Open access
Sep 2026
A CO2-limitation-induced cytosolic repressor enables shutdown of the algal CO2-concentrating mechanism
Aquatic photosynthetic organisms face limited CO2 availability because CO2 diffuses slowly in water and most dissolved inorganic carbon (Ci) exists as HCO3− at physiological pH. To overcome this limitation, aquatic photoautotrophs operate CO2-concentrating mechanisms (CCMs) that elevate CO2 around Rubisco and sustain c...
Shizuka Miichi, Daisuke Shimamura, Junko Yasuda et al.
· bioRxiv · 0 citations