光、电、次声对细菌生长特性的影响  

Effect of Several Kind Physics Factors on the Bacterial Growth

作　　者：马显光[1] 蒋洪[1] 邓渝[2] 孙丽丽[1] 刘俊康[2] 

机构地区：[1]第三军医大学基础部物理学教研室,重庆400038 [2]第三军医大学生物波研究室,重庆400038

出　　处：《中国医学物理学杂志》2009年第5期1449-1451,共3页Chinese Journal of Medical Physics

摘　　要：目的:研究可见光、次声波和磁场等几种物理因子对变形杆菌波动生长的影响。方法:将在LB培养基中接种培养的变形杆菌分别放在灯光、磁场和次声场中作用一段时间,观察它的波动生长轨迹。结果:发现变形杆菌受到可见光、次声波和磁场的作用后,波动生长形态会发生微妙的变化。结论:试验发现变形杆菌在磁场中沿着磁力线的方向运动,且在相互排斥的磁场中运动速度有减慢的迹象,在相互吸引的磁场中运动有加速的迹象;在可见光和低频电场的复合作用下分裂速度减慢,并且对光照有记忆作用;在次声波的作用下细菌的鞭毛发生断裂,提示次声波对细菌的生长可能有抑制作用。Objective： To study the influence to the undulation of the bacterium grow by visible light, infra-audible sound and magnetic field equal several kinds of physics factors. Methods： Bacterium （the experiment used Proteus Mirabilis） are places on the light, the magnetic field and the infrasound field which affects for period of time, observes its undulation growth path. Results： Show the bacterium （Proteus Mirabilis） exposure to different physical factor, the undulation growth pattern will have some subtle changes. Conelusinns： The bacterium will move along with magnetic force direction in the magnetic field, the bacterium has the memory function to the illumination; The infrasound wave may cause baeterium＇s flagella break, The growth of bacterium may be inhibited.

关 键 词：变形细菌 物理因子 刺激 生长特性 

分 类 号：Q035[生物学] Q64