PMID: 9447712Feb 3, 1998Paper

Facilitation at the sexually differentiated laryngeal synapse of Xenopus laevis

Journal of Comparative Physiology. A, Sensory, Neural, and Behavioral Physiology
T D RuelM L Tobias

Abstract

Under physiological conditions, the laryngeal synapse of male Xenopus laevis exhibits marked facilitation during repetitive nerve stimulation. The male laryngeal synapse is weak and requires facilitation to produce muscle action potentials and ultimately sound. The female laryngeal synapse is strong: muscle contractions are produced to single nerve stimuli. We sought to determine if laryngeal synapses of males and females also differ in their ability to facilitate. To measure facilitation, laryngeal muscle action potentials were suppressed either postsynaptically by bathing the preparation in saline containing curare or presynaptically by bathing the preparation in reduced calcium/elevated magnesium saline. Facilitation of postsynaptic potential amplitude or quantal content in response to paired pulses was measured in male and female larynges: there is no sex difference in paired pulse facilitation. Facilitation in response to trains of stimuli, in curare-blocked preparations, increased and reached plateau values more rapidly in females than in males, although the facilitation between the last and first pulses in the train was the same in the sexes. Thus, the sexually differentiated behavior of this synapse is controlled more b...Continue Reading

References

Sep 1, 1991·Developmental Biology·M L TobiasD B Kelley
Dec 1, 1986·The American Journal of Anatomy·D Sassoon, D B Kelley
Sep 1, 1985·Proceedings of the National Academy of Sciences of the United States of America·D A BaxterT H Brown
Oct 13, 1994·Nature·H Kamiya, R S Zucker

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Citations

Feb 18, 1998·Current Opinion in Neurobiology·D B Kelley
Jan 4, 2013·PloS One·Leila GrisaBonald C Figueiredo
Mar 8, 2005·Health Education & Behavior : the Official Publication of the Society for Public Health Education·Jonathan L BlitsteinCheryl L Perry
Mar 20, 2015·The Journal of Experimental Biology·Elizabeth C LeiningerDarcy B Kelley
Jan 8, 2021·The Journal of Experimental Biology·Kelly E SouthElizabeth C Leininger
Aug 24, 2021·The Journal of Experimental Biology·Kelly E SouthElizabeth C Leininger

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