ABSTRACT Casparian strip (CS) is a lignified structure localized on the cell wall between adjacent root endodermal cells and functions as an apoplastic diffusion barrier in the root. The polarly localized, lignin-based CS is an excellent system for studying peptide signaling and position recognition. In this short review, we summarize advances in the past decade on the molecular mechanism governing CS development. In addition to the multi-protein framework underlying the CS membrane domain, we discuss recently observed participation of cell wall located cuproproteins in CS formation. These new discoveries shed light on a potential CS wall domain that coordinates with the membrane domain to provide bidirectional positional information for guiding precise CS development.

中文翻译：

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铜蛋白是用于制作 Casparian 条带的多蛋白框架的一部分吗？

摘要 Casparian strip (CS) 是一种木质化结构，位于相邻根内胚层细胞之间的细胞壁上，作为根中的质外体扩散屏障。极性定位的、基于木质素的 CS 是研究肽信号传导和位置识别的优秀系统。在这篇简短的评论中，我们总结了过去十年在控制 CS 发展的分子机制方面的进展。除了 CS 膜域下的多蛋白框架外，我们还讨论了最近观察到的细胞壁铜蛋白参与 CS 形成。这些新发现揭示了潜在的 CS 壁域，该域与膜域协调，为指导精确的 CS 开发提供双向位置信息。