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首页> 外文期刊>Trends in Plant Science >Cytokinins and plant immunity: old foes or new friends?
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Cytokinins and plant immunity: old foes or new friends?

机译:细胞分裂素与植物免疫力:是老对手还是新朋友?

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摘要

Cytokinins are plant growth promoting hormones involved in the specification of embryonic cells, maintenance of meristematic cells, shoot formation and development of vasculature. Cytokinins have also emerged as a major factor in plant-microbe interactions during nodule organogenesis and pathogenesis. Microbe-originated cytokinins confer abnormal hypersensitivity of cytokinins to plants, augmenting the sink activity of infected regions. However, recent findings have shed light on a distinct role of cytokinins in plant immune responses. Plant-borne cytokinins systemically induce resistance against pathogen infection. This resistance is orchestrated by endogenous cytokinin and salicylic acid signaling. Here, we discuss how plant- and pathogen-derived cytokinins inversely affect the plant defense response. In addition, we consider the molecular mechanisms underlying plant-derived cytokinin action in plant immunity.
机译:细胞分裂素是促进植物生长的激素,涉及胚胎细胞的规格,分生细胞的维持,芽的形成和脉管系统的发育。细胞分裂素也已成为根瘤器官发生和发病机理中植物与微生物相互作用的主要因素。微生物起源的细胞分裂素赋予细胞分裂素异常异常的植物敏感性,增加了感染区域的库活动。但是,最近的发现揭示了细胞分裂素在植物免疫应答中的独特作用。植物源性细胞分裂素系统性地诱导抵抗病原体感染。这种抗性通过内源性细胞分裂素和水杨酸信号传导来协调。在这里,我们讨论了植物和病原体产生的细胞分裂素如何反向影响植物防御反应。此外,我们考虑了植物免疫细胞中植物源性细胞分裂素作用的分子机制。

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