植物模式识别受体的融合进化感知来自三种微生物王国的氨酸丰富模式
Yuankun Yang1, Christina E Steidele2,3, Clemens Rössner4
1Department of Plant Biochemistry, Center of Plant Molecular Biology (ZMBP), Eberhard-Karls-University of Tübingen, Tübingen, Germany. yuankun.yang@zmbp.uni-tuebingen.de.
Nature communications
|June 19, 2023
概括
阿拉比多普西斯RLP30蛋白检测真菌和细菌分子,赋予广泛的免疫. 这个受体这个受体.
科学领域:
- 植物免疫力 植物免疫力
- 分子植物病原体相互作用
- 进化生物学是进化的生物学.
背景情况:
- 类似受体的蛋白质 (RLPs) 是植物免疫系统的关键组成部分.
- 已知Arabidopsis thaliana类似受体蛋白RLP30 (AtRLP30) 对真菌病原体产生免疫力.
研究的目的:
- 为了识别由AtRLP30.0识别的联结体.
- 为了研究RLP30-连接体相互作用的进化影响.
- 探索AtRLP30对各种病原体的更广泛的免疫作用.
主要方法:
- 通过生物化学测试识别连接物.
- 对RLP和连接蛋白的比较序列分析.
- 在Nicotiana tabacum中AtRLP30的功能表达,以评估病原体的敏感性.
主要成果:
- 鉴定出AtRLP30的主要连接体为一种小氨酸丰富的蛋白质 (SCP),存在于真菌和菌体中.
- 来自Nicotiana benthamiana的一个独特的RLP,RE02,也能识别SCP,这表明不同免疫受体的融合进化.
- 在RLP30表现出 Pseudomonads 的细菌蛋白质的二次连接体特异性.
- 烟草中AtRLP30的表达减少了对真菌,菌体和细菌病原体的敏感性.
结论:
- SCP是一种保存的免疫标,驱动着各种植物免疫受体的进化.
- AtRLP30提供了针对三种微生物王国的病原体的宽谱免疫力.
- 通过RLP30介导的模式识别是植物防御的关键机制.
相关概念视频
01:25Cell 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
01:21Three-Domain System of Life
62
Ribosomal RNA (rRNA) sequence analysis revealed three distinct groups of cells: eukaryotes, bacteria, and archaea. In 1978, Carl R. Woese proposed the concept of domains, a taxonomic level above kingdoms, to differentiate these groups. He suggested that archaea and bacteria, despite their similar appearance, represent separate domains. Domains differ in rRNA, membrane lipid structure, transfer RNA, and antibiotic sensitivity.In this classification, animals, plants, and fungi belong to the...
62
02:26Defenses Against Pathogens and Herbivores
23.9K
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.
23.9K
02:40The Tree of Life - Bacteria, Archaea, Eukaryotes
32.7K
The “tree of life” describes the evolution of life and the evolutionary relationships between organisms. The root of the tree is the common ancestor to all life on Earth. All other species radiate from this point, much like the branches of a tree. The numerous tips of these branches on the tree of life represent every living, or extant, species. Extinct species, which are species that no longer exist, can be found towards the center of the tree. Currently, these organisms, both...
32.7K
01:29Microbial Morphologies
54
Bacterial and archaeal cells exhibit remarkable diversity in shape and structure, critical in their adaptability and functionality. Among bacteria, the most commonly observed shapes include cocci and bacilli. Cocci are spherical and may exist singly or in groupings such as pairs (diplococci), chains (streptococci), clusters (staphylococci), or tetrads. Bacilli, in contrast, are rod-shaped and can also occur as single cells, in pairs, or chains, depending on their environmental and genetic...
54
01:54Convergent Evolution
28.1K
Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.
28.1K