高功率毫米波辐照对秀丽线虫行为学和细胞形态学的影响
Behavioral response and cell morphology changes of Caenorhabditis elegans under high power millimeter wave irradiation
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摘要: 采用角锥喇叭天线，使用不同输出平均功率的毫米波激光辐照秀丽线虫，采用实时显微摄像系统记录线虫行为学变化，并使用体视显微镜观察线虫细胞形态学变化。受照射后自由活动的秀丽线虫能够快速逃离高功率毫米波的辐照区域。当受输出平均功率为10 W和12 W辐照后，线虫先后出现运动速度增加、运动速度减慢直至身体僵直不动的变化过程。当输出平均功率为5 W时，线虫出现热耐受现象。细胞形态学观察结果显示:辐照后的线虫腹中卵细胞核结构出现不同程度的异常。高功率毫米波辐照可显著影响线虫的行为学特征及细胞形态学，同时说明秀丽线虫是可适用于高功率毫米波生物效应研究的模式生物之一。Abstract: C. elegans were exposed to high power millimeter waves(MMWs) with different mean power densities, to investigate their behavioral response and cell morphology changes under MMW irradiation. The time-course photomicrography system was used to record the behavioral changes of C. elegans. The behavioral response and cell morphology changes were further observed by stereoscopic microscopes. The results show that freely moving C. elegans will escape from the MMW irradiation region quickly. After the exposure to MMWs with output mean power of 10 W and 12 W, the bending speed of C. elegans increases significantly at first, while the movement gradually slows down until the bodies get rigid. However, exposed to 5 W MMW, C. elegans show a distinctive tolerant reaction because of the thermal effect.
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Key words:
- high power milimeter wave /
- biological effect /
- c.elegans /
- behavioral changes /
- cell morphology
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