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Related Experiment Videos

Hydroquinone: a general phagostimulating pheromone in termites.

Judith Reinhard1, Michael J Lacey, Fernando Ibarra

  • 1Termite Research Group, CSIRO Entomology, Canberra ACT, Australia. judith1212@hotmail.com

Journal of Chemical Ecology
|March 1, 2002
PubMed
Summary

Termite societies use hydroquinone, a chemical signal from labial glands, to mark food sites. This phagostimulating pheromone is used by diverse termite species worldwide, a unique animal communication phenomenon.

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Area of Science:

  • Chemical Ecology
  • Animal Behavior
  • Entomology

Background:

  • Termite social organization relies on chemical signals (pheromones) from exocrine glands.
  • Labial glands, responsible for saliva production, were investigated for their role in food exploitation.

Purpose of the Study:

  • To identify pheromones involved in communal food exploitation in termites.
  • To investigate the role of labial glands in termite communication.

Main Methods:

  • Chemical analysis of labial gland secretions from Mastotermes darwiniensis.
  • Behavioral assays to test the effect of identified compounds on feeding behavior.
  • Comparative analysis across different termite species.

Main Results:

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  • Hydroquinone (1,4-dihydroxybenzene) was identified as a phagostimulating pheromone in Mastotermes darwiniensis labial glands.
  • Hydroquinone marks feeding sites, stimulating nestmates to feed.
  • Hydroquinone is used globally by diverse termite species as a phagostimulating signal, a unique interspecies phenomenon.

Conclusions:

  • Hydroquinone is a crucial phagostimulating pheromone for termite food exploitation.
  • The widespread use of hydroquinone across termite species suggests significant evolutionary importance.
  • Further research is needed on the biosynthesis, ecological role, and evolution of this pheromone.