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[Effect of serotonin on nervous system function and behavior in the honeybee]
Fiziologicheskii Zhurnal SSSR Imeni I. M. Sechenova
|March 1, 1982
Summary
Serotonin at low doses boosted honey bee chemoreceptor activity and dance rhythms. Higher doses disrupted neural activity, dance rhythms, and food conditioning, suggesting complex serotonin effects.
Area of Science:
- Neurobiology
- Insect Physiology
- Biochemistry
Context:
- Honey bees (Apis mellifera) exhibit complex behaviors influenced by neurochemicals.
- Serotonin is a key neurotransmitter with diverse physiological roles.
- Understanding insect neurochemistry is vital for behavioral ecology and pest management.
Purpose:
- To investigate the dose-dependent effects of serotonin on honey bee neurophysiology and behavior.
- To explore the role of serotonin in modulating chemoreception, motor activity, and learning.
- To examine potential links between serotonin, neural function, and metabolic disorders like tryptophanuria.
Summary:
- Low concentration (0.0025%) serotonin enhanced honey bee chemoreceptor excitability and dancing rhythm rate.
- Higher serotonin concentrations reduced electrical activity in the thoracic ganglion, decreased dance rate, and accelerated food conditioning reflex alterations.
- Serotonin did not affect peripheral nervous system excitability thresholds.
Impact:
- Reveals a complex, dose-dependent role for serotonin in honey bee neurophysiology and behavior.
- Provides insights into the neural mechanisms underlying insect communication and learning.
- Suggests a potential serotonergic involvement in disruptions of metabolic pathways, such as tryptophanuria, in insects.