Worm Starvation
Worm Starvation - Related Videos
09:24
An Anoxia-starvation Model for Ischemia/Reperfusion in C. elegans
0 Views •
Cited by 4 •
2014
A protocol is described that uses anoxia/starvation in C. elegans to model ischemia/reperfusion. Functional outcomes include increased mortality, visible abnormalities in GFP-labeled neuronal processes, and impaired behavioral responses that require neuronal function.
10:44
An Introduction to Worm Lab: from Culturing Worms to Mutagenesis
0 Views •
Cited by 27 •
2011
Screening for mutants with phenotypic defects is a straightforward method for identifying genes that function in a given biological process. In this article we describe how to culture free living worms (e.g., Pristionchus pacificus) in the laboratory and show two different mutagenesis methods, EMS and TMP/UV.
01:36
Worms as an Alternative Model Organism
0 Views •
2026
All animal procedures described here must be conducted in accordance with institutional animal ethics guidelines and approved by IACUC. All procedures must follow the principles of the 3Rs—Replacement, Reduction, and Refinement—and must be performed by trained personnel. Introduction to C. elegans The nematode (roundworm) Caenorhabditis elegans, commonly known as C. elegans, is a widely used non-vertebrate animal model for studying fundamental biological processes. Because many cellular and...
06:51
Analysis of Autophagy in Penicillium chrysogenum by Using Starvation Pads in Combination With Fluorescence Microscopy
0 Views •
Cited by 2 •
2015
A convenient and powerful method for studying autophagy in Penicillium chrysogenum by using starvation pads (mixtures of agarose and tap water in a microscope slide containing a central cavity) is presented here.
04:19
Selective Cleaning of Caenorhabditis Worms for Enrichment of Intestinal Microbiota
0 Views •
2026
Source: Morgan, E., et al. Selective Cleaning of Wild Caenorhabditis Nematodes to Enrich for Intestinal Microbiome Bacteria. J. Vis. Exp. (2021)This video demonstrates a protocol for isolating intestinal bacteria of interest from wild Caenorhabditis worms. The worms are first starved and washed to eliminate residual feeding bacteria from their surface and intestinal lumen while preserving the target microbes. After surface cleaning and multiple crawling steps, the worms are dissected to extract...
FAQs
During nutrient deprivation, worms shift how they manage energy. They mobilize stored resources while reducing growth, reproduction, and other energy-intensive activities. This reallocation helps researchers connect changes in nutrient-sensing pathways and metabolism with survival under limited resources. The result is a tractable biological context for studying energy balance and stress adaptation.
Growth and reproduction require substantial energy, so worms reduce these activities when nutrients are unavailable. Measuring these changes helps reveal how the organism prioritizes survival over energy-intensive functions. In controlled studies, altered growth or reproductive output can therefore serve as physiological evidence of changes in energy balance and metabolic regulation.
The outcome of starvation depends partly on the worm species and developmental stage. Under nutrient limitation, some worms may enter developmental arrest or form a dauer stage rather than continue normal development. This makes developmental state an important variable when interpreting experiments, because the same nutritional condition may produce different biological responses across life stages or species.
Autophagy is one of the biological processes investigated during controlled starvation experiments. Studying it alongside nutrient-sensing pathways and metabolism helps researchers examine how worms respond to limited resources and altered energy balance. In nematode models, these experiments connect nutrient deprivation with broader questions about aging, stress resistance, and physiological adaptation.
Researchers commonly use nematodes such as Caenorhabditis elegans and expose them to sustained nutrient deprivation under controlled experimental conditions. They then examine responses such as resource mobilization, developmental changes, altered growth or reproduction, and stress-related physiology. This approach allows starvation to function as an experimental condition for linking nutrient availability with organismal outcomes.
Species and developmental stage are important variables because starvation does not produce an identical response in every worm. In some contexts, nutrient deprivation can promote developmental arrest or dauer formation, while other responses involve altered metabolism, reduced growth, or reduced reproduction. Accounting for these differences is essential when comparing starvation experiments or interpreting survival-related outcomes.
Controlled starvation studies can address how organisms regulate energy balance, alter metabolism, and withstand stress when nutrients are limited. In Caenorhabditis elegans and other nematodes, researchers also use this context to investigate autophagy and aging. The resulting observations can show how coordinated physiological changes support survival during changing environmental conditions.
Worm starvation provides a biological model for examining nutrient-sensing pathways, metabolic regulation, autophagy, aging, and stress resistance. These studies do not simply measure whether food is present; they reveal how an organism reorganizes physiology during deprivation. Such findings may help clarify mechanisms that are relevant to health and disease, as described through nematode research.