相关实验视频

Updated: May 6, 2026

Assaying Proteasomal Degradation in a Cell-free System in Plants

Assaying Proteasomal Degradation in a Cell-free System in Plants

Published on: March 27, 2014

环型乌比奎丁结合酶XBAT35.2通过促进FLS2蛋白积累来积极调节植物免疫力

Yi Zhang^1,2, Chaofeng Wang³, Bangjun Zhou^4,5

¹University of Nebraska-Lincoln, Lincoln, Nebraska, United States.

Molecular plant-microbe interactions : MPMI

|March 3, 2026

概括

植物免疫受体 FLS2 的作用.

科学领域:

植物免疫力植物免疫力
分子植物病理学分子植物病理学
细胞生物学细胞生物学

背景情况:

模式触发免疫 (PTI) 是一种关键的植物防御机制.
鞭毛蛋白传感2 (FLS2) 识别细菌鞭毛蛋白,对植物防御至关重要.
XBAT35是阿拉比多普西斯E3泛素联酶家族的一种,具有Ankyrin重复 (ANK) -RING域.

研究的目的:

为了研究阿拉比多普西斯 (Arabidopsis) 泛素酶XBAT35.2在FLS2介导的模式触发免疫 (PTI) 中的作用.
阐明XBAT35.2调节FLS2蛋白稳定性和植物防御反应的机制.

主要方法:

研究了XBAT35.2异型体在对Pseudomonas syringae pv.的植物免疫力中的功能. 番茄 DC3000. 番茄 DC3000. 番茄 DC3000. 番茄 DC3000. 番茄 DC3000. 番茄 DC3000 番茄番茄番茄番茄番茄番茄
分析了野生类型和突变类型的阿拉比多普西斯的FLS2蛋白积累和降解.
确定XBAT35.2局部化和与FLS2,BAK1和BIK1的相互作用,使用体内和体外测试.

主要成果:

通过增强FLS2蛋白稳定性,XBAT35.2积极调节FLS2介导的PTI.
过度表达XBAT35.2增加了FLS2水平,而xbat35无突变体显示了增强的FLS2降解.
XBAT35.2局限于血和Golgi,与FLS2和BAK1相互作用,并在flg22治疗时调节这些相互作用.

结论:

通过稳定FLS2受体,XBAT35.2在植物PTI中发挥着关键作用,可能没有直接的无处不在.
XBAT35.2促进了早期的FLS2介导免疫信号,有助于强大的植物防御细菌病原体.

更多相关视频

Pattern-Triggered Oxidative Burst and Seedling Growth Inhibition Assays in Arabidopsis thaliana

Pattern-Triggered Oxidative Burst and Seedling Growth Inhibition Assays in Arabidopsis thaliana

Published on: May 21, 2019

Functional Characterization of RING-Type E3 Ubiquitin Ligases In Vitro and In Planta

Functional Characterization of RING-Type E3 Ubiquitin Ligases In Vitro and In Planta

Published on: December 5, 2019

相关概念视频

Plant Cell Wall

Plant Cell Wall

The plant cell wall gives plant cells shape, support, and protection. As a cell matures, its cell wall specializes according to the cell type. For example, the parenchyma cells of leaves possess only a thin, primary cell wall.

Cell Signaling in Plants

Cell Signaling in Plants

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...

Microbe-Plant Interactions

Microbe-Plant Interactions

Microbe-plant interactions represent a dynamic spectrum of associations shaped by intricate chemical signaling. These interactions can be neutral, beneficial, or detrimental, and profoundly influence plant physiology, growth, and ecosystem function. The plant microbiome, comprising bacteria, fungi, archaea, protists, and viruses, plays a pivotal role in mediating these effects through surface colonization, internal colonization, or systemic symbiosis.Mutualistic associations, particularly with...

Regulation of Bacterial Virulence

Regulation of Bacterial Virulence

Pathogenic bacteria employ a range of regulatory mechanisms to modulate the expression of virulence genes in response to environmental and host-derived signals. These mechanisms ensure that virulence factors are expressed only under favorable conditions, thereby optimizing infection and survival strategies.Mechanisms of Virulence RegulationKey regulatory strategies include:Two-Component Systems: These consist of a membrane-bound sensor kinase and a cytoplasmic response regulator. Environmental...