psbA — Triticum aestivum

Summary

TRAESCS1D02G179900 (TaPsbA, symbol psbA) on bread wheat chromosome 1D encodes a protein with the PSII_D1 domain and is localized to the photosystem II and chloroplast thylakoid membrane. The gene product is annotated with oxidoreductase activity acting on diphenols and related substances as donors, oxygen as acceptor, oxygen-evolving activity, chlorophyll binding, electron transfer activity, and iron binding. TaPsbA is associated with dark adaptation, photoprotection, response to herbicide, chlorophyll fluorescence, generation of precursor metabolites and energy, and virus-induced PTGS. It is linked to radiation use efficiency, photosynthetic ability, carotenoid content, quantum yield, photosynthetic rate, and root length. Studies of related genes in other species connect the D1 family to heat tolerance, grain weight, seed germination, grain yield, and salt tolerance.