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首页> 外文期刊>Indian Journal of Agricultural Biochemistry >Long distance signaling during systemic acquired resistance.
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Long distance signaling during systemic acquired resistance.

机译：全身性获得性阻力期间的长距离信号传递。

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摘要

Systemic acquired resistance (SAR) is an inducible defense response triggered in response to a localized infection that confers whole-plant immunity against secondary infections. SAR is thought to involve generation of mobile signal(s) at the site of infection that, upon translocation to the distal tissues, activate broad-spectrum disease resistance. Several plant metabolites that fit the criteria defined for mobile signals have been identified. The SAR conferred by these structurally unrelated chemicals, including azelaic acid (AA), methylated derivative of salicylic acid (SA), dehydroabietinal, pipecolic acid and glycerol-3-phosphate (G3P), is dependent on SA. Many of these chemical SAR inducers require the lipid transfer proteins, DIR1 and AZI1, for their function in SAR. Thus, signaling induced by these diverse chemicals is likely to converge into a common pathway. For example recent findings show that AA functions upstream of G3P and confers SAR by inducing G3P biosynthesis. This review summarizes recent findings related to these mobile chemical inducers of SAR.
机译：系统获得性抗药性（SAR）是一种可诱导的防御反应，是针对局部感染而触发的，赋予整个植物抵抗继发感染的免疫力。 SAR被认为涉及在感染部位的移动信号的产生，其在转移到远端组织后激活广谱抗病性。已经确定了几种符合移动信号定义标准的植物代谢物。这些与结构无关的化学物质（包括壬二酸（AA），水杨酸的甲基化衍生物（SA），脱氢牛油酸，胡椒酸和3-磷酸甘油酯（G3P））赋予的SAR依赖于SA。这些化学合成孔径雷达诱导剂中的许多都需要脂质转移蛋白DIR1和AZI1才能发挥其在SAR中的功能。因此，由这些多种化学物质诱导的信号传导可能会汇聚成一条共同的途径。例如，最近的发现表明，AA在G3P的上游起作用，并通过诱导G3P的生物合成赋予SAR。这篇综述总结了与这些可移动的SAR化学诱导物有关的最新发现。

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