Measurement of Mitochondrial Oxygen Consumption in Permeabilized Fibers of Drosophila Using Minimal Amounts of Tissue
April 7th, 2018
In this paper, a method to measure oxygen consumption using high-resolution respirometry in permeabilized thoraxes of Drosophila is described. This technique requires a minimal amount of tissue compared to the classic mitochondrial isolation technique and the results obtained are more physiologically relevant.
The overall goal of this procedure is to evaluate mitochondrial respiration in the common fruit fly, Drosophila Melanogaster, using high resolution respirometry.This is achieved by first dissecting the Drosophila, to collect the thorax.The thoraces containing the flight muscles are then carefully permeabilized mechanically, with sharp forceps, and incubated with saponin, for further permeabilization.The thoraces are then transferred into the chambers of a respirometer, and mitochondrial oxygen consumption is measured with a combination of different substrates, uncouplers and inhibitors.Hi, I am Chlo
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Overview
This paper describes a method for measuring oxygen consumption using high-resolution respirometry in permeabilized thoraxes of Drosophila. This technique is advantageous as it requires less tissue than traditional mitochondrial isolation methods and yields more physiologically relevant results.
Key Study Components
Area of Science
- Neuroscience
- Biology
Background
- Oxygen consumption is a critical measure in metabolic studies.
- Traditional methods often require significant tissue amounts.
- High-resolution respirometry offers a more efficient alternative.
Purpose of Study
- To present a novel method for measuring oxygen consumption.
- To demonstrate the physiological relevance of the results obtained.
Methods Used
- High-resolution respirometry.
- Use of permeabilized thoraxes of Drosophila.
- Comparison with classic mitochondrial isolation techniques.
Main Results
- The new method requires minimal tissue.
- Results are more physiologically relevant than traditional methods.
Conclusions
- The method is effective for studying oxygen consumption.
- It provides a valuable tool for metabolic research in Drosophila.
