Drosophila Larval Fat Body
Drosophila Larval Fat Body - Related Videos
08:29
Drosophila Larval IHC
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2023
Immunohistochemistry (IHC) is a technique used to visualize the presence and location of proteins within tissues. Drosophila larvae are particularly amenable to IHC because of the ease with which they can be processed for staining. Additionally, the larvae are transparent, meaning that some tissues can be visualized without the need for dissection. In IHC, proteins are ultimately detected with antibodies that specifically bind to “epitopes” within the protein of interest. In order to preserve...
06:02
Analyzing Starvation-Induced Autophagy in the Drosophila melanogaster Larval Fat Body
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Cited by 6 •
2022
The present protocol describes the induction of autophagy in the Drosophila melanogaster larval fat body via nutrient depletion and analyzes changes in autophagy using transgenic fly strains.
07:40
Dissection and Staining of Drosophila Larval Ovaries
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Cited by 28 •
2011
How niches and stem cells form during development is an important question with practical implications. In the Drosophila ovary, germ line stem cells and their somatic niches form during larval development. This video demonstrates how to dissect, stain and mount female gonads from late third instar (LL3) Drosophila larvae.
07:18
Visualization of Larval Segmental Nerves in 3rd Instar Drosophila Larval Preparations
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Cited by 13 •
2010
Drosophila melanogaster larvae provide an ideal model system to investigate the mechanisms of axonal transport within larval segmental nerves. Using this procedure, 3rd instar larvae carrying various mutations can be compared to wild type larvae.
09:23
Functional Analysis of the Larval Feeding Circuit in Drosophila
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Cited by 22 •
2013
The feeding circuit in Drosophila melanogaster larvae serves a simple yet powerful model that allows changes in feeding rate to be correlated with alterations in the stomatogastric neural circuitry. This circuit is composed of central serotonergic neurons that send projections to the mouth hooks as well as the foregut.
FAQs
Nutrient sensing in this tissue links stored resources with signals that influence the rest of the organism. Its cells monitor dietary input while maintaining glycogen, triglyceride, and protein reserves, then communicate information through circulating factors and endocrine signals. This connection helps coordinate metabolism and growth, allowing larval development to respond to changing nutritional conditions.
Insulin-like signaling provides a mechanism for coupling nutritional state to larval growth. In the fat body, responses to diet can alter how growth is regulated, linking local nutrient information with organism-wide developmental control. Studying this relationship helps researchers examine how metabolic tissues influence developmental progression, rather than treating growth as an independent process.
The tissue's immune function adds a defense dimension to its metabolic activities. Researchers can examine how nutrient storage and systemic physiology relate to host-pathogen interactions while considering how immune demands intersect with the larva's broader metabolic state. This makes the fat body useful for studying immunity in the context of an intact, developing animal.
Its accessibility allows researchers to study a tissue that integrates metabolism, growth, endocrine communication, and immune defense within a developing organism. Because the same tissue reflects nutrient storage and systemic regulation, experiments can connect cellular physiology with whole-animal outcomes. This combination supports investigations ranging from basic developmental biology to mechanisms relevant to metabolic disease.
Starvation-focused studies can assess how the tissue responds when nutrient availability is limited. Researchers can examine the relationship between stored glycogen, triglycerides, and proteins and the signals that coordinate physiology and growth. These observations help distinguish simple nutrient storage from active regulation of the larva's systemic response to deprivation.
Studies of this model address biological mechanisms relevant to obesity, diabetes, and other metabolic disorders. Its value lies in examining how nutrient sensing, storage, endocrine communication, and growth regulation operate together. The tissue also supports host-pathogen research, connecting metabolic disease questions with broader systemic and immune physiology.