Dual-pathway CO2 fixation promotes growth in Arabidopsis.

Photosynthesis, vital for life on Earth, is influenced by atmospheric CO2. Lu et al. recently found that introducing a novel malyl-CoA glycerate (McG) cycle into Arabidopsis thaliana works with the native Calvin-Benson-Bassham (CBB) cycle, and boosts growth, lipids, and seed yield by bypassing photorespiration, offering new strategies for crop improvement under ambient CO2 levels.