Production of sound waves by bacterial cells and the response of bacterial cells to sound
| Autor: | Shigeo Endo, Torakichi Kobayashi, Akira Harata, Housaku Miyoi, Katsura Endoh, Michio Matsuhashi, Satoshi Takeuchi, Mikio Tobi, Alla N. Pankrushina, Hideyuki Ohshima, Ken Murayama, Tomohiko Kaneko, Susumu Yoshimura, Tsuguo Sawada, Hiroshi Watanabe, Yoshihiro Mano, Sugio Otani, Masao Hyodo |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
geography
geography.geographical_feature_category Microphone Bacillus subtilis Biology biology.organism_classification Applied Microbiology and Biotechnology Microbiology Signal Colony formation otorhinolaryngologic diseases Biophysics Bacillus carboniphilus Ultrasonic sensor Sound (geography) Sound wave |
| Zdroj: | The Journal of General and Applied Microbiology. 44:49-55 |
| ISSN: | 1349-8037 0022-1260 |
| DOI: | 10.2323/jgam.44.49 |
| Popis: | Bacterial cells enhance the proliferation of neighboring cells under stress conditions by emitting a physical signal. Continuous single sine sound waves produced by a speaker at frequencies of 6-10, 18-22, and 28-38 kHz promoted colony formation by Bacillus carboniphilus under non-permissive stress conditions of high KCl concentration and high temperature. Furthermore, sound waves emitted from cells of Bacillus subtilis at frequencies between 8 and 43 kHz with broad peaks at approximately 8.5, 19, 29, and 37 kHz were detected using a sensitive microphone system. The similarity between the frequency of the sound produced by B. subtilis and the frequencies that induced a response in B. carboniphilus and the previously observed growth-promoting effect of B. subtilis cells upon B. carboniphilus through iron barriers, suggest that the detected sound waves function as a growth-regulatory signal between cells. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|