Leibniz-Institute of Plant Biochemistry, Halle (Saale), Germany.
Curr Opin Plant Biol. 2011 Jun;14(3):303-9. doi: 10.1016/j.pbi.2011.04.007. Epub 2011 May 14.
Phosphate (Pi) and its anhydrides constitute major nodes in metabolism. Thus, plant performance depends directly on Pi nutrition. Inadequate Pi availability in the rhizosphere is a common challenge to plants, which activate metabolic and developmental responses to maximize Pi usage and acquisition. The sensory mechanisms that monitor environmental Pi and transmit the nutritional signal to adjust root development have increasingly come into focus. Recent transcriptomic analyses and genetic approaches have highlighted complex antagonistic interactions between external Pi and Fe bioavailability and have implicated the stem cell niche as a target of Pi sensing to regulate root meristem activity.
磷酸盐（Pi）及其酐构成代谢的主要节点。因此，植物的性能直接取决于 Pi 营养。根际中 Pi 的供应不足是植物面临的一个常见挑战，它们会激活代谢和发育反应，以最大限度地利用和获取 Pi。监测环境 Pi 并将营养信号传递到调整根系发育的感应机制越来越受到关注。最近的转录组分析和遗传方法强调了外部 Pi 和 Fe 生物利用度之间复杂的拮抗相互作用，并暗示干细胞生态位是 Pi 感应的靶标，以调节根分生组织的活性。
