The trail-following pheromone of the termite Serritermes serrifer
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CHEMOECOLOGY
ORIGINAL ARTICLE
The trail‑following pheromone of the termite Serritermes serrifer David Sillam‑Dussès1,2 · Jaromír Hradecký3 · Petr Stiblik3 · Hélida Ferreira da Cunha4 · Tiago F. Carrijo5 · Michael J. Lacey6 · Thomas Bourguignon2,7 · Jan Šobotník2,3 Received: 22 March 2020 / Accepted: 12 September 2020 © Springer Nature Switzerland AG 2020
Abstract The Neotropical family Serritermitidae is a monophyletic group of termites including two genera, Serritermes and Glossotermes, with different way-of-life, the former being the sole obligatory inquiline among “lower” termites, while the latter is a single-site nester feeding on dry rotten red wood. Like the most advanced termite’s family, the Termitidae, the Serritermitidae is an inner group of the paraphyletic family “Rhinotermitidae”, but unlike the Termitidae, it has been poorly studied so far. In this study, we bring new insights into the chemical ecology of this key taxon. We studied the trail-following pheromone of Serritermes serrifer and we identified (10Z,13Z)-nonadeca-10,13-dien-2-one as the only component of the trailfollowing pheromone of this termite species, as it is the case in Glossotermes, the other genus belonging to Serritermitidae. This result makes the family Serritermitidae clearly distinct from other Rhinotermitidae, such as the termites Psammotermes and Prorhinotermes, that use (3Z,6Z,8E)-dodeca-3,6,8-trien-1-ol and/or neocembrene as trail-following pheromones. Keywords Termite · Serritermes · Blattodea · Nonadecadienone · Inquiline · Trail-following pheromone
Introduction
Communicated by Marko Rohlfs. David Sillam-Dussès and Jaromír Hradecký: Co-first authors. * David Sillam‑Dussès [email protected] 1
Laboratory of Experimental and Comparative Ethology UR 4443, University Sorbonne Paris Nord, Villetaneuse, France
2
Faculty of Tropical AgriSciences, Czech University of Life Sciences, Prague, Czech Republic
3
Faculty of Forestry and Wood Sciences, Czech University of Life Sciences, Prague, Czech Republic
4
Universidade Estadual de Goiás, Câmpus Henrique Santilo,, Anápolis, GO, Brazil
5
Centro de Ciências Naturais E Humanas, Universidade Federal do ABC, São Bernardo do Campo, SP, Brazil
6
CSIRO National Collections and Marine Infrastructure, G.P.O. Box 1700, Canberra, ACT 2601, Australia
7
Okinawa Institute of Science and Technology Graduate University, 1919–1 Tancha, Onna‑son, Okinawa 904–0495, Japan
Termites are social cockroaches and their closest living relative is the wood roach Cryptocercus (Lo et al. 2000; Inward et al. 2007; Bourguignon et al. 2015; Buček et al. 2019). Compared to their solitary cockroach relatives, the eusocial termites use many scent signals to orient themselves, with trail-following pheromones being the most studied means of communication (Sillam-Dussès 2010, 2011; Bordereau and Pasteels 2011). Termites are traditionally split into nine families (Krishna et al. 2013), two of which are paraphyletic, Archotermopsidae in respect to Hodotermitidae, and Rhinotermitidae in respect
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