abstract",
        "Study conducted in a fungal model organism; relevance to human health not addressed"
    ],
    "evidence_strength": "low",
    "confidence": 0.7800000000000000266453525910037569701671600341796875,
    "peer_reviewed_likely": "yes",
    "keywords": [
        "extremely low frequency",
        "ELF-EMF",
        "50 Hz",
        "3 mT",
        "Magnaporthe oryzae",
        "pathogenicity",
        "conidia",
        "cell wall integrity",
        "ROS",
        "MoAP1"
    ],
    "suggested_hubs": []
}

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

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