Silicon (Si) is a metalloid which is gaining worldwide attention of plant scientists due to its ameliorating impact on plants' growth and development. The beneficial response of Si is observed predominantly under numerous abiotic and biotic stress conditions. However, under favorable conditions, most of the plant can grow without it. Therefore, Si has yet not been fully accepted as essential element rather it is being considered as quasi-essential for plants' growth. Si is also known to enhance resilience in plants by reducing the plant's stress. Besides its second most abundance on the earth crust, most of the soils lack plant available form of Si i.e. silicic acid. In this regard, understanding the role of Si in plant metabolism, its uptake from roots and transport to aerial tissues along with its ionomics and proteomics under different circumstances is of great concern. Plants have evolved a well-optimized Si-transport system including various transporter proteins like Low silicon1 (Lsi1), Low silicon2 (Lsi2), Low silicon3 (Lsi3) and Low silicon6 (Lsi6) at specific sub-cellular locations along with the expression profiling that creates precisely coordinated network among these transporters, which also facilitate uptake and accumulation of Si. Though, an ample amount of information is available pertinent to the solute specificity, active sites, transcriptional and post-transcriptional regulation of these transporter genes. Similarly, the information regarding transporters involved in Si accumulation in different organelles is also available particularly in silica cells occurred in poales. But in this review, we have attempted to compile studies related to plants vis à vis Si, its role in abiotic and biotic stress, its uptake in various parts of plants via different types of Si-transporters, expression pattern, localization and the solute specificity. Besides these, this review will also provide the compiled knowledge about the genetic variation among crop plants vis à vis enhanced Si uptake and related benefits.

硅（Si）是一种准金属，由于其对植物生长和发育的影响得到改善，因此受到了植物科学家的广泛关注。Si的有益反应主要是在许多非生物和生物胁迫条件下观察到的。但是，在有利条件下，大多数植物都可以在没有它的情况下生长。因此，Si尚未被完全接受为必需元素，而是被认为是植物生长的准必需元素。硅还可以通过减轻植物的压力来增强植物的复原力。除了其在地壳上的第二富裕度外，大多数土壤还缺乏可利用的硅形式的硅，即硅酸。在这方面，了解硅在植物代谢中的作用，在不同情况下，其从根部吸收和运输到气生组织以及其蛋白质组学和蛋白质组学都引起极大关注。植物已经进化出一种经过优化的Si转运系统，其中包括各种转运蛋白，例如低硅1（Lsi1），低硅2（Lsi2），低硅3（Lsi3）和低硅6（Lsi6）在特定的亚细胞位置以及表达谱分析在这些转运蛋白之间建立了精确协调的网络，这也促进了硅的吸收和积累。但是，有关这些转运蛋白基因的溶质特异性，活性位点，转录和转录后调控，有大量可用信息。类似地，关于在不同细胞器中硅积累中涉及的转运子的信息也可得到，特别是在大猩猩中发生的二氧化硅细胞中。但是，在这次审查中，我们试图与植物编译研究相一相Si，它在非生物和生物胁迫中的作用，通过不同类型的Si转运蛋白在植物各个部位的吸收，表达模式，定位和溶质特异性。除了这些，本综述还将提供有关作物植物间遗传变异与提高的硅吸收及相关益处的综合知识。