Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA.
Curr Opin Plant Biol. 2010 Dec;13(6):684-92. doi: 10.1016/j.pbi.2010.09.003. Epub 2010 Oct 9.
Plasmodesmata (PDs), tiny channels connecting neighboring plant cells, play big roles in the transport of metabolites, viral movement, cell fate specification and development. Many recent studies are opening our eyes to the composition and formation of PDs, as well as the function and regulation of trafficking through them. Both proteomic and genetic approaches have revealed the central importance of callose in modulating PD connectivity. Moreover, many new developmental regulators, including transcription factors as well as small RNAs (sRNAs), have been found to be mobile and essential for specifying cell fate and tissue patterning.
胞间连丝（PDs）是连接相邻植物细胞的微小通道，在代谢物运输、病毒运动、细胞命运特化和发育等方面发挥着重要作用。许多最近的研究使我们对 PD 的组成和形成以及通过它们的运输功能和调节有了更深入的了解。蛋白质组学和遗传学方法都揭示了胼胝质在调节 PD 连通性方面的核心重要性。此外，许多新的发育调节剂，包括转录因子和小 RNA（sRNAs），已被发现是可移动的，对于特化细胞命运和组织模式至关重要。
