Nanometer-scale elongation rate fluctuations in the<i>Myriophyllum aquaticum</i>(Parrot feather) stem were altered by radio-frequency electromagnetic radiation

Senavirathna, Mudalige Don Hiranya Jayasanka; Asaeda, Takashi; Thilakarathne, Bodhipaksha Lalith Sanjaya; Kadono, Hirofumi

doi:10.4161/psb.28590

Cited by 6 publications

(1 citation statement)

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“…Surducan et al [ 15 ] also found stimulation of seedling growth in bean and maize after exposure to EMF (2.452 GHz, 0.005 mW cm −2 ). Senavirathna et al [ 55 ] studied real-time impact of EMF radiation (2 GHz, 1.42 W m −2 ) on instantaneous growth in the aquatic plant, parrot's feather ( Myriophyllum aquaticum , Haloragaceae), using nanometer scale elongation rate fluctuations. These authors demonstrated that EMF-exposed plants displayed reduced fluctuation rates that lasted for several hours after the exposure, strongly suggesting that plants' metabolism experienced a stressful situation.…”

Section: Biological Responsesmentioning

confidence: 99%

Plant Responses to High Frequency Electromagnetic Fields

Vian

Davies

Gendraud

et al. 2016

BioMed Research International

116

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High frequency nonionizing electromagnetic fields (HF-EMF) that are increasingly present in the environment constitute a genuine environmental stimulus able to evoke specific responses in plants that share many similarities with those observed after a stressful treatment. Plants constitute an outstanding model to study such interactions since their architecture (high surface area to volume ratio) optimizes their interaction with the environment. In the present review, after identifying the main exposure devices (transverse and gigahertz electromagnetic cells, wave guide, and mode stirred reverberating chamber) and general physics laws that govern EMF interactions with plants, we illustrate some of the observed responses after exposure to HF-EMF at the cellular, molecular, and whole plant scale. Indeed, numerous metabolic activities (reactive oxygen species metabolism, α- and β-amylase, Krebs cycle, pentose phosphate pathway, chlorophyll content, terpene emission, etc.) are modified, gene expression altered (calmodulin, calcium-dependent protein kinase, and proteinase inhibitor), and growth reduced (stem elongation and dry weight) after low power (i.e., nonthermal) HF-EMF exposure. These changes occur not only in the tissues directly exposed but also systemically in distant tissues. While the long-term impact of these metabolic changes remains largely unknown, we propose to consider nonionizing HF-EMF radiation as a noninjurious, genuine environmental factor that readily evokes changes in plant metabolism.

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Section: Biological Responsesmentioning

confidence: 99%