首页 | 本学科首页   官方微博 | 高级检索  
   检索      

植物表观遗传修饰与病原菌胁迫应答研究进展
引用本文:潘丽娜,王振英.植物表观遗传修饰与病原菌胁迫应答研究进展[J].西北植物学报,2013,33(1):210-214.
作者姓名:潘丽娜  王振英
作者单位:天津师范大学生命科学学院,天津,300387
基金项目:国家自然科学基金(31071671);天津师范大学博士基金(52XB1005)
摘    要:真核生物基因表达受到染色质结构的调控,组蛋白与DNA的共价修饰构成表观遗传标签,并在植物胁迫应答如防御病原菌侵染过程中起重要作用.病原菌侵染可引起基因组整体DNA甲基化模式变化及胁迫应答基因的位点特异性去甲基化,导致植物抗性基因表达上调或下调,并进一步调控植物对病原菌的胁迫应答;组蛋白去乙酰化酶HDAC通过茉莉酸途径增强植物对病原菌的胁迫应答;此外,染色质重塑复合物Swr1复合体通过识别DNA基元和组蛋白乙酰化修饰状态靶向基因启动子,负调控SA敏感基因.该文从DNA甲基化、组蛋白乙酰化、甲基化修饰,染色质重塑等方面着重阐述植物与病原菌互作过程中发生的主要事件的分子基础及其研究进展.

关 键 词:表观遗传修饰  病原菌  胁迫应答

Epigenetic Control in Plant Pathogen-Stress Response
PAN Lin,WANG Zhenying.Epigenetic Control in Plant Pathogen-Stress Response[J].Acta Botanica Boreali-Occidentalia Sinica,2013,33(1):210-214.
Authors:PAN Lin  WANG Zhenying
Institution:(College of Life Science,Tianjin Normal University,Tianjin 300387,China)
Abstract:The gene expression in eukaryotic is regulated by chromatin structure.Epigenetic markers (like DNA methylation and histone modification) play an important role in the defense responses of plant.For example,plant DNA methylation patterns can be altered by pathogen infection,and pathogen-induced locus-specific demethylation can influence the expression of defense genes.Histone deacetylases (HDACs) promote defense responses against pathogens depended on jasmonic acid (JA) pathway.Furthermore,the chromatin remodeling complexes Swr1 may be targeted to gene promoters by the recognition of histone acetylation patterns and DNA motifs,which inhibited the expression of salicylic acid (SA)-sensitive genes.In this review,we focused on the underlying mechanisms of plant-pathogen interaction and the latest advances of epigenetics,such as DNA methylation,histone acetylation,histone methylation and chromatin remodeling.
Keywords:epigenetic modification  pathogen  stress response
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《西北植物学报》浏览原始摘要信息
点击此处可从《西北植物学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号