植物微生物群的反通过一般非自我反应基因的剂量反应表达
Andreas Keppler1, Michelle Roulier1, Sebastian Pfeilmeier1
1Institute of Microbiology, ETH Zurich, Zurich, Switzerland.
Nature plants
|December 3, 2024
概括
植物 植物 植物
科学领域:
- 植物生物学 植物生物学
- 微生物组研究的研究.
- 植物免疫力 植物免疫力
背景情况:
- 植物健康依赖于对生物和非生物压力的感知和反应.
- 一组核心基因,一般非自我反应 (GNSR) 基因,是由叶子微生物群诱导的.
研究的目的:
- 研究GNSR基因对叶子微生物群组成的影响.
- 了解植物反应和微生物殖民之间的动态相互作用.
主要方法:
- 对GNSR基因表达反应对活体和非活化的细菌的分析.
- 检查细菌的数量,组成和暴露时间如何影响植物的反应.
- 使用微生物或与危险相关的分子模式将GNSR与模式触发的免疫联系起来.
主要成果:
- GNSR组件调节了叶子微生物群的组成.
- 从改变的微生物群中受益的特定细菌菌株引发了更强烈的植物反应.
- 细菌的数量,细胞组成和暴露时间共同决定了植物的反应程度.
- 通过动态基因表达,GNSR与模式触发免疫有关.
结论:
- GNSR是一个动态的,剂量响应系统,影响叶子微生物群.
- 这个系统有助于植物微生物群相互作用的复杂平衡.
- 了解GNSR是管理植物健康和微生物殖民的关键.
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
11:16A Hydroponic Co-cultivation System for Simultaneous and Systematic Analysis of Plant/Microbe Molecular Interactions and Signaling
Published on: July 22, 2017
14.0K
相关概念视频
Gene Regulation in Microbial Communities: Quorum Sensing
1
Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...
1
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
The Roles of Bacteria and Fungi in Plant Nutrition
35.0K
Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
35.0K
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
Defense Against Bacterial Pathogens
1.4K
The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
1.4K
