Location and arrangement of campaniform sensilla in Drosophila melanogaster

Autor: Kei Ito, Till Bockemühl, Gesa F. Dinges, Alexander Blanke, Ansgar Büschges, Alexander S. Chockley
Rok vydání: 2020
Předmět:
Zdroj: Journal of Comparative Neurology
The journal of comparative neurology 529(4), 905-925 (2021). doi:10.1002/cne.24987
ISSN: 0021-9967
DOI: 10.1002/cne.24987
Popis: The journal of comparative neurology 529(4), 905 - 925 (2021). doi:10.1002/cne.24987
Sensory systems provide input to motor networks on the state of the body and environment. One such sensory system in insects is the campaniform sensilla (CS), which detect deformations of the exoskeleton arising from resisted movements or external perturbations. When physical strain is applied to the cuticle, CS external structures are compressed, leading to transduction in an internal sensory neuron. In Drosophila melanogaster, the distribution of CS on the exoskeleton has not been comprehensively described. To investigate CS number, location, spatial arrangement, and potential differences between individuals, we compared the front, middle, and hind legs of multiple flies using scanning electron microscopy. Additionally, we imaged the entire body surface to confirm known CS locations. On the legs, the number and relative arrangement of CS varied between individuals, and single CS of corresponding segments showed characteristic differences between legs. This knowledge is fundamental for studying the relevance of cuticular strain information within the complex neuromuscular networks controlling posture and movement. This comprehensive account of all D. melanogaster CS helps set the stage for experimental investigations into their responsivity, sensitivity, and roles in sensory acquisition and motor control in a light-weight model organism.
Published by Wiley-Liss, New York, NY [u.a.]
Databáze: OpenAIRE
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