H2S 调节宿主-微生物相互作用的过程
Kelsie M Nauta1, Nicholas O Burton1
1Van Andel Research Institute, Department of Metabolism and Nutritional Programing, Grand Rapids, MI, 49503, USA.
Trends in microbiology
|February 6, 2025
概括
硫化 (H2S) 作为模型生物Caenorhabditis elegans和Actinobacteria之间的相互作用中的关键分子媒介,揭示了新的物种间通信通道.
科学领域:
- 微生物学 微生物学
- 分子生物学分子生物学
- 生态生态学 生态生态学
背景情况:
- 确定规范物种间相互作用的分子机制是具有挑战性的.
- 凯诺哈比蒂斯 (Caenorhabditis elegans) 是一种广泛使用的模型生物体,用于研究生物过程.
- 动态细菌是一种多样化的细菌群,以其生态作用而闻名.
研究的目的:
- 阐明参与C. elegans和Actinobacteria之间的相互作用的分子媒介.
- 研究硫化 (H2S) 在这种特定的物种间关系中的作用.
主要方法:
- 使用Caenorhabditis elegans作为一个模型系统.
- 采用分子生物学技术来研究物种间的交流.
- 研究H2S对C. elegans行为和生理学的影响,在Actinobacteria的存在下.
主要成果:
- 帕坦格等人. 帕坦格等人. 证明H2S是一个关键的信号分子.
- H2S调解了C. elegans和Actinobacteria之间的相互作用.
- 这一发现为线虫和细菌群之间提供了特定的分子联系.
结论:
- 硫化在调解物种间相互作用方面发挥着重要作用.
- 这项研究突出了C. elegans和Actinobacteria之间沟通的新型分子机制.
- 这项研究为进一步研究H2S介导的生态相互作用开辟了道路.
相关概念视频
01:18Surface Membrane Barriers
1.0K
The skin and mucous membranes serve as the primary line of defense against pathogens by providing both physical and chemical protection. These barriers are essential in preventing the entry and establishment of microbes, thereby maintaining the integrity of the host.
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
1.0K
01:31Defense 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
01:30Bacterial Signaling
31.4K
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...
31.4K
01:26Factors Affecting the Risk of Infection
11.0K
The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
11.0K
01:26Defense Mechanism Against Infection
6.1K
Natural flora, body system defenses, and inflammation are natural barriers of the body against infectious agents regardless of previous exposure. Normal floras of the human body refer to the microbial population that colonizes the skin and mucous membranes.
In addition, many body organ systems have unique defenses against infection. The skin is an intact, multilayered surface preventing invasion by microorganisms unless impaired. Mucous membranes lining the mouth, nose, and eyelids are barriers...
In addition, many body organ systems have unique defenses against infection. The skin is an intact, multilayered surface preventing invasion by microorganisms unless impaired. Mucous membranes lining the mouth, nose, and eyelids are barriers...
6.1K
01:23Antimicrobial Proteins
877
Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
877