psbA — Zea mays

Summary

ZM00001EB435340, the maize psbA gene on chromosome scaf_34, encodes a chlorophyll-binding oxidoreductase (EC 1.10.3.9) with oxygen-evolving activity and electron transfer activity. The protein localises to the chloroplast thylakoid membrane and plastid. In maize, psbA is associated with C4 photosynthesis, light absorption, plastid gene expression, membrane biogenesis, and cellular respiration. It has been connected to traits including photosynthetic rate, net photosynthetic rate, quantum yield, chlorophyll content, leaf color, leaf curling, leaf size, water use efficiency, stomatal resistance, respiration rate, carbohydrate content, protein content, drought tolerance, heterosis, and cytoplasmic male sterility. Related genes in other species link the family to grain protein content in wheat.