摘要
利用培养的海洋甲藻Ｐｙｒｏｃｉｓｔｉｓｅｌｅｇａｎｓ（Ｐ．ｅｌｅｇａｎｓ）作为模型，研究外电场对细胞发光强度－时间曲线的影响。实验结果表明，细胞在外电场作用下所产生的发光（电激发光）行为与细胞本身有关，电激发光是一种延迟发光，其松驰过程不遵从指数衰减规律而表现出双曲线的规律。从物理学的角度讨论了细胞电激发光的相干性及外电场对生命系统和非生命系统的作用的区别，前者更重要的是信息作用，从而提示了研究外电场对细胞作用以及细胞与环境和细胞与细胞间通讯的新方法。
Cultured Pyrocistis elegans (P. elegans) were used as a model to study the effect of external electrical field on photon emission from cells. The results show that the behavior of photon emission from P. elegan induced by electric stimulation (electrically stimulated photo emission,ESPE) depends upon the cells, and the ESPE displays 'delayed luminescence', its relaxation does not follow an exponential law, but shows a hyperbolic behavior. Some discussions are made on coherence of photon emission from the Cell population and on the difference of the effects of external fields on living system and on non-living systems. From point of view of physics, both have energy relationship, but the former is more informational that may open a new approach to study cell to environment and cell to cell communication.
出处
《生物物理学报》
CAS
CSCD
北大核心
1994年第4期641-650,共10页
Acta Biophysica Sinica
基金
国家自然科学基金
德国国家研究部资助
关键词
甲藻
电场作用
电激发光
海洋甲藻
Electric field effect Electroluminescence Pyrocistis elegans Cell communication Coherence
