SEN4 — Beta vulgaris subsp. vulgaris

Summary

BvSEN4 (BVRB_2G040530) on sugar beet chromosome 2 encodes a xyloglucan endotransglucosylase/hydrolase (XTH) family protein with endoxyloglucan transferase and xyloglucan-specific endo-beta-1,4-glucanase activities. The product is associated with cell wall loosening, assembly, organization, and biogenesis, as well as xyloglucan catabolism and metabolism. It has been linked to responses to gibberellin, auxin, brassinosteroid, and far-red light, and to jasmonic acid biosynthesis, leaf vascular patterning, primary root development, and fruit ripening. The protein localizes to the apoplast, plant-type cell wall, Golgi, secretory vesicle, and plasma membrane. Associations with agronomic traits include sugar content, seed growth and development, brassinosteroid sensitivity, and aluminum response. Studies of related XTH family members in other species link the family to root elongation, freezing tolerance, salt tolerance, leaf senescence, and shade avoidance.