PI3K — Beta vulgaris subsp. vulgaris

Summary

BvPI3K, encoded by the sugar beet gene BVRB_6G148700 on chromosome 6, is a phosphatidylinositol 3-kinase of the Vps34 class III type, possessing protein serine/threonine kinase activity and ATP binding. It is associated with macroautophagy, pexophagy, TOR signaling, phosphoinositide-mediated signaling, and response to nutrient levels. The gene has been linked to leaf senescence, pollen germination, root hair growth, salt stress response, heat stress recovery, proline accumulation, and ethylene biosynthesis. It localizes to the endosome membrane, Golgi complex, and the class III PI3K complex. Studies of related genes in other species connect the family to plant growth and development, stomatal closure, disease resistance, and flower senescence.