title: Electrical responses of insect central neurons: augmentation by nerve section or colchicine.
abstract: Intracellular recording from the somata of central motor neurons in the cockroach Periplaneta americana normally shows little or no electrical response evoked by soma depolarization or by antidromic stimulation. Within 4 days after either cutting the axon or administration of colchicine, large action potentials can regularly be recorded from cell bodies of metathoracic motor neurons. Each experimental procedure evokes formation of a dense, perinuclear ribonucleic acid ring in the soma of neurons showing augmented electrical responses.
mesh_terms: D000200:Action Potentials / Q000187:drug effects; D000818:Animals; D001369:Axons / Q000502:physiology*; D003058:Cockroaches; D003078:Colchicine / Q000494:pharmacology*; D009046:Motor Neurons / Q000032:analysis / Q000187:drug effects / Q000502:physiology*; D009469:Neuromuscular Junction / Q000502:physiology; D012313:RNA / Q000032:analysis; D009435:Synaptic Transmission / Q000187:drug effects; D013997:Time Factors
chemical_list: D012313:RNA; D003078:Colchicine