Mott G Adam, Middleton Maggie A, Desveaux Darrell, Guttman David S
Department of Cell & Systems Biology, University of Toronto, Toronto, ON Canada.
Centre for the Analysis of Genome Evolution & Function, University of Toronto, Toronto, ON Canada.
Front Plant Sci. 2014 Nov 28;5:677. doi: 10.3389/fpls.2014.00677. eCollection 2014.
Plants reside within an environment rich in potential pathogens. Survival in the presence of such threats requires both effective perception of, and appropriate responses to, pathogenic attack. While plants lack an adaptive immune system, they have a highly developed and responsive innate immune system able to detect and inhibit the growth of the vast majority of potential pathogens. Many of the critical interactions that characterize the relationship between plants and pathogens are played out in the intercellular apoplastic space. The initial perception of pathogen invasion is often achieved through specific plant receptor-like kinases that recognize conserved molecular patterns presented by the pathogen or respond to the molecular debris caused by cellular damage. The perception of either microbial or damage signals by these receptors initiates a response that includes the production of peptides and small molecules to enhance cellular integrity and inhibit pathogen growth. In this review, we discuss the roles of apoplastic peptides and small molecules in modulating plant-pathogen interactions.
植物生长在一个充满潜在病原体的环境中。在这种威胁下生存既需要对病原体攻击有有效的感知，也需要做出适当的反应。虽然植物缺乏适应性免疫系统，但它们拥有高度发达且反应灵敏的先天免疫系统，能够检测并抑制绝大多数潜在病原体的生长。植物与病原体关系的许多关键相互作用都发生在细胞间的质外体空间。病原体入侵的最初感知通常是通过特定的植物类受体激酶实现的，这些激酶能够识别病原体呈现的保守分子模式或对细胞损伤产生的分子碎片做出反应。这些受体对微生物或损伤信号的感知会引发一系列反应，包括产生肽和小分子以增强细胞完整性并抑制病原体生长。在这篇综述中，我们讨论了质外体肽和小分子在调节植物与病原体相互作用中的作用。
