Photosynthesis articles from across Nature Portfolio

Suppressing wheat ASPARTIC PROTEASE 1 promotes the homeostasis of PsbO, stabilizes the photosystem complex and elongates the duration of active photosynthesis, leading to increases in the CO₂ assimilation rate, kernel weight and yield.

Generally, net O₂ consumption becomes dominant when photosynthesis is suppressed at night in green organisms. Here, Bag et al. show that Scots pine and Norway spruce needles display strong O₂ consumption when extremely low temperatures coincide with high solar irradiation during early spring.

Rubisco is responsible for sequestering virtually all of the carbon dioxide in the global carbon cycle. Here, the authors demonstrate that two conserved phosphatases degrade Rubisco misfire products that inhibit photosynthesis in plants.

Photosynthesis declines at mild temperatures in terrestrial plants. Here, the authors use published data to show that decline in photosynthetic CO₂ assimilation rate with rising temperatures can be accounted for by Rubisco deactivation and declines in chloroplast electron transport rate.

H₂ generation from Chlamydomonas reinhardtii cultured under anoxia is found to be limited by activation of a slow-down switch in photosystem II that modulates electron transfer at the acceptor site of this photosystem following light exposure.