植物离子组学: 植物营养研究的新方向

离子组是指有机体内所有离子的总和，包括所有的金属、类金属和非金属。现代高通量的元素分析手段(如ICP-MS/OES)的出现，使得同时定量分析多个元素的含量成为可能。植物离子组学正是利用这一高通量的分析手段，在全基因组的规模上对植物体内的离子组进行分析和对比研究，从而系统地研究揭示植物体内控制离子平衡的遗传网络与分子机制。近年来，该研究领域发展迅速，并广泛地应用于植物功能基因组研究等方面，成为植物营养研究发展的一个热点领域。本文从离子组及离子组学的概念、 离子组学的技术平台、 离子组学研究的技术路线、信息管理及其应用等方面进行综述，并对这一新兴研究领域进行了展望。

Plant inomics: A new field in plant nutrition

The ionome was defined as total of all ions including all the metals, metalloids, and nonmetals present in an organism. The development of high-throughput analytical technology such as ICP-MS/OES makes it possible for the quantitative and simultaneous measurement of the elemental composition in plants. Based on this technology, ionomics was developed to illuminate systematically the genetic network and molecular mechanism of plant ion homeostasis by analyzing and comparing genomic-scale ionome. Since the rapid progress in recent years, ionomics was widely used in functional genomic research, etc, and becomes a hotspot field in plant nutrition. This paper makes a brief review on plant ionomics from the following aspects: the concept of ionome and ionomics, technology platform, methodology, information management of ionomics and its applications. Moreover, this paper put forward some questions and prospects in current study.