In the process of plant-pathogens interaction,a series of signal transduction and defense system are excited in plant,which triggers rapid and effective defense responses.After activation of defense responses,will cause synthesizing and accumulating of a series of exogenous signaling molecules.The plant hormones salicylic acid (SA),jasmonic acid (JA) and ethylene (ET) are recognized as key players in the regulation of the signaling pathways involved.In this review,the recent research advances on the interaction among the three different signaling pathways are summarized.It also presented the function of several key regulatory proteins such as NPR1,EDS1,MPK4,which are known to play important role in SA and JA/ET signaling cross talk and coordinating their complex relationships.In addition,the prospect of future work is discussed in the review.%植物与病原物相互作用的过程中,植物体内发生一系列的信号传递,并激发植物的防御体系,使植物产生抗病性反应.目前已经明确植物激素如水杨酸、茉莉酸和乙烯在调控抗病和防卫信号传导网络中扮演了重要的角色.该文综述了近年来国内外有关3种信号途径间相互作用方面的研究进展,同时阐述了NPR1、EDS1、MPK4等关键调控蛋白在协调这些复杂关系中的作用,并对今后的研究前景进行了展望.
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