Drosophila Larvae
Drosophila Larvae - Related Videos
02:29
Establishing Bacterial Infection in Drosophila Larvae
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2026
Source: Hiroyasu, A., D et. al., Extraction of Hemocytes from Drosophila melanogaster Larvae for Microbial Infection and Analysis. J. Vis. Exp. (2018)This video demonstrates the procedure for establishing a bacterial infection in Drosophila larvae by placing them into a bacterial droplet and pricking them with a tungsten needle. The larvae are then incubated on a grooved, nutrient-rich agar plate to study host-pathogen interactions.
06:52
Novel Assay for Cold Nociception in Drosophila Larvae
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Cited by 6 •
2017
Here we demonstrate a novel assay to study cold nociception in Drosophila larvae. This assay utilizes a custom-built Peltier probe capable of applying a focal noxious cold stimulus and results in quantifiable cold-specific behaviors. This technique will allow further cellular and molecular dissection of cold nociception.
08:14
Drosophila melanogaster Embryo and Larva Harvesting and Preparation
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2023
Drosophila melanogaster embryos and larvae are easy to manipulate and develop rapidly by mechanisms that are analogous to other organisms, including mammals. For these reasons, many researchers utilize fly embryos and larvae to answer questions in diverse fields ranging from behavioral to developmental biology. Prior to experimentation, however, the embryos and larvae must first be collected. This video will first demonstrate how "egg-laying cups" are used to collect Drosophila embryos on agar...
07:26
Foraging Path-length Protocol for Drosophila melanogaster Larvae
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Cited by 18 •
2016
We provide a detailed protocol for a Drosophila melanogaster foraging path-length assay. We discuss the preparation and handling of test animals, how to perform the assay and analyze the data.
09:51
Visualization of Proprioceptors in Drosophila Larvae and Pupae
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Cited by 16 •
2012
A method to immunostain and visualize chordotonal organs in larvae and pupae of Drosophila melanogaster is described.
FAQs
Each instar represents a successive larval phase during which the animal feeds and grows before pupation. This staged progression lets researchers relate observed changes in tissues, physiology, or behavior to a defined point in development. Comparing instars can therefore clarify when a trait emerges and how growth precedes the hormonal transition that produces the adult form.
Hormonal metamorphosis links the larval period to the formation of the adult fly during pupation. It provides a biological transition for examining how earlier developmental conditions relate to later organismal traits. Studies can therefore consider larval growth and physiology alongside the major developmental change that reorganizes the animal into its adult stage.
The transparent body allows researchers to observe internal tissues more directly than in many less accessible model organisms. This feature supports investigations of tissue growth and neural function while larvae develop. It also makes the system useful for connecting visible anatomical or developmental changes with underlying cellular and molecular mechanisms.
A well-characterized genome makes Drosophila larvae suitable for genetic screening and for examining how particular genetic mechanisms influence organismal traits. Researchers can connect larval phenotypes with development, physiology, behavior, or disease-related processes. This genetic foundation helps make observations in the larval system interpretable within broader studies of biology.
Researchers can examine how feeding and growth during the larval stages relate to later changes during pupation and adult formation. They may compare tissue development, physiology, behavior, or metabolism across these developmental contexts. Such comparisons help identify whether a cellular or molecular mechanism acts early, changes during metamorphosis, or contributes to a later trait.
Their tractable biology and rapid life cycle support investigations of how environmental conditions affect physiology, behavior, metabolism, and development. Observations can be related to a specific larval stage or to subsequent metamorphosis. This makes the system valuable for asking how external conditions influence biological processes and ultimately shape organismal traits.
Drosophila larvae provide a developmental and genetic context for modeling disease-related processes. Their tissues, neural function, physiology, and metabolism can be examined while researchers investigate cellular and molecular mechanisms associated with disease. The system is especially useful when a study needs to connect genetic changes with observable effects during development.
The larval system supports questions spanning development, physiology, behavior, genetics, neural function, metabolism, and tissue growth. Its rapid life cycle and accessible internal organization allow these areas to be studied within one organismal model. In biology, that breadth helps researchers relate cellular and molecular mechanisms to larger traits and developmental outcomes.