Analytical Sciences


Abstract − Analytical Sciences, 24(3), 423 (2008).

Observation of Oscillation in Bacterial Luminescence
Yuichi SATO*,** and Satoshi SASAKI***
*Department of Biotechnology and Life Science, Graduate School of Technology, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
**Bionics Program, Graduate School, Tokyo University of Technology, 1404-1 Katakura, Hachioji, Tokyo 192-0982, Japan
***School of Bionics, Tokyo University of Technology, 1404-1 Katakura, Hachioji, Tokyo 192-0982, Japan
Oscillation in the bioluminescent intensity from a luminous bacteria suspension was observed. The time course of the luminescence intensity from a suspension containing luminous bacteria was measured. The oscillation mode changed with the liquid broth component. The optical density and dissolved oxygen (DO) concentration were measured simultaneously with the luminescence intensity, and a possibility was indicated that both diauxic growth and oxygen reaction-consumption resulted with oscillation.