Antioxidant capacity and root K+ retention: regulation mechanisms of drought tolerance in sweetpotato - Chengkang Xue; Minfei Sheng; Jiayuan Zhu; Jinping He; Zhiyuan Pan; Zhaoxia Liao; Jian Sun; Yaoyao Wu; Yang Dong; Zongyun Li; Jingran Liu (Plant Cell Reports, 2025)