P5CS — Triticum aestivum

Summary

TRAESCS1D02G280700 (symbol P5CS1) on wheat chromosome 1D encodes an aldehyde dehydrogenase domain-containing protein with glutamate 5-kinase (EC 2.7.2.11) and glutamylphosphate reductase (EC 1.2.1.41) activities. The gene is associated with drought tolerance in bread wheat and has been linked to proline content, salt tolerance, freezing tolerance, water stress tolerance, and oxidative stress response. It is connected to grain yield, grain weight, spike length, tiller number, plant height, days to heading, days to maturity, stand establishment, leaf relative water content, chlorophyll content, photosynthetic rate, respiration rate, carotenoid content, sugar content, and germination rate. The encoded protein localises to the cytoplasm, mitochondria, Golgi complex, and plasmodesmata, and is associated with proline anabolism and breakdown, arginine breakdown, photorespiration, auxin transport, lignin anabolism, and the transition to flowering. Studies of related genes in other species link them to osmotic stress tolerance, root elongation, and heat tolerance.