研究のタイプ: 医学/生物学の研究 (experimental study)

[芳香植物におけるテルペンの発散と含有量に対するマイクロ波電磁界照射の影響] med./bio.

Influence of microwave frequency electromagnetic radiation on terpene emission and content in aromatic plants.

掲載誌: J Plant Physiol 2014; 171 (15): 1436-1443

この研究は、芳香性の植物(トウガラシ:Petroselinum crispum、オランダミツバ:Apium graveolens、イノンド: and Anethum graveolens)の葉の解剖学、エッセンシャルオイル含有量、発散に対するマイクロ波照射(WLANおよびGSMの周波数帯)の影響を調べた。その結果、マイクロ波照射により、細胞膜の薄化、葉緑体ミトコンドリアの小型化、揮発性成分の発散増加(特にモノテルペンと緑の匂い(GLV))などが見られたと報告している。

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研究目的(著者による)

The effects of exposure of different aromatic plants to an electromagnetic field of 2.4 GHz or 900 MHz (WiFi or GSM) on leaf anatomy as well as etheric oil content and volatile emissions as markers of stress should be investigated.

詳細情報

Three sorts of aromatic plants were cultivated and divided into three groups: 1) exposure to a 900 MHz GSM signal, 2) exposure to a 2.4 GHz WiFi signal and 3) control group without exposure.
For all investigations, 8 of 15 cultivated plants from each sort and group were used.

影響評価項目

ばく露

ばく露 パラメータ
ばく露1: 860–910 MHz
ばく露時間: continuous for 3 weeks
GSM
ばく露2: 2.412–2.48 GHz
ばく露時間: continuous for 3 weeks

ばく露1

主たる特性
周波数 860–910 MHz
タイプ
  • electromagnetic field
ばく露時間 continuous for 3 weeks
Additional information GSM
Additional information operating in four bands, power out 29 dBm, signal generated by modified AP5200 generator (D-LINK, China)
ばく露装置
ばく露の発生源/構造
ばく露装置の詳細 15 plants were placed in chamber with a degree of isolation of 60 dB; temperature was maintained at 25°C and humidity at 65%; antenna was placed in the center of the ceiling
Sham exposure A sham exposure was conducted.
パラメータ
測定量 種別 Method Mass 備考
電力密度 100 mW/m² - 測定値 - -

ばく露2

主たる特性
周波数 2.412–2.48 GHz
タイプ
  • electromagnetic field
ばく露時間 continuous for 3 weeks
Additional information WLAN
Additional information signal generated by D-LINK wireless router 802.11 g/2.4 GHz, power out 19 dBm
ばく露装置
ばく露の発生源/構造
  • E1と同じ装置
パラメータ
測定量 種別 Method Mass 備考
電力密度 70 mW/m² - 測定値 - -

ばく露を受けた生物:

方法 影響評価項目/測定パラメータ/方法

研究対象とした生物試料:
調査の時期:
  • ばく露後

研究の主なアウトカム(著者による)

In palisade cells from exposed plants (groups 1 and 2), the thickness of the cell walls and length and area of chloroplasts and mitochondria were decreased compared to plants of the control group, with WiFi-exposed plants (group 2) showing the most enhanced effects (remark EMF-Portal: numbers of investigated organelles not stated and significance of the results not clear).
Both photosynthetic parameters were significantly decreased in exposed plants compared to the control group, and in dill and celery plants, WiFi exposure showed significantly reduced values compared to GSM exposure (group 1).
The content of etheric oils was significantly changed in both exposure groups compared to the control group. However, only GSM exposed plants showed a consistent trend with increased values.The emission rates of etheric oils showed significantly different values for both exposure groups compared to the control group as well. Here, a trend towards increased values was observed in both groups with the highest values found in WiFi exposed plants. However, specific marker oils for stress were only found scarcely, but increased emission of physiological etheric oils can be an indicator for stress as well.
The authors conclude that exposure of different aromatic plants to an electromagnetic field of 2.4 GHz or 900 MHz (WiFi or GSM) could influence leaf anatomy as well as the etheric oil content and volatile emissions, what might be an indication for stress. WiFi seems to have a stronger effect than GSM in this context.

研究の種別:

研究助成

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