SERKs作为SYR1的共同受体,可以在番茄中触发系统介导的防御反应
Hyewon Cho1, Dain Seo1, Minsoo Kim1
1Department of Life Sciences, Korea University, Seoul, 02841, Korea.
Journal of integrative plant biology
|July 23, 2024
概括
植物激素系统因通过与SERK共同受体形成复合体来触发防御反应. 这种相互作用激活了信号通路,增强了植物对昆虫和真菌的抵抗力.
科学领域:
- 植物分子生物学 植物分子生物学
- 植物免疫力 植物免疫力
- 信号传导传导是指信号的传导.
背景情况:
- 系统是一种植物类激素,介导伤口防御.
- 系统因被LRR-RLK受体SYR1.1.感知到.
- 在SYR1下游的细胞内信号传递机制尚不清楚.
研究的目的:
- 阐明SERK家族受体在系统信号传导中的作用.
- 为了识别参与SYR1-介导防御通路的组件.
- 了解系统感知如何导致植物防御激活.
主要方法:
- 化学遗传与工程接收器的化学遗传学.
- 对受体-连接体相互作用 (SYR1-SERK) 的分析.
- 酸化试验的测定方法
- 接受器裂变测定试验
- 对Slserk突变体的遗传分析
主要成果:
- SERK家族的LRR-RLKs作为西红中SYR1的共同受体.
- 在系统感知时,SYR1与SlSERKs (SlSERK1,SlSERK3A,SlSERK3B) 相结合.
- 形成SYR1-SERK复合体导致相互转酸化和SYR1激活.
- 激活的SYR1-SERK复合体酸化TPK1b,这是系统反应的积极调节者.
- 根据SYR1的关联,SLSERKs被Pseudomonas注射器效应器HopB1分裂.
- 对于系统中介防御响应来说,SLSERK是必不可少的.
结论:
- 在系统内信号转导中,SERK蛋白质作为SYR1的必不可少的共受体起作用.
- 该SYR1-SERK复合体激活下游信号,包括TPK1b酸化.
- SERK蛋白质在调解植物对草食昆虫的防御方面发挥着至关重要的作用.
更多相关视频
11:50Bacterial Leaf Infiltration Assay for Fine Characterization of Plant Defense Responses using the Arabidopsis thaliana-Pseudomonas syringae Pathosystem
Published on: October 1, 2015
21.8K
09:05Tomato Root Transformation Followed by Inoculation with Ralstonia Solanacearum for Straightforward Genetic Analysis of Bacterial Wilt Disease
Published on: March 11, 2020
11.6K
相关概念视频
Cell Signaling in Plants
5.6K
Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
5.6K
Defenses Against Pathogens and Herbivores
23.5K
Plants present a rich source of nutrients for many organisms, making it a target for herbivores and infectious agents. Plants, though lacking a proper immune system, have developed an array of constitutive and inducible defenses to fend off these attacks.
23.5K
Receptor Tyrosine Kinases
12.6K
Receptor tyrosine kinases or RTKs are membrane-bound receptors that phosphorylate specific tyrosine on protein substrates. RTKs regulate cellular growth, differentiation, survival, and migration. They contain an extracellular ligand binding domain, a transmembrane domain, and a cytosolic tail with intrinsic kinase activity. Several extracellular signaling molecules activate RTKs in one or more ways and relay the signal downstream. Ligands such as platelet-derived growth factor (PDGF) or...
12.6K
