Plasmodesmata traverse cell walls, generating connections between neighboring cells. They allow intercellular movement of molecules such as transcription factors, hormones, and sugars, and thus create a symplasmic continuity within a tissue. One important factor that determines plasmodesmal permeability is their aperture, which is regulated during developmental and physiological processes. Regulation of aperture has been shown to affect developmental events such as vascular differentiation in the root, initiation of lateral roots, or transition to flowering. Extensive research has unraveled molecular factors involved in the regulation of plasmodesmal permeability. Nevertheless, many plant developmental processes appear to involve feedbacks mediated by mechanical forces, raising the question of whether mechanical forces and plasmodesmal permeability affect each other. Here, we review experimental data on how one of these forces, turgor pressure, and plasmodesmal permeability may mutually influence each other during plant development, and we discuss the questions raised by these data. Addressing such questions will improve our knowledge of how cellular patterns emerge during development, shedding light on the evolution of complex multicellular plants.

中文翻译：

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植物发育过程中，膨压与胞浆菌之间的相互作用。

疟原虫横穿细胞壁，在相邻细胞之间产生连接。它们使诸如转录因子，激素和糖之类的分子在细胞间移动，从而在组织内产生对称连续性。决定质膜通透性的一个重要因素是其孔径，该孔径在发育和生理过程中受到调节。孔径的调节已显示会影响发育事件，例如根中的血管分化，侧根的起始或开花。广泛的研究揭示了与胞浆渗透性调节有关的分子因素。不过，许多植物的发育过程似乎都涉及机械力所介导的反馈，提出了机械力和胞膜通透性是否相互影响的问题。在这里，我们回顾了有关这些力，膨胀压力和等离子通透性在植物发育过程中如何相互影响的实验数据，并讨论了这些数据提出的问题。解决这些问题将提高我们对细胞模式在发育过程中如何出现的了解，从而阐明复杂的多细胞植物的进化过程。