Department of Plant Sciences, University of Geneva, 30 Quai Ernest Ansermet, 1211, Geneva, Switzerland.
Department of Plant Sciences, University of Geneva, 30 Quai Ernest Ansermet, 1211, Geneva, Switzerland.
Curr Opin Plant Biol. 2023 Aug;74:102376. doi: 10.1016/j.pbi.2023.102376. Epub 2023 May 12.
Plants require water and several essential nutrients for their development. The radial transport of nutrients from the soil to the root vasculature is achieved through a combination of three different pathways: apoplastic, symplastic, and transcellular. A common feature for these pathways is the requirement of carriers to transport nutrients across the plasma membrane. An efficient transport of nutrients across the root cell layers relies on a large number of carriers, each of them having their own substrate specificity, tissular and subcellular localization. Polarity is also emerging as a major feature allowing their function. Recent advances on radial transport of nutrients, especially carrier mediated nutrient transport will be discussed in this review, as well as the role of transporters as nutrient sensors.
植物的生长发育需要水和几种必需的营养物质。营养物质从土壤到根系脉管系统的径向运输是通过三种不同途径的结合来实现的：质外体途径、共质体途径和跨细胞途径。这些途径的一个共同特征是需要载体来穿过质膜运输营养物质。营养物质在根细胞层中的有效运输依赖于大量的载体，每个载体都有自己的底物特异性、组织和亚细胞定位。极性也作为一个主要特征出现，允许它们发挥功能。本综述将讨论营养物质的径向运输，特别是载体介导的营养物质运输方面的最新进展，以及转运蛋白作为营养物质传感器的作用。
