This work was funded by the Natural Science Foundation of Jiangsu Province—Distinguished Youth Foundation (BK20200022), the National Natural Science Foundation of China (no. 31871843), Laboratory of Lingnan Modern Agriculture Project (NZ2021034), the Jiangsu Agricultural Science and Technology Innovation Project (CX(21)3040), the Fundamental Research Funds for the Central Universities, China (KJJQ202102), and a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions. The authors thank Q. Chen at the Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, for granting access to the facilities for rheometry. Cryo-TEM characterization was conducted at the Cryo-Electron Microscopy Center, Zhejiang University, with assistance from L. Wu. Cryo-SEM characterization was conducted at the Biological Teaching Experiment Center, Nanjing Agricultural University.