Apis mellifera octopamine receptor 1 (AmOA1) expression in antennal lobe networks of the honey bee (Apis mellifera) and fruit fly (Drosophila melanogaster)

Irina Sinakevitch, Adrian N. Smith, Fernando Locatelli, Ramon Huerta, Maxim Bazhenov, Brian Smith

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Octopamine (OA) underlies reinforcement during appetitive conditioning in the honey bee and fruit fly, acting via different subtypes of receptors. Recently, antibodies raised against a peptide sequence of one honey bee OA receptor, AmOA1, were used to study the distribution of these receptors in the honey bee brain (Sinakevitch et al., 2011). These antibodies also recognize an isoform of the AmOA1 ortholog in the fruit fly (OAMB, mushroom body OA receptor). Here we describe in detail the distribution of AmOA1 receptors in different types of neurons in the honey bee and fruit fly antennal lobes. We integrate this information into a detailed anatomical analysis of olfactory receptor neurons (ORNs), uni- and multi-glomerular projection neurons (uPNs, and mPNs) and local interneurons (LNs) in glomeruli of the antennal lobe. These neurons were revealed by dye injection into the antennal nerve, antennal lobe, medial and lateral antenno-protocerbral tracts (m-APT and l-APT), and lateral protocerebral lobe (LPL) by use of labeled cell lines in the fruit fly or by staining with anti-GABA. We found that ORN receptor terminals and uPNs largely do not show immunostaining for AmOA1. About seventeen GABAergic mPNs leave the antennal lobe through the ml-APT and branch into the LPL. Many, but not all, mPNs show staining for AmOA1. AmOA1 receptors are also in glomeruli on GABAergic processes associated with LNs. The data suggest that in both species one important action of OA in the antennal lobe involves modulation of different types of inhibitory neurons via AmOA1 receptors. We integrated this new information into a model of circuitry within glomeruli of the antennal lobes of these species.

Original languageEnglish (US)
Article number70
JournalFrontiers in Systems Neuroscience
Volume7
Issue numberOCT
DOIs
StatePublished - Oct 25 2013

Fingerprint

Honey
Bees
Drosophila melanogaster
Diptera
Fruit
Olfactory Receptor Neurons
Octopamine
Neurons
Interneurons
norsynephrine receptor
Mushroom Bodies
Staining and Labeling
Antibodies
gamma-Aminobutyric Acid
Protein Isoforms
Coloring Agents

Keywords

  • Biogenic amine receptors
  • G-protein receptors
  • Learning and plasticity
  • Octopamine
  • Olfactory pathways

ASJC Scopus subject areas

  • Neuroscience (miscellaneous)
  • Cellular and Molecular Neuroscience
  • Cognitive Neuroscience
  • Developmental Neuroscience

Cite this

Apis mellifera octopamine receptor 1 (AmOA1) expression in antennal lobe networks of the honey bee (Apis mellifera) and fruit fly (Drosophila melanogaster). / Sinakevitch, Irina; Smith, Adrian N.; Locatelli, Fernando; Huerta, Ramon; Bazhenov, Maxim; Smith, Brian.

In: Frontiers in Systems Neuroscience, Vol. 7, No. OCT, 70, 25.10.2013.

Research output: Contribution to journalArticle

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