Growth-promoting effect of carbon material upon bacterial cells propagating through a distance

The Journal of General and Applied Microbiology

Mayumi Komiyama¹  Michio Matsuhashi³  Hideyuki Ohshima¹  Mikio Tobi¹  Tomohiko Kaneko³  Katsura Endoh¹  Alla N. Pankrushina³  Yoshihiro Mano¹  Sugio Otani²  Hiroshi Watanabe¹  Masao Hyodo¹  Shigeo Endo¹ 

[1] Department of Material Science and Technology, Tokai University;Yoshlmura π-Electron Materials Project, Japan Science and Technology Corporation, c/o Matsushita Research Instltute Tokyo, Inc.

关键词: bacteria;    bacterial growth;    carbon;    electromagnetic;    graphite;    growth regulation;    stress;    ultrasonic;   

DOI  :  10.2323/jgam.43.225

学科分类：微生物学和免疫学

来源: Applied Microbiology, Molecular and Cellulrar Biosciences Research Foundation

【 摘 要 】

Carbon material such as graphite and activated charcoal, but not diamond, causes the promotion of growth of certain bacteria under ordinarily non-permissive stress conditions over a distance of several centimeters. Bacillus carboniphilus under the stress of a high KCl concentration and high temperature responded to this remote effect of carbon material with enhanced growth, and thermophile bacterium Bacillus stearothermophilus responded similarly yet moderately under the stress of low temperature. The remote effect of carbon was caused by its activation with external energy, probably of electromagnetic nature, as this effect was markedly decreased by sheltering the experimental system with an iron or aluminum barrier. Carbon material probably transforms the external oscillatory pulses or radiation into a signal exerting, far-reaching, growth-promoting effect upon cells. The most plausible candidate of signals emitted from carbon was considered to be (ultra)sonic.

【 授权许可】

Unknown