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Published on: March 29, 2022
Acetylcholinesterase activity in Clytia hemisphaerica (Cnidaria)
Elsa Denker1, Arnaud Chatonnet, Nicolas Rabet
1Equipe Evolution et Développement, UMR 7138, Université Pierre et Marie Curie, Paris, France.
Abstract:
Cholinesterase activity is known in representatives of all living organisms phyla but the origin of the cholinergic system as known in bilaterian animals is still undeciphered. In particular the implication of cholinesterases in the nervous system of non-bilaterian Metazoa is not well known. We thus chose to investigate this activity in the Clytia hemisphaerica (Cnidaria) medusa. In toto histochemical staining revealed an acetylcholinesterase activity in the tentacle bulbs but not in the nervous system. Sequences homologous to acetylcholinesterase were searched within Clytia ESTs and compared to other sequences found in public databases.
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