摘　要：盐胁迫影响植物生长发育，制约农作物安全生产。细胞内钠离子毒害是导致盐胁迫的主要因素之一，细胞内积累过多的钠离子会抑制光合作用及蛋白合成等一系列生理生化活动。因此，植物细胞内钠离子动态平衡对于维持植物正常生长发育至关重要。本文从盐胁迫对植物的危害、钠离子转运、信号传导等方面来阐述植物应答高盐胁迫的研究进展，以推动对植物盐胁迫响应机制的研究。
关键词：盐胁迫；植物；钠离子转运；信号传导；分子机制
中图分类号：Q946                             文献标志码：A                     DOI：10.3969/j.issn.1007-7146.2022.05.003

Abstract: Salt stress seriously affects plant growth and is a serious factor restricting the safe production of crops.  High salt can cause disturbance of ions in plants, and ultimately affect the development, growth and yield of plants. It is very important to understand and improve the salt resistance mechanism of crops to ensure the safe production of crops. In this paper, the harm of salt stress on plants, sodium ion transport, and the response mechanism of plants to salt stress were reviewed. The aim is to provide some theoretical basis for promoting the study of the responding mechanisms of salt stress in plants.
Key words: salt stress; plant; sodium ion transport; signal transduction; molecular mechanism
（Acta Laser Biology Sinica, 2022, 31(5): 398-403）