この研究は、GSM携帯電話からの放射がアマ（亜麻：学名Linum usitatissimum L.）の実生に及ぼす影響を調べた。この実生にさまざまな弱い環境ストレスを与え、その後2日間のカルシウム欠乏を与えると、胚軸（根と子葉の間の茎の部分）に表皮分裂組織の形成を引き起こす。このような分裂組織の形成は、機械的刺激および寒冷ショックの場合、1か月後に10〜20個の形成でプラトーに達する。今回の研究では、携帯電話電磁界放射の場合、分裂組織の形成を引き起こし、それは約6個でプラトーに達した。今回の実験では、Gunn発振器を用いて、非熱レベルの105 GHzを放射させた。この2時間ばく露1回で、弱い環境刺激によって誘導されるものと同様の動態論で分裂組織の形成が誘導されることが示された、と報告している。
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To study the effects of electromagnetic irradiation in the 100 GHz range on plants.
A sensitive experimental system was used: week-old seedlings of flax are subjected to a temporary calcium deprivation. This results in the production of epidermal meristems (meristems are small groups of actively dividing cells) in the hypocotyls (part of the stem between the root and the first leaves), typically 10-20 meristems after a month, provided the seedlings have previously undergone an exposure to different stresses or stimuli (such as drought or cold shock). In control experiments designed to minimize these stresses, the mean number of meristems produced per plant is 0 or 1 after subjecting seedling to calcium deprivation. Recently, the authors have shown that irradiation from a global system for mobile communication (GSM) telephone also triggers production of meristems with a plateau of around six meristems.
ばく露時間: continuous for 2 h
|ばく露時間||continuous for 2 h|
|Distance between exposed object and exposure source||25 cm|
|ばく露装置の詳細||Seedling irradiation was carried out using a 50 mW Gunn oscillator mounted 25 cm above them. The output angle of the beam was 12°, leading to an estimated mean power density of the order of 10 W/m² at the base of the hypocotyls.|
|Additional information||Seedlings were exposed to radiation on day 6, followed by calcium deprivation during days 7 and 8. The following controls were performed: (1) irradiation without the calcium deprivation step, (2) no irradiation but inclusion of the calcium deprivation step, and (3) no irradiation and no calcium deprivation. All culture boxes (control and experimental) were placed in the same culture room. For irradiation the corresponding boxes were carefully carried to another culture room and taken back again.|
A single 2 h exposure at 105 GHz at non-thermal levels induces meristem production with kinetics similar to that induced by weak environmental stimuli and irradiation from GSM telephone: seedlings produced an average of 7 meristems 3 weeks after the end of the calcium deprivation.