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Related Experiment Video

Updated: Sep 21, 2025

The Tomato/GFP-FLP/FRT Method for Live Imaging of Mosaic Adult Drosophila Photoreceptor Cells
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Functional Imaging from Fly Photoreceptors.

Pei-Ju Chen1, Yan Li1, Chi-Hon Lee2

  • 1Institute of Cellular and Organismic Biology, Academia Sinica, Taipei 11529, Taiwan, Republic of China.

Cold Spring Harbor Protocols
|May 31, 2022
PubMed
Summary
This summary is machine-generated.

This protocol details visualizing calcium changes in fly visual neurons with two-photon microscopy. It includes setting up visual stimuli and synchronizing data for analysis, with an example for UV photoreceptors.

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Area of Science:

  • Neuroscience
  • Optics
  • Molecular Biology

Background:

  • Visual processing in flies is crucial for survival.
  • Calcium imaging is a key technique to study neuronal activity.
  • Two-photon microscopy offers high resolution for deep tissue imaging.

Purpose of the Study:

  • To provide a detailed protocol for visualizing light-evoked calcium changes in fly visual neurons.
  • To guide researchers in setting up visual stimulation and data acquisition systems.
  • To offer an example protocol for measuring intensity-response functions in photoreceptors.

Main Methods:

  • Utilizing two-photon microscopy for high-resolution imaging of neuronal calcium dynamics.
  • Implementing a visual stimulation system tailored for fly neuroscience experiments.
  • Recommending synchronization of imaging and stimuli for robust data analysis.
  • Describing specific procedures for UV illumination experiments.

Main Results:

  • The protocol enables visualization of light-evoked calcium transients in fly visual neurons.
  • Synchronization of stimuli and imaging facilitates accurate correlation of neuronal activity with visual input.
  • The example protocol demonstrates successful measurement of intensity-response functions in UV photoreceptors.

Conclusions:

  • This protocol provides a reproducible method for studying visual processing in flies.
  • The techniques described are adaptable to various research questions in fly neurobiology.
  • Accurate data acquisition and analysis are essential for understanding neuronal responses to visual stimuli.