Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Competition02:34

Competition

21.7K
When organisms require the same limited resources within an environment, they may have to compete for them. Competition is a net-negative interaction. Even if two competing individuals or populations do not interact directly, the overall fitness of both competitors is lowered as a result of not having full access to the limited resource.
21.7K
Ecological Niches02:02

Ecological Niches

23.8K
All organisms have a position within an ecosystem. The complete set of living and nonliving factors—including food resources, climate, and terrain—that define the position of a given organism are collectively referred to as the organism’s ecological niche.
23.8K
Gene Regulation in Microbial Communities: Quorum Sensing01:28

Gene Regulation in Microbial Communities: Quorum Sensing

39
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,...
39
Microbial Morphologies01:29

Microbial Morphologies

47
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...
47
Operon Model01:23

Operon Model

35
The operon model represents a fundamental mechanism of gene regulation in prokaryotes, enabling coordinated expression of genes involved in related metabolic or functional pathways. Operons consist of structural genes, a promoter, and an operator, with transcription regulated by repressors, activators, and small effector molecules.Structure and Function of OperonsAn operon is a cluster of structural genes transcribed together under the control of a single promoter. The promoter region...
35
What are Populations and Communities?00:30

What are Populations and Communities?

34.0K
Overview
34.0K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Repulsion from slow-diffusing nutrients improves microbial chemotaxis towards moving sources.

Nature communications·2026
Same author

Structured interactions explain the absence of keystone species in synthetic microcosms.

The ISME journal·2025
Same author

Collective dynamical regimes predict invasion success and impacts in microbial communities.

Nature ecology & evolution·2025
Same author

Ecosystem stability relies on diversity difference between trophic levels.

Proceedings of the National Academy of Sciences of the United States of America·2024
Same author

Cooperative growth in microbial communities is a driver of multistability.

Nature communications·2024
Same author

Biodiversity is enhanced by sequential resource utilization and environmental fluctuations via emergent temporal niches.

PLoS computational biology·2024

相关实验视频

Updated: Jul 18, 2025

Assembly and Tracking of Microbial Community Development within a Microwell Array Platform
09:24

Assembly and Tracking of Microbial Community Development within a Microwell Array Platform

Published on: June 6, 2017

9.0K

资源竞争可以解释微生物社区组装中的简单性.

Hyunseok Lee1, Blox Bloxham1, Jeff Gore1

  • 1Physics of Living Systems, Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139.

Proceedings of the National Academy of Sciences of the United States of America
|August 21, 2023
PubMed
概括

社区组装预测得到了简化:双对竞争结果准确地预测了多个物种社区的组成,即使是复杂的资源动态和交叉养相互作用.

科学领域:

  • 生态生态学 生态生态学
  • 理论生态学理论生态学
  • 数学生物学 数学生物学

背景情况:

  • 预测社区的组成和多样性是一个关键的生态挑战.
  • 实验室的微观宇宙经常表现出基于对对竞争结果的简单社区集会规则.
  • 对于这种对对竞争的预测能力的机制基础尚不清楚.

研究的目的:

  • 阐明来自资源竞争的简单社区集会模式的机械起源.
  • 为了确定在哪些条件下,双对竞争准确地预测了多种群的社区组合.
  • 调查交叉养对组装规则可预测性的影响.

主要方法:

  • 消费者资源模型的几何分析.
  • 根据三个资源,确定所有可能的三人社区集会结果.
  • 模拟社区集会,使用不同数量的资源和物种.
  • 使用对式分数的和平均值进行社区组成的定量预测.

主要成果:

  • 三人社区的组建可以从双对结果中预测,当一个物种在每个资源上都有增长优势时.
  • 在所有可能的三人组合结果中,只有两个违反了组合规则.
  • 配对竞争准确地预测了多达十二个物种和100个资源的社区的组装.
关键词:
组装规则 组装规则社区集会 社区集会交叉养 - 交叉养是什么?微生物生态学 微生物生态学资源模型是一个资源模型.

更多相关视频

Assembly and Quantification of Co-Cultures Combining Heterotrophic Yeast with Phototrophic Sugar-Secreting Cyanobacteria
05:44

Assembly and Quantification of Co-Cultures Combining Heterotrophic Yeast with Phototrophic Sugar-Secreting Cyanobacteria

Published on: December 27, 2024

868
Exploring the Root Microbiome: Extracting Bacterial Community Data from the Soil, Rhizosphere, and Root Endosphere
09:55

Exploring the Root Microbiome: Extracting Bacterial Community Data from the Soil, Rhizosphere, and Root Endosphere

Published on: May 2, 2018

26.9K

相关实验视频

Last Updated: Jul 18, 2025

Assembly and Tracking of Microbial Community Development within a Microwell Array Platform
09:24

Assembly and Tracking of Microbial Community Development within a Microwell Array Platform

Published on: June 6, 2017

9.0K
Assembly and Quantification of Co-Cultures Combining Heterotrophic Yeast with Phototrophic Sugar-Secreting Cyanobacteria
05:44

Assembly and Quantification of Co-Cultures Combining Heterotrophic Yeast with Phototrophic Sugar-Secreting Cyanobacteria

Published on: December 27, 2024

868
Exploring the Root Microbiome: Extracting Bacterial Community Data from the Soil, Rhizosphere, and Root Endosphere
09:55

Exploring the Root Microbiome: Extracting Bacterial Community Data from the Soil, Rhizosphere, and Root Endosphere

Published on: May 2, 2018

26.9K
  • 交叉养相互作用不会降低组装规则预测的准确性.

    • 结论:

    • 简单的社区集会模式可以从潜在的资源竞争动态中出现.
    • 配对竞争为社区集会提供了强大而准确的预测框架.
    • 这些发现甚至适用于复杂的生态场景,具有多种资源和物种间相互作用.