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Luminescence control in the brittlestar Amphipholis squamata: effect of cholinergic drugs
De Bremaeker, N.; Mallefet, J.; Baguet, F. (1996). Luminescence control in the brittlestar Amphipholis squamata: effect of cholinergic drugs. Comp. Biochem. Physiol., Part C Pharmacol. Toxicol. Endocrinol. 115(1): 75-82. dx.doi.org/10.1016/S0742-8413(96)00059-X
In: Comparative Biochemistry and Physiology. Part C. Pharmacology, Toxicology and Endocrinology. Pergamon: Oxford. ISSN 1367-8280, more
Peer reviewed article  

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Keyword
    Marine
Author keywords
    echinoderm; luminescence; pharmacology

Authors  Top 
  • De Bremaeker, N.
  • Mallefet, J., more
  • Baguet, F., more

Abstract
    Potassium chloride and cholinergic drugs were rested on isolated arms of Amphipholis squamata; potassium chloride triggered a monophasic light emission; acetylcholine (10-3 M) induced a luminescent response characterized by multiple flashes. ACh luminescence was increased in the presence of the cholinesterase inhibitor, eserine. Nicotinic antagonists, tubocurarine and hexamethonium chloride, had no inhibitory effect on the luminescence; muscarinic antagonists, atropine and benzotropine mesylate inhibited Amphipholis luminescence. These results suggest that the luminescence in A. squamata is mediated through a muscarinic cholinergic system.

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