Jasmonic Acid (JA) in Plant Immune Response: Unravelling Complex Molecular Mechanisms and Networking of Defence Signalling Against Pathogens
茉莉酸在植物免疫反应中的作用：揭示病原体防御信号的复杂分子机制和网络
- 关键词：
- 来源：
- Journal of Plant Growth Regulation 期刊
- 类型：
- 学术文献
- 语种：
- 英语
- 原文发布日期：
- 2024-05-09
- 摘要：
- Jasmonic acid (JA) and its derived compound ‘jasmonates’ are a class of potent phytohormones that play pivotal roles in plants’ physio-biochemical processes during growth and development. With the onset of the 21st century, concurrent climate changes all over the world have drastically affected plants’ adaptability and survivability against (a) biotic stressors. Such climatic instabilities trigger a variety of pathogens (mainly fungi, bacteria, and viruses) to create disease pressure by affecting plant health and the immune barrier. JA is crucial for plant immune response through their biosynthetic pathways, involvement in signalling cascades and corresponding cross-talk with other phytohormones like salicylic acid (SA), ethylene (ET) and abscisic acid (ABA). In this perspective, the endogenous role of JA lies behind the process of cellular central dogma at the molecular level. The genes and gene products, like transcription factors (TFs) associated with JA biosynthesis and signalling, impart some sort of regulation on plant immune response by activating systemic and localized signalling, pathogenesis-related (PR) genes and proteins, phytoalexins, modulating pathogen effectors, and interacting with host proteins. In addition, the external application of JA can also significantly lead to stimulating the immune circuit of plants through gene expression and protein interaction. In this way, JA can boost a plant’s immune system through systemic acquired resistance (SAR) and induced systemic resistance (ISR). This could be an idea to understand the hormonal interplay in plant immune response to various types of pathogens and provide the resistance mechanism against yield and quality losses.
- 所属专题：
- 60
