Endosperm secretion remodels the maternal seed coat
Yang Ke, Wenbin Guo, Yuling Tang, Yue Li, Yunjun Zhu, Xiaoyuan Xi, Mingming Meng, Zeshuai Wang, Elin Axelsson, Hang Ye, Chunjiao Xia, Weibo Xie, Jialing Yao, Yang Zhu, Peitao Lv, , Jing Li
The paper shows that the endosperm supplies cell-wall-loosening proteins to the maternal seed coat, enabling maternal cell elongation and seed growth through a regulated secretory program.
bioRxiv · Oct 29, 2026 · PreprintPlant Biology