Marine cyanobacteria contribute to global carbon balance by fixing CO2 and the shift between CO2 fixation and ATP production requires fine-tuning its metabolic fluxes to light–dark cycles. These cycles can be very short in marine environments due to sea currents and fast adaptation is key to avoid futile cycles. In this study, Lu et al. provide a mechanistic insight into how this process is tightly regulated.
- Kuan-Jen Lu
- Chiung-Wen Chang
- James C. Liao
