Biological effect of-Non-Ionizing radiations on Microorganism

非电离辐射对微生物的生物学效应

• 批准号: 10837009
• 负责人: SHIMIZU Kikuo
• 金额: $ 2.18万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10837009/
• 关键词: Paramecium; magnefic fields; behavior; garifoxis; 行動

Paramecium multimicronucleatum was used as a model cell to study the effects of 60 Hz magnetic fields on swimming behavior. When exposed to a vertical field of 0.6 T, the cells accumulated at the upper end of the cuvette. An analysis of the swimming behavior revealed that the exposure to the field increased the number of cells swimming upwards maximally at 1 min after onset of the exposure. This effect of the magnetic field was transient, disappearing within a few minutes during the exposure. It is suggested that the magnetic field may amplify to a large extent the negative gravitaxis of Paramecium. Effects of an induced electric field on the swimming behavior are also discussed.

以多微核草履虫为模型细胞，研究了60 Hz磁场对多微核草履虫游泳行为的影响。当暴露于0.6 T的垂直场时，细胞聚集在比色皿的上端。游泳行为的分析表明，暴露于该领域增加了最大的细胞向上游泳的数量在1分钟后开始的曝光。磁场的这种效应是短暂的，在暴露期间的几分钟内消失。磁场对草履虫的负重力轴有较大的放大作用。本文还讨论了诱导电场对游泳行为的影响。