Zogli Prince, Libault Marc
Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK, USA.
Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK, USA.
Plant Sci. 2017 Oct;263:89-93. doi: 10.1016/j.plantsci.2017.07.008. Epub 2017 Jul 13.
Plants constantly interact with pathogenic and symbiotic microorganisms. Recent studies have revealed several regulatory mechanisms controlling these interactions. Among them, the plant defense system is activated not only in response to pathogenic, but also in response to symbiotic microbes. Interestingly, shortly after symbiotic microbial recognition, the plant defense system is suppressed to promote plant infection by symbionts. Research studies have demonstrated the influence of the plant epigenome in modulating both pathogenic and symbiotic plant-microbe interactions, thereby influencing plant survival, adaptation and evolution of the plant response to microbial infections. It is however unclear if plant pathogenic and symbiotic responses share similar epigenomic profiles or if epigenomic changes differentially regulate plant-microbe symbiosis and pathogenesis. In this mini-review, we provide an update of the current knowledge of epigenomic control on plant immune responses and symbiosis, with a special attention being paid to knowledge gap and potential strategies to fill-in the missing links.
植物不断与致病微生物和共生微生物相互作用。最近的研究揭示了几种控制这些相互作用的调节机制。其中，植物防御系统不仅在对致病微生物作出反应时被激活，而且在对共生微生物作出反应时也会被激活。有趣的是，在识别共生微生物后不久，植物防御系统就会受到抑制，以促进共生体对植物的感染。研究表明，植物表观基因组在调节植物与致病微生物和共生微生物的相互作用中都有影响，从而影响植物的生存、适应性以及植物对微生物感染反应的进化。然而，尚不清楚植物对致病微生物和共生微生物的反应是否共享相似的表观基因组图谱，或者表观基因组变化是否以不同方式调节植物与微生物的共生关系和发病机制。在这篇小型综述中，我们更新了关于表观基因组对植物免疫反应和共生关系控制的当前知识，特别关注知识空白以及填补缺失环节的潜在策略。
