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| 1.
論文 |
論文
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山田, 外史 ; 橋口, 敬 ; 細野, 隆次 ; 山本, 博 ; 別所, 一夫 ; 上野, 照剛 ; 谷本, 能文 ; Yamada, Sotoshi ; Hashiguchi, Takashi ; Hosono, Ryuji ; Yamamoto, Hiroshi ; Bessho, Kazuo ; Ueno, Shoogo ; Tanimoto, Yoshifumi
概要:
金沢大学理工研究域電子情報学系<br />Electromagnetic devices such as superconducting magnets, magnetically levitated vehicles and magnet
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ic resonance imaging(MRI) create strong magnetic fields within their immediate vicinity. This has generated some concerns over the effects that these fields may have on the outside environment and in particular on living organisms. 50/60Hz magnetic fields are of special concern because living organisms are exposed to them on a continuing basis.We investigate the influence of a strong 60Hz AC magnetic field of 1.2T on organisms. The high AC magnetic field is generated by using a multilayer eddy-current type AC magnetic generator developed in our laboratory. In this paper, in vitro experiments were performed with biochemical reactions, enzyme and restriction endonuclese activities.As a result, the magnetic field inhibited catalase activity slightly only in biochemical reactions. Other reactions such as β-galactosidase activity and restriction endonuclese activity were not influenced at all. The results suggest that high 60Hz AC magnetic fields may influence biological functions in some organisms.
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| 2.
論文 |
論文
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谷本, 能文 ; 泉, 俊輔 ; 吉田, 耕一 ; 鈴木, 友恵 ; 藤原, 好恒 ; 平田, 敏文 ; 山田, 外史 ; 伊藤, 喜久男
概要:
ミドリムシに対する強磁場の影響について研究した。生きているミドリムシは,水平方向の勾配強磁場(380T2m-1)中では,高磁場方向に移動する(正の走磁性)。一方,EDTAで殺したミドリムシは,低磁場側に集まった。8Tの均一磁場では走磁性は見
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られなかった。強磁場中のミドリムシの顕微鏡観察の結果,ミドリムシは磁場とほぼ垂直方向に配向して泳ぎ,また殺したミドリムシも磁場配向していた。ミドリムシの正の走磁性は,ミドリムシの磁場配向とミドリムシにかかる不均一な磁気力の2つを考慮することにより説明された。 Effect of high magnetic field on Euglena gracilis Z was examined. Euglena was placed in a high gradient magnetic field (380 T2m-1). Living Euglena moved to higher magnetic field, whereas dead Euglena moved to the opposite side (lower magnetic field). From the in-situ microscope observation, Euglena was found to be oriented approximately perpendicular to the magnetic field regardless of life and death. Based on the above observations the mechanism of magnetotaxis of Euglena was discussed.
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| 3.
図書 |
図書
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尾関寿美男, 谷本能文, 山口益弘編著 ; 北澤宏一監修
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