Journal of Chemical Ecology

, Volume 34, Issue 4, pp 478–486

(E,E)-α-Farnesene, an Alarm Pheromone of the Termite Prorhinotermes canalifrons

  • Jan Šobotník
  • Robert Hanus
  • Blanka Kalinová
  • Rafal Piskorski
  • Josef Cvačka
  • Thomas Bourguignon
  • Yves Roisin
Article

DOI: 10.1007/s10886-008-9450-2

Cite this article as:
Šobotník, J., Hanus, R., Kalinová, B. et al. J Chem Ecol (2008) 34: 478. doi:10.1007/s10886-008-9450-2

Abstract

The behavioral and electroantennographic responses of Prorhinotermes canalifrons to its soldier frontal gland secretion, and two separated major components of the secretion, (E)-1-nitropentadec-1-ene and (E,E)-α-farnesene, were studied in laboratory experiments. Behavioral experiments showed that both the frontal gland secretion and (E,E)-α-farnesene triggered alarm reactions in P. canalifrons, whereas (E)-1-nitropentadec-1-ene did not affect the behavior of termite groups. The alarm reactions were characterized by rapid walking of activated termites and efforts to alert and activate other members of the group. Behavioral responses to alarm pheromone differed between homogeneous and mixed groups, suggesting complex interactions. Antennae of both soldiers and pseudergates were sensitive to the frontal gland secretion and to (E,E)-α-farnesene, but soldiers showed stronger responses. The dose responses to (E,E)-α-farnesene were identical for both soldiers and pseudergates, suggesting that both castes use similar receptors to perceive (E,E)-α-farnesene. Our data confirm (E,E)-α-farnesene as an alarm pheromone of P. canalifrons.

Keywords

Alarm behaviorAlarm pheromone(E,E)-α-farneseneChemical communicationTermitesEAGIsopteraRhinotermitidae

Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Jan Šobotník
    • 1
    • 2
  • Robert Hanus
    • 1
  • Blanka Kalinová
    • 1
  • Rafal Piskorski
    • 1
  • Josef Cvačka
    • 1
  • Thomas Bourguignon
    • 2
  • Yves Roisin
    • 2
  1. 1.Institute of Organic Chemistry and BiochemistryCzech Academy of Sciences, v.v.i.Praha 6Czech Republic
  2. 2.Behavioural and Evolutionary EcologyUniversité Libre de Bruxelles-CP 160/12BrusselsBelgium