Department of Biological Sciences, Graduate School of Science, The University of Tokyo Tokyo, Japan.
Front Plant Sci. 2012 Aug 28;3:197. doi: 10.3389/fpls.2012.00197. eCollection 2012.
Membrane traffic plays crucial roles in diverse aspects of cellular and organelle functions in eukaryotic cells. Molecular machineries regulating each step of membrane traffic including the formation, tethering, and fusion of membrane carriers are largely conserved among various organisms, which suggests that the framework of membrane traffic is commonly shared among eukaryotic lineages. However, in addition to the common components, each organism has also acquired lineage-specific regulatory molecules that may be associated with the lineage-specific diversification of membrane trafficking events. In plants, comparative genomic analyses also indicate that some key machineries of membrane traffic are significantly and specifically diversified. In this review, we summarize recent progress regarding plant-unique regulatory mechanisms for membrane traffic, with a special focus on vesicle formation and fusion components in the post-Golgi trafficking pathway.
膜运输在真核细胞的细胞和细胞器功能的各个方面都起着至关重要的作用。调节膜运输各个步骤的分子机制，包括膜载体的形成、连接和融合，在各种生物体中都有很大的保守性，这表明膜运输的框架在真核生物谱系中是普遍共有的。然而，除了常见的成分外，每个生物体还获得了谱系特异性的调节分子，这些分子可能与膜运输事件的谱系特异性多样化有关。在植物中，比较基因组分析也表明，膜运输的一些关键机制显著而特异性地多样化了。在这篇综述中，我们总结了膜运输中植物特有的调控机制的最新进展，特别关注了高尔基后运输途径中的囊泡形成和融合成分。
