psbA — Zea mays

Summary

ZM00001EB437100, the maize psbA gene on chromosome scaf_100, encodes a protein of Photosystem II, 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. The product localises to the photosystem II complex, chloroplast thylakoid membrane, and plastid. This gene is associated with C4 photosynthesis, light absorption, plastid gene expression, cellular respiration, membrane biogenesis, nitrogen fixation, and ribosome hibernation. It has been linked to traits including net photosynthetic rate, quantum yield, chlorophyll content, leaf colour and curling, water use efficiency, stomatal resistance, respiration rate, carbohydrate and protein content, drought tolerance, heterosis, and cytoplasmic male sterility. Related genes in other species are linked to grain protein content.