A GABAergic and peptidergic sleep neuron as a locomotion stop neuron with compartmentalized Ca2+ dynamics
Please always quote using this URN: urn:nbn:de:bvb:20-opus-223273
- Animals must slow or halt locomotion to integrate sensory inputs or to change direction. In Caenorhabditis elegans, the GABAergic and peptidergic neuron RIS mediates developmentally timed quiescence. Here, we show RIS functions additionally as a locomotion stop neuron. RIS optogenetic stimulation caused acute and persistent inhibition of locomotion and pharyngeal pumping, phenotypes requiring FLP-11 neuropeptides and GABA. RIS photoactivation allows the animal to maintain its body posture by sustaining muscle tone, yet inactivating motor neuronAnimals must slow or halt locomotion to integrate sensory inputs or to change direction. In Caenorhabditis elegans, the GABAergic and peptidergic neuron RIS mediates developmentally timed quiescence. Here, we show RIS functions additionally as a locomotion stop neuron. RIS optogenetic stimulation caused acute and persistent inhibition of locomotion and pharyngeal pumping, phenotypes requiring FLP-11 neuropeptides and GABA. RIS photoactivation allows the animal to maintain its body posture by sustaining muscle tone, yet inactivating motor neuron oscillatory activity. During locomotion, RIS axonal Ca2+ signals revealed functional compartmentalization: Activity in the nerve ring process correlated with locomotion stop, while activity in a branch correlated with induced reversals. GABA was required to induce, and FLP-11 neuropeptides were required to sustain locomotion stop. RIS attenuates neuronal activity and inhibits movement, possibly enabling sensory integration and decision making, and exemplifies dual use of one cell across development in a compact nervous system.…
Author: | Wagner Steuer Costa, Petrus Van der Auwera, Caspar Glock, Jana F. Liewald, Maximilian Bach, Christina Schüler, Sebastian Wabnig, Alexandra Oranth, Florentin Masurat, Henrik Bringmann, Liliane Schoofs, Ernst H. K. Stelzer, Sabine C. Fischer, Alexander Gottschalk |
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URN: | urn:nbn:de:bvb:20-opus-223273 |
Document Type: | Journal article |
Faculties: | Fakultät für Biologie / Theodor-Boveri-Institut für Biowissenschaften |
Language: | English |
Parent Title (English): | Nature Communications |
Year of Completion: | 2019 |
Volume: | 10 |
Article Number: | 4095 |
Source: | Nature Communications (2019) 10:4095. https://doi.org/10.1038/s41467-019-12098-5 |
DOI: | https://doi.org/10.1038/s41467-019-12098-5 |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie |
Tag: | cellular neuroscience; neural circuits |
Release Date: | 2024/06/14 |
Licence (German): | CC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International |