植物对盐胁迫响应的信号转导途径

植物通过调控复杂的信号网络来应对盐胁迫。近年来,随着植物基因工程技术的发展,对植物在盐胁迫下信号转导系统的研究取得了一定进展。本文以拟南芥为代表,对盐胁迫下参与调控植物耐盐生理响应的两大类主要信号转导途径——Ca2＋依赖型信号转导通路和丝裂原活化蛋白激酶（MAPK）级联反应途径的研究进展进行综述,主要介绍参与各信号转导通路的组件及诱发的耐盐生理响应等方面,并对该研究领域存在的问题及今后可能的研究方向进行展望。

Signal Transduction Pathways in Response to Salt Stress in Plants

Plants cope with salt stress through regulation of complex signal network.In recent years,much progress has been made in the research of signal transduction pathways in response to salt stress in plants with the development of plant genetic engineering.In this article,two types of signal transduction pathways modulating salt tolerance responses in plants are reviewed and discussed：Ca2＋-dependent signal transduction pathway and mitogen-activated protein kinase（MAPK）signal transduction pathway,represented by Arabidopsis,in which the components participated in the signal transduction pathways and the corresponding salt tolerance responses are introduced,and the problems remained are discussed,finally the possible research directions in this field are proposed.