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首页> 外文期刊>Journal of Experimental Botany >The interaction of plant biotic and abiotic stresses: from genes to the field.
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The interaction of plant biotic and abiotic stresses: from genes to the field.

机译：植物生物和非生物胁迫的相互作用：从基因到田间。

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摘要

Plant responses to different stresses are highly complex and involve changes at the transcriptome, cellular, and physiological levels. Recent evidence shows that plants respond to multiple stresses differently from how they do to individual stresses, activating a specific programme of gene expression relating to the exact environmental conditions encountered. Rather than being additive, the presence of an abiotic stress can have the effect of reducing or enhancing susceptibility to a biotic pest or pathogen, and vice versa. This interaction between biotic and abiotic stresses is orchestrated by hormone signalling pathways that may induce or antagonize one another, in particular that of abscisic acid. Specificity in multiple stress responses is further controlled by a range of molecular mechanisms that act together in a complex regulatory network. Transcription factors, kinase cascades, and reactive oxygen species are key components of this cross-talk, as are heat shock factors and small RNAs. This review aims to characterize the interaction between biotic and abiotic stress responses at a molecular level, focusing on regulatory mechanisms important to both pathways. Identifying master regulators that connect both biotic and abiotic stress response pathways is fundamental in providing opportunities for developing broad-spectrum stress-tolerant crop plants.
机译：植物对不同胁迫的反应非常复杂，涉及转录组，细胞和生理水平的变化。最近的证据表明，植物对多种胁迫的反应与其对单个胁迫的反应不同，从而激活了与所遇到的确切环境条件有关的特定基因表达程序。非生物胁迫的存在不是累加，而是具有减少或增强对生物害虫或病原体的敏感性的作用，反之亦然。生物和非生物胁迫之间的这种相互作用通过可能相互诱导或拮抗的激素信号传导途径来协调，特别是脱落酸。多种应激反应的特异性还受一系列在复杂调控网络中共同起作用的分子机制的控制。转录因子，激酶级联反应和活性氧是这种串扰的关键组成部分，热休克因子和小RNA也是如此。这篇综述的目的是在分子水平上表征生物和非生物应激反应之间的相互作用，重点关注对这两种途径都重要的调节机制。识别连接生物和非生物胁迫响应途径的主要调控因子是为开发广谱耐胁迫作物提供机会的基础。

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