Linking physiological processes and feeding behaviors by octopamine.

  title={Linking physiological processes and feeding behaviors by octopamine.},
  author={Mareike Selcho and Dennis Pauls},
  journal={Current opinion in insect science},
  • M. SelchoD. Pauls
  • Published 1 December 2019
  • Biology, Psychology
  • Current opinion in insect science

She’s got nerve: roles of octopamine in insect female reproduction

The role of OA in female reproduction is best characterized in the fruit fly Drosophila melanogaster, and this discussion is focused on this species but includes discussion of Oa in other insect species whenever relevant.

Cholecystokinin/sulfakinin peptide signaling: conserved roles at the intersection between feeding, mating and aggression

Studies of the genetically tractable fly Drosophila have advanced the understanding of SK signaling mechanisms in regulation of satiety and feeding, but also in gustatory sensitivity, locomotor activity, aggression and reproductive behavior.

AmOctα2R: Functional Characterization of a Honeybee Octopamine Receptor Inhibiting Adenylyl Cyclase Activity

The functional characterization of AmOctα2R adds a sixth member to this subfamily of monoaminergic receptors in the honeybee and is an important step towards understanding the actions of octopamine in honeybee behavior and physiology.

Food recognition in a blood-feeding insect: characterization of the pharyngeal taste organ

This work shows the first comprehensive characterization of a pharyngeal taste organ in a hematophagous insect, located antero-dorsally in the pharynx, and found that these neurons are electrically activated by relevant appetitive and aversive gustatory stimuli such as NaCl, ATP and caffeine.

Molecular and Pharmacological Characterization of β-Adrenergic-like Octopamine Receptors in the Endoparasitoid Cotesia chilonis (Hymenoptera: Braconidae)

Important information is offered about the molecular and pharmacological properties of β-adrenergic-like OARs from C. chilonis that will provide the basis to reveal the contribution of individual receptors to the physiological processes and behaviors in parasitoids.

PaOctβ2R: Identification and Functional Characterization of an Octopamine Receptor Activating Adenylyl Cyclase Activity in the American Cockroach Periplaneta americana

The functional characterization of PaOctβ2R and the bioinformatics data uncovered that the monoaminergic receptor family in the hemimetabolic P. americana is similarly complex as in holometabolic model insects like Drosophila melanogaster and the honeybee, Apis mellifera.

The prandial process in flies.



The Role of octopamine and tyramine in Drosophila larval locomotion

It is shown that a small set of about 40 octopaminergic/tyraminergic neurons within the ventral nerve cord is sufficient to trigger proper larval locomotion, and these data will help to understand—for a given neuronal modulator—how specific behavioral functions are executed within distinct subcircuits of a complex neuronal network.

A comprehensive anatomical map of the peripheral octopaminergic/tyraminergic system of Drosophila melanogaster

The anatomy of this aminergic system in relation to peripheral tissues of the entire fly is described, underlining their relevance in modulating complex behaviors.

Tyramine and octopamine: ruling behavior and metabolism.

  • T. Roeder
  • Biology
    Annual review of entomology
  • 2005
Progress made on all levels of OA and TA research has enabled researchers to understand better the molecular events underlying the control of complex behaviors, and these events represent promising targets for new insecticides.

Tyramine action on motoneuron excitability and adaptable tyramine/octopamine ratios adjust Drosophila locomotion to nutritional state

Octopamine and tyramine provide global but distinctly different mechanisms to regulate motoneuron excitability and behavioral plasticity, and their antagonistic actions are balanced within a dynamic range by nutritional effects on TBH.

Ancient coexistence of norepinephrine, tyramine, and octopamine signaling in bilaterians

It is established that norepinephrine, octopamine, and tyramine receptors coexist in some marine invertebrates and that studies of marine animals where all three transmitter systems coexist will be needed for a better understanding of the origin and ancestral functions of these transmitters.

Octopamine mediates starvation-induced hyperactivity in adult Drosophila

This study confirmed and extended previous findings that starvation induced locomotor activity in adult fruit flies Drosophila melanogaster and showed that starvation-induced hyperactivity was directed toward the localization and acquisition of food sources, because it could be suppressed upon the detection of food cues via both central nutrient-sensing and peripheral sweet-sensed mechanisms.

A subset of octopaminergic neurons that promotes feeding initiation in Drosophila melanogaster

It is found that application of octopamine potentiates sensory responses to sucrose in satiated flies, suggesting a model by which OA-VPM4 promotes feeding behavior by modulating the activity of sensory neurons.

How Tyramine β-Hydroxylase Controls the Production of Octopamine, Modulating the Mobility of Beetles

It is concluded that TcTβH controls the biosynthesis amount of OA in the central nervous system (CNS) of insects, and this in turn modulates the mobility of the beetles.

Characterization of the octopaminergic and tyraminergic neurons in the central brain of Drosophila larvae

Genetic ablation of subsets of these neurons allowed us to determine their necessity for appetitive olfactory learning, and reveal that a small subset of about 39 largely morphologically distinguishable octopaminergic/tyraminergic neurons is involved in signaling reward in the Drosophila larval brain.

A Novel Octopamine Receptor with Preferential Expression inDrosophila Mushroom Bodies

The preferential expression of OAMB in mushroom bodies and its capacity to produce cAMP accumulation suggest an important role in synaptic modulation underlying behavioral plasticity.