Department of Plant Biology, College of Biological Sciences, University of California, Davis, CA 95616, USA.
Department of Plant Biology, College of Biological Sciences, University of California, Davis, CA 95616, USA.
Curr Opin Biotechnol. 2018 Feb;49:1-9. doi: 10.1016/j.copbio.2017.07.005. Epub 2017 Jul 18.
Phosphorus (P) is a macronutrient essential for plant growth, therefore, soil P level is critical to crop yield potential in agriculture. As Pi levels limit crop yield under many soil conditions, it is crucial to understand the mechanisms by which plants adapt to low-phosphate (Pi) soil conditions and interact with their soil microbiome to improve crop P use efficiency, in order to ensure global food security. Recent advances have been made towards achieving this goal through advancing our understanding of the plant's response to limiting Pi conditions to maintain P homeostasis. In this review, we assess advances made in local and systemic Pi sensing and signaling, and in the molecular events for Pi absorption, redistribution and plant-symbiont interactions. These findings offer important avenues for bio-engineering of agricultural crops with traits for enhanced Pi acquisition and utilization.
磷（P）是植物生长所必需的大量营养素，因此，土壤 P 水平对农业作物的产量潜力至关重要。由于在许多土壤条件下 Pi 水平限制了作物的产量，因此了解植物如何适应低磷（Pi）土壤条件并与土壤微生物组相互作用以提高作物磷利用效率至关重要，以确保全球粮食安全。最近，通过深入了解植物对限制 Pi 条件的反应以维持 P 稳态，在实现这一目标方面取得了进展。在这篇综述中，我们评估了在局部和系统 Pi 感应和信号转导以及 Pi 吸收、再分配和植物共生体相互作用的分子事件方面的进展。这些发现为具有增强的 Pi 获取和利用特性的农业作物的生物工程提供了重要途径。
