GLU — Triticum turgidum subsp. durum

Summary

TRITD2AV1G036960 (symbol GLU, also known as TtGLU) on durum wheat chromosome 2A encodes a ferredoxin-dependent glutamate synthase (Fd-GOGAT; EC 1.4.7.1), a central enzyme in nitrogen assimilation that catalyses the conversion of glutamine and 2-oxoglutarate to two molecules of glutamate. The gene is associated with grain filling period, grain protein content, photosynthetic rate, leaf senescence, and seedling growth and development traits. It is linked to responses to cold, light, sucrose, ammonia, and brassinosteroid signalling, as well as to cell redox homeostasis, circadian rhythm, and the hypersensitive response. The product localises to chloroplast stroma, thylakoid, amyloplast, and stromule. Studies of related genes in other species connect it to nitrogen recycling, grain quality, drought and salt stress responses, aluminium tolerance, and leaf senescence.