微信:在植物免疫力中的Ca2+透通道的新面孔
1State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China.
Stress biology
|September 7, 2023
概括
植物免疫包括信号传递. 一项新的研究确定了WeiTsing,一个内质网膜蛋白质,作为一个关键的通道,保护作物免受像Plasmodiophora brassicae这样的病原体.
科学领域:
- 植物免疫力 植物免疫力
- 信号传递的.
- 植物防御的分子机制
背景情况:
- 植物利用模式触发免疫 (PTI) 和效应器触发免疫 (ETI) 来防御病原体和草食动物.
- 离子 (Ca2+) 在PTI和ETI中发挥着关键作用,通过Ca2+依赖路径调解下游信号级联.
- 虽然已知血Ca2+通道,但植物免疫反应期间负责从细胞内储存的Ca2+释放的通道尚不清楚.
研究的目的:
- 研究细胞内Ca2+释放通道在植物免疫中的作用.
- 为了识别参与植物防御信号的新型蛋白质.
- 阐明内细胞网内居住蛋白WeiTsing在植物病原体相互作用中的功能.
主要方法:
- 阿拉比多普西斯蛋白的鉴定和特征.
- 在对Plasmodiophora brassicae (Pb) 感染的反应中分析了WeiTsing表达模式.
- 调查微信的道活动及其在内质网膜中Ca2+释放中的作用.
- 评估微信对抗Pb的工厂防御的贡献.
主要成果:
- Tsing是一种内分泌网膜内置蛋白质,在Pb感染时在周环中特别表达.
- WeiTsing形成了类似于电阻体的Ca2+导导通道,促进了Ca2+从细胞内储存中的释放.
- 微信的通道活动对于保护布拉西卡作物的石碑免受Pb殖民是必不可少的.
- 微生在植物抗病能力方面发挥着至关重要的作用.
结论:
- 在植物免疫力中,白作为关键的Ca2+释放道.
- 细胞内Ca2+的释放对植物的防御机制做出了重大贡献.
- 微信代表了一种提高作物对病原体耐药性的新目标.
更多相关视频
10:07Identification of Post-translational Modifications of Plant Protein Complexes
Published on: February 22, 2014
24.0K
11:50Bacterial Leaf Infiltration Assay for Fine Characterization of Plant Defense Responses using the Arabidopsis thaliana-Pseudomonas syringae Pathosystem
Published on: October 1, 2015
21.9K
相关概念视频
Cell Signaling in Plants
5.7K
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...
5.7K
Plant Cell Wall
56.8K
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.
56.8K
Defenses Against Pathogens and Herbivores
23.8K
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.
23.8K
Short-distance Transport of Resources
16.1K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
16.1K
Contact-dependent Signaling
44.7K
Contact-dependent signaling, as the name suggests, requires that communicating cells be in direct contact with each other. This is achieved either through receptor-ligand interactions or by specialized cytoplasmic channels that allow the flow of small molecules between cells. In animal cells, channels called gap junctions facilitate contact-dependent signaling in certain tissues, whereas, plasmodesmata perform a similar function in plants.
Gap Junctions
In animal cells, gap junctions are formed...
Gap Junctions
In animal cells, gap junctions are formed...
44.7K
Cell Adhesion in Plants
2.7K
Plants have rigid cell walls that are made up of cell wall polysaccharides that mediate cell-cell adhesion. The primary cell walls of plants consist of two independent and interacting polysaccharide networks: a pectin matrix that embeds the second network comprising cellulose and hemicelluloses.
Pectins are complex heteropolymers mainly composed of negatively-charged α-D-glucopyranosyl uronic acid and some neutral glycosyl residues such as α-L-rhamnopyranose, α-L-arabinofuranose,...
Pectins are complex heteropolymers mainly composed of negatively-charged α-D-glucopyranosyl uronic acid and some neutral glycosyl residues such as α-L-rhamnopyranose, α-L-arabinofuranose,...
2.7K
