Titre :

Synomones in necrophagous larvae of the blow flies <i>Lucilia sericata</i> and <i>Calliphora vomitoria</i>

Auteur(s) :

Fouché, Quentin [Auteur]
Unité de Taphonomie médico-légale et Anatomie - ULR 7367 [UTML&A]
Charabidzé, Damien [Auteur]
Université libre de Bruxelles [ULB]
Centre d'histoire judiciaire [CHJ]
Lucas, Christophe [Auteur]
Institut de recherche sur la biologie de l'insecte [IRBI]
Université de Tours [UT]
Centre National de la Recherche Scientifique [CNRS]

Titre de la revue :

Medical and Veterinary Entomology

Éditeur :

Wiley

Date de publication :

2022-10-05

ISSN :

0269-283X

Mot(s)-clé(s) en anglais :

(Z)-9-tricosene
aggregation
Calliphoridae
chemical communication
decanoic acid
dynamic headspace analysis
mixed-species groups
pentadecanoic acid
solid-phase microextraction
synomone

Discipline(s) HAL :

Sciences du Vivant [q-bio]/Ecologie, Environnement/Interactions entre organismes
Sciences du Vivant [q-bio]/Biochimie, Biologie Moléculaire/Génomique, Transcriptomique et Protéomique [q-bio.GN]
Sciences du Vivant [q-bio]/Biochimie, Biologie Moléculaire
Sciences du Vivant [q-bio]
Sciences du Vivant [q-bio]/Ecologie, Environnement
Sciences de l'environnement/Biodiversité et Ecologie
Sciences du Vivant [q-bio]/Neurosciences [q-bio.NC]/Psychologie et comportements

Résumé en anglais : [en]

Chemical signals are widespread in insects, but those resulting in interspecific communication (i.e., synomones) remain understudied. Here, we analysed chemicals left on substrates by two species of blow fly larvae, Lucilia ...
Lire la suite >Chemical signals are widespread in insects, but those resulting in interspecific communication (i.e., synomones) remain understudied. Here, we analysed chemicals left on substrates by two species of blow fly larvae, Lucilia sericata (Meigen) and Calliphora vomitoria (Linneaus) (Diptera: Calliphoridae), which can aggregate together on carrion. Using solid-phase microextraction and dynamic headspace analysis, we identified six compounds common to both species: the decanoic, tetradecanoic, pentadecanoic, hexadecanoic and octadecanoic acids, and the 2-ethylhexyl salicylate. We then tested the behavioural effects of the decanoic and pentadecanoic acids using binary-choice experiments, along with the (Z)-9-tricosene, a pheromone found in many arthropods. The time spent by a larva and its average crawling speed were measured in two sides of an arena, where only one contained a compound at 0.25 or 25 μg/μl. No effect was observed when testing the decanoic acid. The pentadecanoic acid only reduced the speed of C. vomitoria larvae at 25 μg/μl. Finally, L. sericata larvae spent less time in the side containing the (Z)-9-tricosene at 0.25 μg/μl, whereas C. vomitoria spent more time and crawled faster in this side at 25 μg/μl. Although these results did not directly evidence synomones, they suggest that the (Z)-9-tricosene could regulate larval aggregations on carrion.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Collections :

• Unité de Taphonomie Médico-Légale & d’Anatomie (UTMLA) - ULR 7367

Source :

Harvested from HAL