Seed and fruit crops both depend on pollination, a process highly sensitive to heat. At elevated temperatures, pollen tubes fail to grow through the female pistil tissues and deliver sperm cells in ovules for fertilization and seed formation. An increase in average worldwide temperatures will thus undermine crop productivity. In this proposal, we propose to study LARP6C protein in tomato, previously identified by the CNRS team, using many state-of-the-art procedures to understand its potential roles in pollen tube growth under permissible and HS temperatures