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Updated: Sep 2, 2025

Using Single-Worm Data to Quantify Heterogeneity in Caenorhabditis elegans-Bacterial Interactions

Using Single-Worm Data to Quantify Heterogeneity in Caenorhabditis elegans-Bacterial Interactions

Published on: July 22, 2022

Using Single-Worm Data to Quantify Heterogeneity in Caenorhabditis elegans-Bacterial Interactions.

Megan N Taylor¹, Satya Spandana Boddu², Nic M Vega³

¹Department of Biology, Emory University.

Journal of Visualized Experiments : Jove

|August 8, 2022

Summary

Individual Caenorhabditis elegans (C. elegans) worm analysis reveals informative bacterial load variability. A new 96-well plate method facilitates studying host-microbe interactions by processing many individual worms efficiently.

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Area of Science:

Microbiology
Host-Microbe Interactions
Nematode Biology

Background:

Caenorhabditis elegans is a key model organism for studying host-microbe and host-microbiome interactions.
Current methods often use batch digests of multiple worms, potentially obscuring crucial inter-individual variation in bacterial colonization.
This approach may lead to inaccurate comparisons across different experimental conditions.

Purpose of the Study:

To highlight the importance of inter-individual variability in C. elegans bacterial colonization.
To demonstrate how batch digest methods can discard informative data.
To establish a practical protocol for analyzing individual C. elegans samples.

Main Methods:

Development of a 96-well plate protocol for the disruption of individual C. elegans.
Colony plating of disrupted individual worms to quantify bacterial load.
Analysis of bacterial colonization variability across numerous individual nematodes.

Main Results:

Batch digest methods for quantifying bacterial load in C. elegans can mask significant inter-individual variability.
This variability is informative for understanding host-microbe dynamics.
A new 96-well plate protocol enables efficient processing of large numbers of individual worms.

Conclusions:

Analyzing individual C. elegans worms is crucial for accurately assessing host-microbe interactions.
The established 96-well plate protocol provides a convenient method for high-throughput analysis of individual worm bacterial loads.
This method enhances the study of host-microbiome variability in C. elegans.