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Updated: Aug 7, 2026
05:27
An Intestinal Gut Organ Culture System for Analyzing Host-Microbiota Interactions
Published on: June 30, 2021
Assembly of the human intestinal microbiota
Les Dethlefsen1, Paul B Eckburg, Elisabeth M Bik
1Department of Microbiology & Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA. dethlefs@stanford.edu
Trends in Ecology & Evolution
|July 6, 2006
Summary
Human gut microbiota is more dynamic than previously thought. Community history and temporal changes, not just competition, shape these complex microbial ecosystems throughout life.
Area of Science:
- Microbiology
- Ecology
- Human Physiology
Background:
- Mammalian bodies host complex microbial ecosystems on skin, mucosa, and alimentary tracts.
- Recent research emphasizes microbial community diversity and host physiological importance.
- Existing ecological models of the human gut microbiota are incomplete.
Purpose of the Study:
- To challenge the 'climax community' model of the human gut microbiota.
- To propose alternative ecological processes that shape intestinal microbial communities.
- To investigate the role of historical and temporal factors in microbial community structure.
Main Methods:
- The study presents a theoretical argument based on existing experimental data.
- It reviews and synthesizes current research on microbial ecology and human microbiota.
- No new experimental data was generated; it is a review and synthesis.
Main Results:
- The 'climax community' model, emphasizing superior competitors for stable niches, does not fully explain gut microbiota structure.
- Unique historical contingencies of each microbial community play a significant role.
- Intrinsic temporal dynamics within the community also influence its structure.
Conclusions:
- The human intestinal microbiota is not a static climax community.
- Community history and temporal dynamics are crucial factors in establishing and maintaining gut microbial ecosystems.
- A more dynamic ecological perspective is needed to understand the human microbiota throughout life.
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