Phosphorus (P) is an essential element for plant growth and development. Vacuoles play a fundamental role in the storage and remobilization of P in plants, while our understanding of the evolutionary mechanisms of creating and reusing P stores are limited. Besides, we also know very little about the coordination of intercellular P translocation, neither the inorganic phosphate (Pi) signaling nor the Pi transport patterns. Here we summarize recent advances in understanding the core elements involved in cellular and/or subcellular P homeostasis and signaling in unicellular green algae and multicellular land plants. We also propose further work that might help to uncover the high-resolution intracellular and intercellular landscape of Pi distribution and signaling in plants.

中文翻译：

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单细胞绿藻和多细胞陆生植物中细胞内/细胞间磷酸盐转运和信号传导的见解

磷（P）是植物生长发育的必需元素。液泡在植物中磷的储存和再动员中发挥着重要作用，而我们对创造和再利用磷储存的进化机制的理解是有限的。此外，我们对细胞间 P 易位的协调也知之甚少，无论是无机磷酸盐 (Pi) 信号还是 Pi 转运模式。在这里，我们总结了在理解涉及单细胞绿藻和多细胞陆生植物中细胞和/或亚细胞 P 稳态和信号传导的核心要素方面的最新进展。我们还提出了可能有助于揭示植物中 Pi 分布和信号传导的高分辨率细胞内和细胞间景观的进一步工作。