Green laser light (532 nm) activates a chloride current in the C1 neuron of Helix aspersa

Peter J. Reece, Kishan Dholakia, Roger C. Thomas, Glen A. Cottrell

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Abstract

Five hundred and thirty-two nanometers laser light evokes neuron-specific electrical responses in identified neurons of Helix ganglia. Such responses are intensity-dependent over the range 25-1500 mW, readily reversible and repeatable. Detailed experiments on the C1 neuron, which is inhibited by 532 nm light, showed that inhibition results from a selective increase in transmembrane Cl- ion conductance. Experiments with calcium-sensitive microelectrodes suggest that the response does not result from an increase in [Ca2+]i. The change in Cl- ion conductance probably occurs in the extensive plasmalemma infoldings of the proximal axon.

Original languageEnglish
Pages (from-to)265-269
Number of pages5
JournalNeuroscience Letters
Volume433
Issue number3
DOIs
Publication statusPublished - 2008 Mar 15

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All Science Journal Classification (ASJC) codes

  • Neuroscience(all)

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