C Elegans Neurons
C Elegans Neurons - Related Videos
04:13
Studying the Effect of Pesticides on Caenorhabditis elegans Neurons
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2025
This video demonstrates evaluating the neurodegenerative effects of a test chemical on Caenorhabditis elegans with fluorescently tagged neurons. Normal neurons show bright fluorescence of intact soma and processes, while diminished fluorescence, swollen soma, and punctuated processes indicate neurodegeneration.
11:34
Basic Caenorhabditis elegans Methods: Synchronization and Observation
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Cited by 452 •
2012
The easiness of maintaining and propagating the nematode C. elegans make it a nice model organism to work with. The possibility of synchronizing worms allows the work with a significant amount of subjects at the same developmental stage, what facilitates the study of one particular process in many animals.
02:10
Isolation of Neurons from Caenorhabditis elegans via Fluorescence-Activated Cell Sorting
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2025
This video demonstrates the isolation of fluorescently labeled neurons from Caenorhabditis elegans. A cell suspension is obtained from transgenic worms engineered to express fluorescent protein-fused vesicular transmembrane transporters in cholinergic neurons. The fluorescently labeled neurons are then isolated using fluorescence-activated cell sorting (FACS) and maintained in culture.
03:17
Imaging Subcellular Calcium Dynamics in Neurons of Caenorhabditis elegans
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2025
Source: Doser, R., et al. Subcellular Imaging of Neuronal Calcium Handling In Vivo. J. Vis. Exp. (2023)This video demonstrates in vivo imaging of subcellular calcium flux in the ventral nerve cord neurons of transgenic Caenorhabditis elegans strains. Two distinct calcium indicators are employed: a cytoplasmic indicator in one strain and a mitochondrial indicator in another. Neurons are observed under a fluorescence microscope to monitor real-time changes in fluorescence intensity within the...
11:06
In vivo Neuronal Calcium Imaging in C. elegans
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Cited by 20 •
2013
With its small transparent body, well-documented neuroanatomy and a host of amenable genetic techniques and reagents, C. elegans makes an ideal model organism for in vivo neuronal imaging using relatively simple, low-cost techniques. Here we describe single neuron imaging within intact adult animals using genetically encoded fluorescent calcium indicators.
FAQs
Environmental information is processed by circuits that combine sensory input before producing behavior. In C. elegans, chemical synapses, gap junctions, and neuromodulators provide complementary routes for neural communication and integration. Activity in these networks can therefore be examined in relation to locomotion, feeding, learning, and responses to environmental stimuli, connecting cellular signaling with measurable behavior.
Chemical synapses, gap junctions, and neuromodulators represent distinct components of circuit communication in this system. Studying them together helps researchers ask whether a behavioral response reflects direct synaptic signaling, electrically coupled activity, or broader modulatory influence. This distinction matters when interpreting how sensory signals are integrated and how neural activity relates to behaviors such as movement or feeding.
The largely mapped network provides a structural framework for relating particular patterns of neural activity to behavior. Genetic tractability adds experimental control, allowing investigators to manipulate genes while observing neural function or behavioral consequences. Together, these features support precise circuit-level studies rather than relying only on whole-animal behavioral descriptions.
A typical investigation combines genetic manipulation with fluorescence imaging, optogenetics, and a behavioral assay. Genetic methods establish the experimental condition, imaging examines neural circuits or synaptic function, optogenetics enables controlled examination of neural activity, and behavior supplies the functional readout. Using these approaches together connects circuit observations with organism-level outcomes.
Fluorescence imaging is suited to examining neural circuits and synaptic function, whereas behavioral assays reveal consequences at the level of locomotion, feeding, learning, or environmental responses. Pairing them helps determine whether an observed cellular or circuit change is associated with a measurable behavioral outcome, rather than treating either measurement in isolation.
Optogenetics complements fluorescence imaging and behavioral testing by providing a way to examine the effects of controlled neural activity. Researchers can relate that experimental manipulation to circuit function and then assess associated changes in behavior. This approach helps connect neural mechanisms with outcomes such as locomotion, feeding, learning, or responses to environmental stimuli.
They support studies of neural development, behavior, and neurological disease while also revealing general principles of nervous system organization. Because circuit structure is largely mapped and experimental manipulation can be paired with activity imaging and behavior, investigators can connect changes in genes, synaptic function, or neural circuits to organismal responses. This supports both cellular and systems-level research.