During evolution, plants have developed sophisticated ways to cope with different biotic and abiotic stresses. Phytohormones and secondary metabolites are known to play pivotal roles in defence responses against invading pathogens. One of the key hormones involved in plant immunity is salicylic acid (SA), of which the role in plant defence is well established and documented. Plants produce an array of secondary metabolites categorized in different classes, with the phenylpropanoids as major players in plant immunity. Both SA and phenylpropanoids are needed for an effective immune response by the plant. To successfully infect the host, pathogens secrete proteins, called effectors, into the plant tissue to lower defence. Secreted effectors can interfere with several metabolic or signalling pathways in the host to facilitate infection. In this review, we will focus on the different strategies pathogens have developed to affect the levels of SA and phenylpropanoids to increase plant susceptibility.

中文翻译：

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牵线的病原体：操纵植物中水杨酸和苯丙烷生物合成的效应器

在进化过程中，植物已经开发出复杂的方法来应对不同的生物和非生物胁迫。众所周知，植物激素和次生代谢物在抵御入侵病原体的防御反应中起关键作用。与植物免疫有关的关键激素之一是水杨酸 (SA)，它在植物防御中的作用已得到充分证实和证明。植物产生一系列不同类别的次级代谢物，其中苯丙烷是植物免疫的主要参与者。SA 和苯丙素都是植物有效免疫反应所必需的。为了成功感染宿主，病原体会将称为效应物的蛋白质分泌到植物组织中以降低防御能力。分泌的效应物可以干扰宿主中的几种代谢或信号通路以促进感染。在本次审查中，