植物核质运输与其先天免疫研究进展  

Plant Nucleocytoplasmic Transport and Innate Immunity

作　　者：郭晓雨[1,2] 刘俊[2] 汪天[1] 

机构地区：[1]安徽农业大学园艺学院,合肥230036 [2]中国科学院微生物研究所植物基因组学国家重点实验室,北京100101

出　　处：《西北植物学报》2015年第7期1488-1496,共9页Acta Botanica Boreali-Occidentalia Sinica

基　　金：安徽农业大学稳定和引进人才科研项目(wd2006-2)资助

摘　　要：植物为了抵御病原菌的侵染而进化出一套独特的先天免疫系统,它主要通过定位在细胞膜或细胞质上的受体介导并激活下游抗病基因表达而实现,但在这些信号传递过程中,细胞质的信号向核传递需要核质运输相关元件的参与。虽然目前只有个别核质运输的信号元件被证实参与了植物的先天免疫信号传递过程,但越来越多的研究表明核质运输是连接抗病基因表达和信号识别受体的一个主要方式。研究发现,病原菌的效应因子也可以利用植物核质运输机制侵入到宿主细胞核内,调控敏感基因的表达,干扰植物的免疫反应。该文对近年来国内外有关植物的核质运输机制、各层次免疫反应需要核质运输作用、核质运输相关蛋白在免疫反应中的作用等方面对核质运输参与植物先天免疫反应研究的研究进展进行综述,并指出该领域未来研究的主要内容和方向。In order to counteract the invasion of pathogenic microorganisms,plants have evolved a set of immune system to recognize the pathogens and mount defense.The plasma membrane-tethered pathogen recognition receptors （PRRs） and the cytoplasmic NB-LRR immune receptors are responsible for the recognition of the conserved features of pathogens.Following the recognition,the transportation of signals between nucleus and cytoplasm requires the presence of nucleocytoplasmic transport proteins to help the immune proteins and/or their associated signal carries to pass through the nuclear pores.Notably,some types of pathogen effectors,such as transcription activator-like （TAL） effectors,have also been found utilizing the host nucleocytoplasmic transport system to enter nucleus and to activate the expression of host susceptibility genes.In this review,we summarized the recent progresses of nucleocytoplasmic transport in plant innate immunity,including the mechanism of it,the require of plant immunity to it and some protein related to it in plant immunity,to demonstrate its importance in disease resistance.

关 键 词：核质运输 植物免疫 信号传递 抗病性 

分 类 号：Q945.8[农业科学—植物病理学] Q257[生物学—植物学]