PPC — Sorghum bicolor

Summary

SbPPC (SORBI_3003G301800) on sorghum chromosome 3 encodes a phosphoenolpyruvate carboxylase (EC 4.1.1.31) with phosphoenolpyruvate carboxylase activity, protein phosphorylated amino acid binding, and protein binding functions. This gene is associated with phloem sucrose loading, stomatal opening, seed germination, leaf development, cell division, TCA cycle, primary metabolism, brassinosteroid-mediated signalling, and cellular response to phosphate starvation. It has been linked to photosynthetic rate, grain filling period, anthesis time, leaf chlorosis, nitrate uptake, root morphology, seedling growth, and amino acid content. The product localises to the cytosol, chloroplast stroma, plasmalemma, mitochondria, Golgi complex, apoplast, plant-type vacuole, and plasmodesmata. Studies of related genes in other species link the family to salt stress tolerance, phosphate deficiency response, nitrate response, drought tolerance, and anthesis silking interval.