PGR5 — Cucumis sativus

Summary

CSA_2G171900, designated PGR5 (CsPGR5), encodes a protein with oxidoreductase activity acting on iron-sulfur protein donors and electron transfer activity, and is localized to the chloroplast thylakoid membrane. In cucumber, this gene is associated with photosynthetic electron transport in photosystem I, cellular response to light intensity, photoacclimation, and secondary metabolism including phenylpropanoid anabolism. It is linked to traits such as photosynthetic rate, carotenoid content, relative growth rate, high temperature and oxidative stress responses, and disease tolerance. Associations also include photosystem I cyclic electron transport, photoprotection, nonphotochemical quenching, ATP synthesis, and seedling survival under fluctuating light. Studies of related genes in other species link the family to non-photochemical quenching, photosynthetic stability, chloroplast development, and disease resistance.