Long-lasting decrease in the crayfish giant motoneuron soma excitability induced by Ca2+ influx.

M Roux-Bruxelle; J Czternasty; J Bruner

doi:10.1016/0006-8993(91)91453-8

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PubMed · 1815826

Long-lasting decrease in the crayfish giant motoneuron soma excitability induced by Ca2+ influx.

M Roux-Bruxelle·J Czternasty·J Bruner

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Abstract

After a single Ca-dependent action-potential or a 300 ms clamp pulse to 0 mV in the motor giant somata of the crayfish abdominal nerve cord, a decrease in input resistance, an afterhyperpolarisation and a shortening of the test action potentials were observed during 10-15 min. These effects were due to a novel type of long-lasting outward current, triggered by a single influx of Ca2+, resistant to TEA+ and blocked by Ba2+.

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Action Potentials Animals Astacoidea Barium Barium Compounds Calcium Chlorides Ganglia In Vitro Techniques Motor Neurons Tetraethylammonium Tetraethylammonium Compounds Time Factors Journal Article

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M Roux-Bruxelle, J Czternasty, J Bruner. 1991-12-13. Long-lasting decrease in the crayfish giant motoneuron soma excitability induced by Ca2+ influx.. https://doi.org/10.1016/0006-8993(91)91453-8

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