CEP信号协调植物免疫与状态
Jakub Rzemieniewski1, Henriette Leicher1, Hyun Kyung Lee2
1Phytopathology, TUM School of Life Sciences, Technical University of Munich, Freising, Germany.
Nature communications
|December 16, 2024
概括
植物称为C-TERMINALLY ENCODED PEPTIDES (CEPs) 作为免疫信号,增强植物对细菌病原体的防御能力. 这种免疫受到特定受体的调节,并与状态有关.
科学领域:
- 植物生物学 植物生物学
- 分子免疫学分子免疫学
- 植物病原体相互作用
背景情况:
- 植物内源信号调节生长和应激反应.
- 已知C-终端编码 (CEP) 影响根生长和信号传递.
研究的目的:
- 研究CEP作为Arabidopsis thaliana中的免疫调节性植物细胞因子的作用.
- 确定参与CEP介导免疫对细菌病原体的受体.
主要方法:
- 识别CEP作为免疫调节剂.
- 评估 CEP 在抗 Pseudomonas syringae pv. 的耐药性方面的作用. 番茄 番茄 番茄 番茄 番茄
- 研究CEP受体1 (CEPR1),CEPR2和受体相似基因酶7 (RLK7) 在CEP介导免疫中的功能.
- 分析状态对CEP介导免疫力的影响.
主要成果:
- CEP被确定为诱导免疫输出的免疫调节性植物细胞因子.
- CEP对于抗 Pseudomonas syringae pv. 的耐药性至关重要. 番茄 番茄 番茄 番茄 番茄
- 组织特异性受体CEPR1和CEPR2,以及RLK7,对于有效的CEP介导免疫是至关重要的.
- 由CEP及其受体介导的植物免疫力取决于状态,表明营养和免疫力之间存在交叉关系.
结论:
- CEP在植物中起到关键的免疫调节者的作用,作为植物细胞因子.
- 一个复杂的CEP连接体和受体网络调解了植物免疫.
- 通过CEP介导的免疫与植物状况交织在一起,突出了营养和防御之间的新联系.
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
Plant Hormones
23.5K
Plant hormones—or phytohormones—are chemical molecules that modulate one or more physiological processes of a plant. In animals, hormones are often produced in specific glands and circulated via the circulatory system. However, plants lack hormone-producing glands.
23.5K
Key Elements for Plant Nutrition
18.6K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.6K
Defenses Against Pathogens and Herbivores
23.1K
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.
23.1K
Contact-dependent Signaling
44.4K
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...
44.4K
Bacterial Signaling
31.5K
Bacterial signaling can occur within bacteria (intracellular) or between bacteria (intercellular). At times, a group of bacteria behaves like a community. To achieve this, they engage in quorum sensing, the perception of higher cell density that causes changes in gene expression. Quorum sensing involves both extracellular and intracellular signaling. The signaling cascade starts with a molecule called an autoinducer (AI). Individual bacteria produce AIs that move out of the bacterial cell...
31.5K


