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Proc Natl Acad Sci U S A. Dec 1974; 71(12): 4662–4665.
PMCID: PMC433955

Coexistence of Several Putative Neurotransmitters in Single Identified Neurosn of Aplysia

Abstract

By sensitive enzymatic micromethods several putative neurotransmitters were measured in four identifiable neurons of Aplysia californica (R-2, R-14, L-11, and C-1). Serotonin was found in all of these neurons, and octopamine in all but C-1. Acetylcholine has been previously reported to be present in R-2 and L-11. The catecholamines, norepinephrine and dopamine, were not detected in the four cells examined. The possible biological consequence of the presence of several putative transmitters in single identifiable neurons is discussed.

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Selected References

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