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Sensation of electric fields in the Drosophila melanogaster larva

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Authors not listed · 2025

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Drosophila melanogaster larvae migrate toward the cathode in a uniform electric field, and a pair of Gr66a-positive head neurons encodes the field's strength and orientation.

Plain English Summary

Summary written for general audiences

Larvae showed robust electrotaxis, moving toward the cathode and adjusting their path when the field orientation changed. A behavioral screen identified a subset of sensory neurons at the tip of the larval head that are necessary for electrotaxis. Calcium imaging revealed that a pair of Gr66a-positive sensory neurons, one on each side of the head, encodes the strength and orientation of the electric field.

Why This Matters

Before this work, it was unclear whether Drosophila could perceive electric fields or how they would do so. The authors conclude that electric fields trigger strong behavioral and neural responses in the larva, supporting the importance of electrosensation in invertebrates.

Cite This Study
Unknown (2025). Sensation of electric fields in the Drosophila melanogaster larva.
Show BibTeX
@article{sensation_of_electric_fields_in_the_drosophila_melanogaster_larva_ce4561,
  author = {Unknown},
  title = {Sensation of electric fields in the Drosophila melanogaster larva},
  year = {2025},
  doi = {10.1016/j.cub.2025.03.014},
  
}

Quick Questions About This Study

Drosophila larvae migrate toward the cathode in a uniform electric field and quickly adjust to changes in field orientation.
A pair of Gr66a-positive sensory neurons on each side of the head encodes the strength and orientation of the electric field.
They used a behavioral screen to find sensory neurons at the tip of the larval head that are required for electrotaxis.
The results show that electric fields produce strong behavioral and neural responses in Drosophila larvae, adding evidence that electrosensation is significant in invertebrates.
It was unclear whether Drosophila could perceive electric fields and what the neural basis might be.