Plant Biochemistry & Molecular Biology Group, Department of Plant Physiology, RWTH Aachen University, D-52056 Aachen, Germany.
Trends Plant Sci. 2011 Oct;16(10):524-31. doi: 10.1016/j.tplants.2011.06.004. Epub 2011 Jul 21.
Plants can be primed for more rapid and robust activation of defence to biotic or abiotic stress. Priming follows perception of molecular patterns of microbes or plants, recognition of pathogen-derived effectors or colonisation by beneficial microbes. However the process can also be induced by treatment with some natural or synthetic compounds and wounding. The primed mobilization of defence is often associated with development of immunity and stress tolerance. Although the phenomenon has been known for decades, the molecular basis of priming is poorly understood. Here, I summarize recent progress made in unravelling molecular aspects of defence priming that is the accumulation of dormant mitogen-activated protein kinases, chromatin modifications and alterations of primary metabolism.
植物可以被预先处理，以更迅速和更强韧地激活对生物或非生物胁迫的防御。预刺激作用是在感知微生物或植物的分子模式、识别病原体衍生的效应子或有益微生物的定植之后发生的。然而，该过程也可以通过用一些天然或合成化合物以及创伤处理来诱导。防御的预刺激动员通常与免疫和应激耐受性的发展相关。尽管这种现象已经存在了几十年，但预刺激的分子基础仍知之甚少。在这里，我总结了在揭示防御预刺激的分子方面的最新进展，这些进展包括休眠丝裂原活化蛋白激酶的积累、染色质修饰和初级代谢物的改变。
