Guo Ming-xin, Zheng Ling, Zhao Xu-sheng
College of Life Science, Luoyang Normal University, Luoyang 471000, China.
Yi Chuan. 2017 May 20;39(5):388-395. doi: 10.16288/j.yczz.16-411.
Iron is essential for growth and development of rice, which is able to take up Fe-phytosiderophore, Fe-nicotianamine and free Fe. Researchers have uncovered key molecular components including transporters, enzymes, and chelators involved in iron uptake and translocation, as well as factors regulating the expression of these genes in rice. Manipulation of these molecular components has produced transgenic rice with enhanced tolerance to alkaline stress on calcareous soils with low-Fe availability due to high soil pH. In this review, we mainly summarize the molecular mechanisms of iron uptake, translocation, and regulation in rice, and discuss some perspectives of this field.
铁对于水稻的生长和发育至关重要，水稻能够吸收铁-植物铁载体、铁-烟酰胺和游离铁。研究人员已经发现了参与铁吸收和转运的关键分子成分，包括转运蛋白、酶和螯合剂，以及调节水稻中这些基因表达的因子。通过对这些分子成分的操控，已经培育出了转基因水稻，这些水稻在因土壤pH值高而铁有效性低的石灰性土壤上对碱性胁迫具有更强的耐受性。在这篇综述中，我们主要总结了水稻中铁吸收、转运和调控的分子机制，并讨论了该领域的一些研究前景。
