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Updated: Jun 21, 2026

Volatile Sex Pheromone Extraction and Chemoattraction Assay in Caenorhabditis elegans
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Volatile Sex Pheromone Extraction and Chemoattraction Assay in Caenorhabditis elegans

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Caenorhabditis elegans pheromones regulate multiple complex behaviors.

Arthur S Edison1

  • 1Box 100245, Department of Biochemistry & Molecular Biology, McKnight Brain Institute, and National High Magnetic Field Laboratory, University of Florida, Gainesville, FL 32610-0245, USA. aedison@ufl.edu

Current Opinion in Neurobiology
|August 12, 2009
PubMed
Summary
This summary is machine-generated.

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Ascarosides, nematode pheromones, control C. elegans behaviors like male attraction and dauer formation. Their production is environmentally regulated, linking reproduction and survival via these chemical signals.

Area of Science:

  • Nematode biology
  • Chemical ecology
  • Molecular signaling

Background:

  • Ascarosides are key pheromones regulating behaviors in the nematode Caenorhabditis elegans.
  • These molecules influence both mating attraction and the dauer developmental pathway.
  • The environmental regulation of ascaroside production is not well understood.

Purpose of the Study:

  • To investigate the role of ascarosides in controlling C. elegans behaviors.
  • To explore the link between environmental conditions and ascaroside production.
  • To propose a model for how ascarosides regulate the nematode life cycle.

Main Methods:

  • Behavioral assays to observe male attraction and dauer formation.
  • Chemical analysis to identify ascaroside mixtures.

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Using an Adapted Microfluidic Olfactory Chip for the Imaging of Neuronal Activity in Response to Pheromones in Male C. Elegans Head Neurons
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Using an Adapted Microfluidic Olfactory Chip for the Imaging of Neuronal Activity in Response to Pheromones in Male C. Elegans Head Neurons

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Culture and Assay of Large-Scale Mixed-Stage Caenorhabditis elegans Populations
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Culture and Assay of Large-Scale Mixed-Stage Caenorhabditis elegans Populations

Published on: May 5, 2021

Related Experiment Videos

Last Updated: Jun 21, 2026

Volatile Sex Pheromone Extraction and Chemoattraction Assay in Caenorhabditis elegans
06:49

Volatile Sex Pheromone Extraction and Chemoattraction Assay in Caenorhabditis elegans

Published on: August 9, 2024

Using an Adapted Microfluidic Olfactory Chip for the Imaging of Neuronal Activity in Response to Pheromones in Male C. Elegans Head Neurons
07:31

Using an Adapted Microfluidic Olfactory Chip for the Imaging of Neuronal Activity in Response to Pheromones in Male C. Elegans Head Neurons

Published on: September 7, 2017

Culture and Assay of Large-Scale Mixed-Stage Caenorhabditis elegans Populations
08:51

Culture and Assay of Large-Scale Mixed-Stage Caenorhabditis elegans Populations

Published on: May 5, 2021

  • Environmental manipulation to study production regulation.

    • Main Results:

    • Specific ascaroside mixtures at picomolar concentrations induce male-specific attraction.
    • Higher concentrations of ascarosides trigger dauer formation.
    • Ascaroside production is highly sensitive to environmental factors.

    Conclusions:

    • Ascarosides act as crucial signaling molecules coordinating C. elegans reproduction and survival.
    • Environmental cues modulate ascaroside expression, influencing key life cycle decisions.
    • This highlights a model where ascarosides integrate environmental information to regulate nematode development and behavior.