Neuromodulatory octopaminergic neurones and their functions during insect motor behaviour

Pflüger, H.-J. and Duch, C. and Heidel, E. (2004) Neuromodulatory octopaminergic neurones and their functions during insect motor behaviour. Acta Biologica Hungarica, 55 (1-4). pp. 3-12. ISSN 0236-5383

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Abstract

In this article we describe recent advances in functional studies on the role of octopamine released in the periphery by efferent dorsal or ventral unpaired median neurones. In addition to the previously described modulatory effects on the neuromuscular junction, we describe a metabolic regulatory role for these neurones. Due to their activity glycolytic rates in target tissues, such as muscles, are increased. In flight muscles that use carbohydrate catabolism only at take-off but have to switch to lipid oxidation during prolonged flight, these neurones are only active at rest but are inhibited as soon as flight motor patterns are selected.

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