DOI: 10.1101/469502Nov 14, 2018Paper

Adaptations during maturation in an identified honeybee interneuron responsive to waggle dance vibration signals

BioRxiv : the Preprint Server for Biology
Ajayrama KumaraswamyThomas Wachtler

Abstract

Honeybees are social insects, and individual bees take on different social roles as they mature, performing a multitude of tasks that involve multi-modal sensory integration. Several activities vital for foraging, like flight and waggle dance communication, involve sensing air vibrations using antennae. We investigated changes in the identified vibration-sensitive interneuron DL-Int-1 in the honeybee Apis mellifera during maturation by comparing properties of neurons from newly emerged adult and forager honeybees. Comparison of morphological reconstructions of the neurons revealed minor changes in gross dendritic features and consistent, region dependent and spatially localized changes in dendritic density. Comparison of electrophysiological properties showed an increase in the firing rate differences between stimulus and non-stimulus periods in foragers compared to newly emerged adult bees. The observed differences in neurons of foragers as compared to newly emerged adult honeybees indicate refined connectivity, improved signal propagation, and enhancement of response features important for the network processing of air vibration signals relevant for the waggle-dance communication of honeybees.

Related Concepts

Insecta
Interneurons
Neurons
Apis mellifera
Adaptation
Opsoclonus-Myoclonus Syndrome
Sensory Integration
MRNA Maturation
Antenna Complex
Wnt1 protein, mouse

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