psbA — Zea mays

Summary

ZM00001EB441950, the maize psbA gene on chromosome scaf_465, encodes the D1 protein of Photosystem II, a chlorophyll-binding oxidoreductase (EC 1.10.3.9) with oxygen-evolving and electron transfer activity. The gene is associated with C4 photosynthesis, light absorption, and localises to the chloroplast thylakoid membrane and plastid. It has been linked to net photosynthetic rate, quantum yield, chlorophyll content, water use efficiency, drought tolerance, leaf color and size, heterosis, cytoplasmic male sterility, respiration rate, carbohydrate and protein content, and stomatal resistance. Additional associations include ribosome hibernation, plastid gene expression, nitrogen fixation, and membrane biogenesis. Related genes in other species link it to grain protein content.