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Epinastine, a highly specific antagonist of insect neuronal octopamine receptors.
The natural flight of the migratory locust,Locusta migratoria L.
Wing-beat frequencies of locusts of Australian and New Guinea swarms were higher than laboratory figures, and flight speed was found to be correlated with wing-beat frequency with a similar regression line to that found in laboratory work.
The influence of the air-current sense organs on the flight behaviour ofLocusta migratoria
- M. Gewecke
- BiologyJournal of comparative physiology
- 1 February 1975
Findings suggest that in free flying locusts the air-current sense organs affect the flight speed in opposite ways: the hair patches stimulate it and the antennae reduce it, they being the sensory units of a negative feedback mechanism.
Tyramine and octopamine: antagonistic modulators of behavior and metabolism.
- T. Roeder, M. Seifert, Christian Kähler, M. Gewecke
- BiologyArchives of insect biochemistry and physiology
- 1 September 2003
Recent progress made on all levels of octopamine/tyramine research enabled us to better understand the molecular events underlying the control of complex behaviors.
Putative histamine‐gated chloride channel subunits of the insect visual system and thoracic ganglion
The lack of non‐photoreceptor dependent staining in the brain indicates that mechanosensory transmission differs between the head and the thorax/abdomen, and that the receptors responding to brain‐intrinsic histaminergic cells use different signalling pathways.
Octopamine receptors in the honey bee and locust nervous system: pharmacological similarities between homologous receptors of distantly related species
The neuronalOctopamine receptor of insects served as a model to study the pharmacological similarity of homologous receptors from distantly related species, because bees and locusts are separated by at least 330 million years of evolution.
Antennae: Another Wind-sensitive Receptor in Locusts
- M. Gewecke
- 28 March 1970
FIVE pairs of wind-sensitive hair beds at the upper part of the head control flight posture and wing movement of locusts1–7. But the antennae of flies and bees are airflow receptors which regulate…
Compensation of visually simulated wind drift in the swarming flight of the desert locust (Schistocerca gregaria)
The visual control of translatory movements in the desert locust Schistocerca gregaria was investigated under open-loop conditions, revealing a tendency for locusts to orient either upwind or downwind under the same stimulus situation and confirming that wind-related orientation can occur at altitudes of several hundred metres.
Motoneuronal control of antennal muscles in Locusta migratoria