Satheesh Viswanathan, Tahir Ayesha, Li Jinkai, Lei Mingguang
Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 201602, China.
Department of Biosciences, COMSATS University Islamabad, Park Road, Islamabad, Pakistan.
Stress Biol. 2022 Mar 3;2(1):16. doi: 10.1007/s44154-022-00039-0.
Phosphorus (P) is obtained by plants as phosphate (Pi) from the soil and low Pi levels affects plant growth and development. Adaptation to low Pi condition entails sensing internal and external Pi levels and translating those signals to molecular and morphophysiological changes in the plant. In this review, we present findings related to local and systemin Pi sensing with focus the molecular mechanisms behind root system architectural changes and the impact of hormones and epigenetic mechanisms affecting those changes. We also present some of the recent advances in the Pi sensing and signaling mechanisms focusing on inositol pyrophosphate InsP and its interaction with SPX domain proteins to regulate the activity of the central regulator of the Pi starvation response, PHR.
植物从土壤中以磷酸盐（Pi）的形式获取磷（P），低磷水平会影响植物的生长和发育。适应低磷条件需要感知内部和外部的磷水平，并将这些信号转化为植物的分子和形态生理变化。在本综述中，我们介绍了与局部和系统性磷感知相关的研究结果，重点关注根系结构变化背后的分子机制以及影响这些变化的激素和表观遗传机制的作用。我们还介绍了磷感知和信号传导机制的一些最新进展，重点关注肌醇焦磷酸InsP及其与SPX结构域蛋白的相互作用，以调节磷饥饿反应的中央调节因子PHR的活性。
