Related Experiment Video
Updated: Jun 5, 2026

Oral Bacterial Infection and Shedding in Drosophila melanogaster
Published on: May 31, 2018
Resource competition and within-host disease dynamics
1Val Smith is at the Dept of Systematics and Ecology, and Environmental Studies Program, University of Kansas, Lawrence, KS 66045, USA; Robert Holt is at the Dept of Systematics and Ecology, and the Natural History Museum, University of Kansas, Lawrence, KS 66045, USA.
Host organisms and pathogens compete for essential nutrients. Understanding this competition using ecological and resource-consumer theory can illuminate disease dynamics and host-pathogen interactions.
Area of Science:
- Microbiology
- Ecology
- Systems Biology
Background:
- Host organisms comprise diverse cell populations requiring nutrients for survival and growth.
- Pathogens and indigenous microflora share nutrient resources with host cells.
- Competition for growth-limiting nutrients is a key factor in host-microbe interactions.
Purpose of the Study:
- To explore the application of ecological theory to host-pathogen dynamics.
- To frame disease processes using mechanistic resource-consumer theory.
Main Methods:
- Ecological theory application.
- Mechanistic resource-consumer modeling.
Main Results:
- Ecological principles explain observed host-pathogen interaction dynamics.
- Resource-consumer theory offers a framework for understanding disease mechanisms.
Conclusions:
- Nutrient competition is central to host-pathogen interactions.
- Ecological and resource-consumer theories provide valuable insights into disease processes.
More Related Videos
12:21A Mouse Model for the Transition of Streptococcus pneumoniae from Colonizer to Pathogen upon Viral Co-Infection Recapitulates Age-Exacerbated Illness
Published on: September 28, 2022
09:54Using Single-Worm Data to Quantify Heterogeneity in Caenorhabditis elegans-Bacterial Interactions
Published on: July 22, 2022
Related Concept Videos
Microbial Interactions: Competition
Competition
Microbial Interactions: Parasitism
Infectious Diseases and Their Occurrence
Malaria
Reservoir of Infection