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Octopaminergic system in the brain controls aggressive motivation in the ant, Formica Japonica

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Title: Octopaminergic system in the brain controls aggressive motivation in the ant, Formica Japonica
Authors: Aonuma, Hitoshi Browse this author →KAKEN DB
Watanabe, Takayuki Browse this author
Keywords: Social insect
biogenic amine
Issue Date: 2012
Publisher: Akadémiai Kiadó
Journal Title: Acta Biologica Hungarica
Volume: 63
Issue: Supplement 2
Start Page: 63
End Page: 68
Publisher DOI: 10.1556/ABiol.63.2012.Suppl.2.6
PMID: 22776474
Abstract: The ant, Formica japonica, is polyphagous and workers hunt other insects as foods. In this study, interspecific aggression was examined in the workers and queens. Behavior experiments demonstrated that interspecific aggressiveness was significantly higher in workers than queens. Workers showed predatory aggressive behavior towards crickets, on the other hand, queens elicited threat behavior but they didn't attack crickets. In order to investigate neuronal mechanisms underlying regulation of aggressive motivation, the role of biogenic amine in the brain in evoking aggressive behavior was examined by measuring biogenic amine using high-performance liquid chromatography (HPLC) with electrochemical detection (ECD). No significant difference in the octopamine (OA) level was found between workers and queens, but the level of N-acetyloctopamine (NacOA) in the brain of queens was significantly higher than that of workers. This study suggests that OAergic system in the brain must involve in controlling aggressive motivation in the ants.
Type: article (author version)
Appears in Collections:電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 青沼 仁志

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