IRX5 — Brachypodium distachyon

Summary

BdIRX5 (BRADI_3G28350V3) encodes a cellulose synthase (UDP-forming) enzyme (EC 2.4.1.12) with cellulose synthase activity, belonging to the cellulose synthase and CES_Znf_RING domain families. This gene is associated with secondary and primary cell wall biogenesis, cellulose and lignin anabolism, cortical microtubule organization, multidimensional cell growth, and responses to hyperosmotic salinity, cytokinin, and fungal defence. It localizes to the CESA complex, plasma membrane, Golgi, cell plate, and plasmodesmata. Traits linked to BdIRX5 include biomass yield, stem length, seed protein content, plant vigor, herbicide sensitivity, and disease tolerance. Studies of related genes in other species connect the family to secondary wall cellulose deposition, xylem development, drought resistance, and grain weight.