The GTS1 gene product facilitates the self-organization of the energy metabolism oscillation in the continuous culture of the yeast Saccharomyces cerevisiae

Abstract

To study the role of the GTS1 gene in the energy metabolism oscillation in continuous cultures of yeast from the physical aspect, time-series data of dissolved oxygen oscillations were analyzed by transforming them into power spectra and by creating two-dimensional trajectories using time delay embedding technique. We found that the wild-type cells organized themselves into a stable limit cycle oscillation and that the GTS1-deleted mutant, gts1Δ, usually showed transient oscillations whose power spectra resembled those of 1/f noise. Thus, we suggested that GTS1 plays an important role in the self-organization of the energy metabolism oscillation.