Sun Yanbiao, Huang Dingquan, Chen Xu
1College of Life Science and Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou, Fujian China.
2Haixia Institute of Science and Technology, Horticultural Plant Biology and Metabolomics Center, Fujian Agriculture and Forestry University, Fuzhou, 350002 China.
Hortic Res. 2019 Apr 6;6:47. doi: 10.1038/s41438-019-0129-3. eCollection 2019.
Effective cell-to-cell communication allows plants to fine-tune their developmental processes in accordance with the prevailing environmental stimuli. Plasmodesmata (PD) are intercellular channels that span the plant cell wall and serve as cytoplasmic bridges to facilitate efficient exchange of signaling molecules between neighboring cells. The identification of PD-associated proteins and the subsequent elucidation of the regulation of PD structure have provided vital insights into the role of PD architecture in enforcing crucial cellular processes, including callose deposition, ER-Golgi-based secretion, cytoskeleton dynamics, membrane lipid raft organization, chloroplast metabolism, and cell wall formation. In this review, we summarize the emerging discoveries from recent studies that elucidated the regulatory mechanisms involved in PD biogenesis and the dynamics of PD opening-closure. Retrospectively, PD-mediated cell-to-cell communication has been implicated in diverse cellular and physiological processes that are fundamental for the development of horticultural plants. The potential application of PD biotechnological engineering represents a powerful approach for improving agronomic traits in horticultural crops in the future.
有效的细胞间通讯使植物能够根据当前的环境刺激来微调其发育过程。胞间连丝（PD）是跨越植物细胞壁的细胞间通道，充当细胞质桥，以促进相邻细胞之间信号分子的有效交换。对与PD相关的蛋白质的鉴定以及随后对PD结构调控的阐明，为PD结构在执行关键细胞过程中的作用提供了重要见解，这些关键细胞过程包括胼胝质沉积、基于内质网-高尔基体的分泌、细胞骨架动力学、膜脂筏组织、叶绿体代谢和细胞壁形成。在这篇综述中，我们总结了近期研究中有关阐明PD生物发生以及PD开闭动态所涉及的调控机制的新发现。回顾来看，PD介导的细胞间通讯已涉及多种对园艺植物发育至关重要的细胞和生理过程。PD生物技术工程的潜在应用代表了未来改善园艺作物农艺性状的一种有力方法。
