主体-细菌相互作用:古老的,专业的内生共生生物的生态和进化见解
Zélia Bontemps1, Kiran Paranjape1, Lionel Guy1
1Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, 75237 Uppsala, Sweden.
FEMS microbiology reviews
|July 31, 2024
概括
深度分支的细胞内甲基蛋白细菌 (DIGs) 是在全球范围内发现的古代共生生物,主要在水生环境中. 环境变化显著影响这些宿主-细菌关系,影响DIG进化和种群动态.
科学领域:
- 微生物学 微生物学
- 进化生物学 进化生物学
- 生态生态学 生态生态学
背景情况:
- 细胞宿主-细菌共生体相互作用是生态和进化过程的基础.
- 内共生生物通常表现出基因组减少和稳定的宿主关系,尽管环境因素可以改变这种动态.
- 深度分支的细胞内甲基蛋白细菌 (DIGs) 代表了一个古老而多样化的内生生物群.
研究的目的:
- 审查环境变化对深度分支的细胞内甲基蛋白细菌 (DIG) 的影响.
- 探索DIGs的分布,基因组特征和生态相互作用.
- 突出奥米克技术在理解DIGs中的作用.
主要方法:
- 对DIG及其宿主现有研究的文献综述.
- 分析报告的分布模式和各种生物群中DIGs的丰度.
- 在DIG中检查IVB型分泌系统的流行和变化的研究.
主要成果:
- DIGs在全球分布,但通常在低丰度,主要在水生环境中发现.
- 大多数DIG具有IVB型分泌系统,对宿主适应至关重要,观察到结构变异.
- 不同环境中的各种微生物相互作用可以影响DIG种群.
结论:
- 环境变化在塑造宿主-细菌共生中发挥着重要作用,特别是在像DIGs这样的古老群体中.
- 类型IVB分泌系统是DIG的一个关键适应,尽管它的具体情况各不相同.
- 未来的奥米克研究将提高我们从生态,分子和进化观点对DIG的理解.
更多相关视频
05:58Author Spotlight: Axenic Rearing of Delia antiqua to Detect the Impact of Intestinal Microbes on Its Growth and Development
Published on: December 22, 2023
677
00:06Analysis of Interactions between Endobiotics and Human Gut Microbiota Using In Vitro Bath Fermentation Systems
Published on: August 23, 2019
7.0K
相关概念视频
01:24Eukaryotic Evolution
33.2K
The endosymbiont theory is the most widely accepted theory of eukaryotic evolution; however, its progression is still somewhat debated. According to the nucleus-first hypothesis, the ancestral prokaryote first evolved a membrane to enclose DNA and form the nucleus. Conversely, the mitochondria-first hypothesis suggests that the nucleus was formed after endosymbiosis of mitochondria.
Contrary to the endosymbiont theory, the eukaryote-first hypothesis proposes that the simpler prokaryotic and...
Contrary to the endosymbiont theory, the eukaryote-first hypothesis proposes that the simpler prokaryotic and...
33.2K
00:58Symbiosis
27.6K
Symbiotic relationships are long-term, close interactions between individuals of different species that affect the distribution and abundance of those species. When a relationship is beneficial to both species, this is called mutualism. When the relationship is beneficial to one species but neither beneficial nor harmful to the other species, this is called commensalism. When one organism is harmed to benefit another, the relationship is known as parasitism. These types of relationships often...
27.6K
01:29Cytoskeletal Proteins in Bacteria
3.4K
Bacterial cells were initially considered simple, randomly organized structures lacking a cytoskeleton. However, the discovery of cytoskeleton homologs in bacteria led to the change of this opinion. Bacterial cytoskeletal filaments regulate the cell shape, cell polarity, cell division, and partitioning of plasmids during cell division. It was later discovered that bacterial cytoskeletal proteins, mainly actin and tubulin homologs, are diverse compared to their eukaryotic counterparts. On the...
3.4K
01:51Prokaryotic Cells
121.7K
Prokaryotes are small unicellular organisms that include the domains—Archaea and Bacteria. Bacteria include many common organisms, such as Salmonella and E. coli, while the Archaea include extremophiles that live in harsh environments, such as volcanic springs.
Like eukaryotic cells, all prokaryotic cells are surrounded by a plasma membrane, have genetic material in the form of single, circular DNA, a cytoplasm that fills the interior of the cell, and ribosomes that synthesize proteins....
Like eukaryotic cells, all prokaryotic cells are surrounded by a plasma membrane, have genetic material in the form of single, circular DNA, a cytoplasm that fills the interior of the cell, and ribosomes that synthesize proteins....
121.7K
02:11The Roles of Bacteria and Fungi in Plant Nutrition
35.2K
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.
35.2K
02:40The Tree of Life - Bacteria, Archaea, Eukaryotes
32.3K
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...
32.3K