Jasmonate-triggered plant immunity.

Jasmonate-triggered plant immunity.
复制标题

DOI:
10.1007/s10886-014-0468-3
复制
发表时间:
2014-07
影响因子:
2.3
通讯作者:
Howe, Gregg A.
Howe, Gregg A.
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Campos, Marcelo L.;Kang, Jin-Ho;Howe, Gregg A.

文献摘要

参考文献

被引文献

相似文献

植物激素茉莉酸盐(JA)直接控制化学防御化合物的产生,这些化合物赋予了对一系列植物相关生物(从微生物病原体到脊椎动物食草动物)的抗性。JA触发免疫(JATI)的潜在机制可以被定义为一个多阶段信号转导级联,涉及:i)模式识别受体(PRRs)将危险信号的感知与生物活性JA的快速合成结合起来;ii)一个进化上保守的JA信号模块,将JA水平的波动与转录抑制蛋白丰度的变化联系起来;iii)转录因子的激活(去抑制),这些转录因子协调了无数化学和形态防御性状的表达。多个负反馈回路协同作用,抑制防御反应的持续时间和幅度,可能是为了减轻JATI的潜在适应度成本。各种植物和非植物来源的信号在核心JA模块上的收敛表明,JATI是对感知到的危险的一般反应。然而,JATI的模块化结构可以通过PRRs(输入)和防御特征(输出)的进化创新来适应攻击者特定的防御反应。JATI作为一种防御策略的有效性被强调为其塑造植物攻击者自然种群的能力,以及植物相关生物破坏或以其他方式操纵JA信号的倾向。作为整合来自环境的信息线索的细胞中枢和病原体效应物的共同目标,核心JA模块为理解植物界免疫系统网络和化学多样性进化提供了焦点。
The plant hormone jasmonate (JA) exerts direct control over the production of chemical defense compounds that confer resistance to a remarkable spectrum of plant-associated organisms, ranging from microbial pathogens to vertebrate herbivores. The underlying mechanism of JA-triggered immunity (JATI) can be conceptualized as a multi-stage signal transduction cascade involving: i) pattern recognition receptors (PRRs) that couple the perception of danger signals to rapid synthesis of bioactive JA; ii) an evolutionarily conserved JA signaling module that links fluctuating JA levels to changes in the abundance of transcriptional repressor proteins; and iii) activation (de-repression) of transcription factors that orchestrate the expression of myriad chemical and morphological defense traits. Multiple negative feedback loops act in concert to restrain the duration and amplitude of defense responses, presumably to mitigate potential fitness costs of JATI. The convergence of diverse plant- and non-plant-derived signals on the core JA module indicates that JATI is a general response to perceived danger. However, the modular structure of JATI may accommodate attacker-specific defense responses through evolutionary innovation of PRRs (inputs) and defense traits (outputs). The efficacy of JATI as a defense strategy is highlighted by its capacity to shape natural populations of plant attackers, as well as the propensity of plant-associated organisms to subvert or otherwise manipulate JA signaling. As both a cellular hub for integrating informational cues from the environment and a common target of pathogen effectors, the core JA module provides a focal point for understanding immune system networks and the evolution of chemical diversity in the plant kingdom.
DOI: 10.1073/pnas.95.14.8113
发表时间: 1998-07-07
影响因子: 11.1
作者:
Baldwin, IT
通讯作者: Baldwin, IT
DOI: 10.1007/s00442-011-2015-z
发表时间: 2011-11-01
期刊: OECOLOGIA
影响因子: 2.7
作者:
Bidart-Bouzat, M. Gabriela;Kliebenstein, Daniel
通讯作者: Kliebenstein, Daniel
DOI: 10.1111/j.1365-313x.2006.03002.x
发表时间: 2007-03-01
期刊: PLANT JOURNAL
影响因子: 7.2
作者:
Bonaventure, Gustavo;Gfeller, Aurelie;Farmer, Edward E.
通讯作者: Farmer, Edward E.
DOI: 10.1038/415977a
发表时间: 2002-02-28
期刊: NATURE
影响因子: 64.8
作者:
Asai, T;Tena, G;Sheen, J
通讯作者: Sheen, J
DOI: 10.1038/nature08794
发表时间: 2010-03-18
期刊: Nature
影响因子: 64.8
作者:
通讯作者: --