The effect of extracellular potassium concentration on the oscillation frequency of the pacemaker nucleus in the weakly electric fish Apteronotus leptorhynchus.

Apteronotus leptorhynchus Behavioral sexual dimorphism Electric fish Electric organ discharge Extracellular potassium concentration Osmolarity Pacemaker nucleus

Journal

Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology

ISSN: 1432-1351

Titre abrégé: J Comp Physiol A Neuroethol Sens Neural Behav Physiol

Pays: Germany

ID NLM: 101141792

Informations de publication

Date de publication:
23 Oct 2024

Historique:

received: 25 05 2024

accepted: 01 10 2024

revised: 22 09 2024

medline: 23 10 2024

pubmed: 23 10 2024

entrez: 23 10 2024

Statut: aheadofprint

Résumé

The weakly electric brown ghost knifefish (Apteronotus leptorhynchus) exhibits a pronounced sexual dimorphism in its electric behavior-males discharge at higher frequencies than females, with little overlap between the sexes. The frequency of these electric organ discharges is controlled by the frequency of the synchronized oscillations of the medullary pacemaker nucleus. Previous studies have suggested that sex-specific differences in the morphology and gene expression pattern of the astrocytic syncytium that envelopes the pacemaking neural network cause differences in its capacity to buffer the extracellular concentration of K

Identifiants

DOI: 10.1007/s00359-024-01719-0 PMID: 39441389

pubmed: 39441389

doi: 10.1007/s00359-024-01719-0

pii: 10.1007/s00359-024-01719-0

doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

Subventions

Organisme : National Science Foundation

ID : 1946645

Organisme : National Science Foundation

ID : 1946910

Informations de copyright

Références

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