Deinlein Ulrich, Stephan Aaron B, Horie Tomoaki, Luo Wei, Xu Guohua, Schroeder Julian I
Division of Biological Sciences, Food and Fuel for the 21st Century Center, University of California San Diego, La Jolla, CA 92093-0116, USA.
Division of Applied Biology, Faculty of Textile Science and Technology, Shinshu University, Nagano 386-8567, Japan.
Trends Plant Sci. 2014 Jun;19(6):371-9. doi: 10.1016/j.tplants.2014.02.001. Epub 2014 Mar 14.
Crop performance is severely affected by high salt concentrations in soils. To engineer more salt-tolerant plants it is crucial to unravel the key components of the plant salt-tolerance network. Here we review our understanding of the core salt-tolerance mechanisms in plants. Recent studies have shown that stress sensing and signaling components can play important roles in regulating the plant salinity stress response. We also review key Na+ transport and detoxification pathways and the impact of epigenetic chromatin modifications on salinity tolerance. In addition, we discuss the progress that has been made towards engineering salt tolerance in crops, including marker-assisted selection and gene stacking techniques. We also identify key open questions that remain to be addressed in the future.
作物生长性能受到土壤中高盐浓度的严重影响。为培育更耐盐的植物,解析植物耐盐网络的关键组成部分至关重要。在此,我们综述对植物核心耐盐机制的理解。近期研究表明,胁迫感知和信号传导组件在调节植物盐胁迫反应中可发挥重要作用。我们还综述关键的钠离子运输和解毒途径以及表观遗传染色质修饰对耐盐性的影响。此外,我们讨论了在作物耐盐性工程方面取得的进展,包括标记辅助选择和基因叠加技术。我们还确定了未来有待解决的关键开放性问题。