Artículo
Acetylcholine from visual circuits modulates the activity of arousal neurons in Drosophila
Fecha de publicación:
12/2015
Editorial:
Society for Neuroscience
Revista:
Journal of Neuroscience
ISSN:
0270-6474
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Drosophila melanogaster’s large lateral ventral neurons (lLNvs) are part of both the circadian and sleep-arousal neuronal circuits. In the past, electrophysiological analysis revealed that lLNvs fire action potentials (APs) in bursting or tonic modes and that the proportion of neurons firing in those specific patterns varies circadianly. Here, we provide evidence that lLNvs fire in bursts both during the day and at night and that the frequency of bursting is what is modulated in a circadian fashion. Moreover, we show that lLNvs AP firing is not only under cell autonomous control, but is also modulated bythe network, and inthe process we develop a novel preparationto assessthis.We demonstrate that lLNv bursting mode relies on a cholinergic input because application of nicotinic acetylcholine receptor antagonists impairs this firing pattern. Finally, we found that bursting of lLNvs depends on an input from visual circuits that includes the cholinergic L2 monopolar neurons from the lamina. Our work sheds light on the physiological properties of lLNvs and on a neuronal circuit that may provide visual information to these important arousal neurons.
Palabras clave:
Drosophila
,
Electrophysiology
,
Llnv
,
Acetylcholine
,
Arousal
,
Bursting Neuron
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IBIOBA - MPSP)
Articulos de INST. D/INV.EN BIOMED.DE BS AS-CONICET-INST. PARTNER SOCIEDAD MAX PLANCK
Articulos de INST. D/INV.EN BIOMED.DE BS AS-CONICET-INST. PARTNER SOCIEDAD MAX PLANCK
Citación
Muraro, Nara Ines; Ceriani, Maria Fernanda; Acetylcholine from visual circuits modulates the activity of arousal neurons in Drosophila; Society for Neuroscience; Journal of Neuroscience; 35; 50; 12-2015; 16315-16327
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