Calcium-triggered apoplastic ROS bursts balance gravity and mechanical signals for soil navigation. - Kulich, Ivan; Vladimirtsev, Dmitrii; Randuch, Marek; Gao, Shiqiang; Citterico, Matteo; Konrad, Kai R.; Nagel, Georg; Wrzaczek, Michael; Cascaro, Léa; Vinet, Pauline; Durand, Pauline; Asnacios, Atef; et al. (Science, 2026)