Spontaneous and elicited bag cell discharges in gonadectomized Aplysia
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Spontaneous and elicited bag cell discharges in gonadectomized Aplysia.
The neuroendocrine bag cells of the hermaphroditic marine gastropod, Aplysia, secrete peptide hormones that induce release of ripe eggs from the ovotestis. The egg string is subsequently deposited on the substrate by means of a complex sequence of rhythmic head and neck movements. Gonadectomy (removal of the ovotestis) was performed in two closely related species of Aplysia to prevent completel...
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Acetylcholine and the archetypal cholinergic agonist, nicotine, are typically associated with the opening of ionotropic receptors. In the bag cell neurons, which govern the reproductive behavior of the marine snail, Aplysia californica, there are two cholinergic responses: a relatively large acetylcholine-induced current and a relatively small nicotine-induced current. Both currents are readily...
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Acetylcholine-evoked afterdischarge 1 in Aplysia bag cell neurons 2 3 4 by: 5 6 7 Sean H. White and Neil S. Magoski 8 9 10 Department of Physiology, Queen’s University, Kingston, ON, K7L 3N6, Canada 11 12 13 Running title: bag cell neuron cholinergic input 14 15 16 Submitted to the Journal of Neurophysiology as a research article 17 18 19 Manuscript contains: pages (34), figures (8), references...
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A brief synaptic input to the bag cell neurons of Aplysia evokes a lengthy afterdischarge and the secretion of peptide hormones that trigger ovulation. The input transmitter is unknown, although prior work has shown that afterdischarges are prevented by strychnine. Because molluscan excitatory cholinergic synapses are blocked by strychnine, we tested the hypothesis that acetylcholine acts on an...
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Dargaei Z, Standage D, Groten CJ, Blohm G, Magoski NS. Ca -induced uncoupling of Aplysia bag cell neurons. J Neurophysiol 113: 808 – 821, 2015. First published November 19, 2014; doi:10.1152/jn.00603.2014.—Electrical transmission is a dynamically regulated form of communication and key to synchronizing neuronal activity. The bag cell neurons of Aplysia are a group of electrically coupled neuroe...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 1986
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.123.1.159