Počet záznamů: 1  

Chemical alarm in the termite Termitogeton planus (Rhinotermitidae)

  1. 1.
    0438410 - UOCHB-X 2015 RIV US eng J - Článek v odborném periodiku
    Dolejšová, Klára - Krasulová, Jana - Kutalová, K. - Hanus, Robert
    Chemical alarm in the termite Termitogeton planus (Rhinotermitidae).
    Journal of Chemical Ecology. Roč. 40, 11/12 (2014), s. 1269-1276. ISSN 0098-0331
    Grant CEP: GA ČR GAP506/10/1570
    Institucionální podpora: RVO:61388963
    Klíčová slova: termites * soldiers * frontal gland * alarm pheromone * Rhinotermitidae * Termitogeton
    Kód oboru RIV: CC - Organická chemie
    Impakt faktor: 2.747, rok: 2014

    Effective defense is a common characteristic of insect societies. Indeed, the occurrence of specialized defenders, soldiers, has been the first step toward eusociality in several independent lineages, including termites. Among the multitude of defensive strategies used by termite soldiers, defense by chemicals plays a crucial role. It has evolved with complexity in advanced isopteran lineages, whose soldiers are equipped with a unique defensive organ, the frontal gland. Besides direct defense against predators, competitors, and pathogens, the chemicals emitted by soldiers from the frontal gland are used as signals of alarm. In this study, we investigated the chemical composition of the defensive secretion produced by soldiers of the termite Termitogeton planus (Isoptera: Rhinotermitidae), from West Papua, and the effects of this secretion on the behavior of termite groups. Detailed two-dimensional gas chromatography/mass spectrometry analyses of the soldier defensive secretion revealed the presence of four linear and nine monoterpene hydrocarbons. Soldier head extracts, as well as synthetic mixtures of the monoterpenes found in these extracts, elicited alarm behavior in both soldiers and pseudergates. Our results suggest that the alarm is not triggered by a single monoterpene from the defensive blend, but by a multi-component signal combining quantitatively major and minor compounds.
    Trvalý link: http://hdl.handle.net/11104/0241845