Cellulose synthesis via the FEI2 RLK/SOS5 pathway and cellulose synthase 5 is required for the structure of seed coat mucilage in Arabidopsis. - Harpaz-Saad S; McFarlane HE; Xu S; Divi UK; Forward B; Western TL; Kieber JJ (The Plant journal : for cell and molecular biology, 2011)