Structural Plant Biology Laboratory, Department of Botany and Plant Biology, University of Geneva, 30 Quai E. Ansermet, Geneva, 1211, Switzerland.
New Phytol. 2020 Jan;225(2):637-652. doi: 10.1111/nph.16129. Epub 2019 Sep 20.
Inorganic polyphosphates (polyPs) and inositol pyrophosphates (PP-InsPs) form important stores of inorganic phosphate and can act as energy metabolites and signaling molecules. Here we review our current understanding of polyP and inositol phosphate (InsP) metabolism and physiology in plants. We outline methods for polyP and InsP detection, discuss the known plant enzymes involved in their synthesis and breakdown, and summarize the potential physiological and signaling functions for these enigmatic molecules in plants.
无机多聚磷酸盐（polyPs）和肌醇六磷酸（PP-InsPs）是无机磷酸盐的重要储存库，可作为能量代谢物和信号分子发挥作用。本文综述了我们目前对植物中多聚磷酸盐和肌醇磷酸盐（InsP）代谢和生理学的理解。我们概述了检测 polyP 和 InsP 的方法，讨论了参与其合成和分解的已知植物酶，并总结了这些神秘分子在植物中的潜在生理和信号功能。
