PSAO — Pisum sativum

Summary

PsPSAO (PSAT7G186640) on garden pea chromosome 7LG7 encodes the Photosystem I subunit O (PsaO) protein, a component of the PSI complex. The gene product is associated with mRNA binding and protein binding activities. It is linked to photosynthesis, specifically light harvesting in photosystem I and the photosynthetic electron transport chain, as well as electron transfer. Beyond photosynthesis, PsPSAO is associated with seed development, nodulation, nitrogen fixation, cell differentiation, detoxification, and NO storage. The protein localizes to the photosystem I complex, thylakoid membrane, and also shows associations with extracellular and mitochondrial locations. Related genes in other species link the PsaO family to photochemical quenching, salt tolerance, and state transitions.