Summary
With the biogenic amines tryptamine, dopamine, and octopamine as substrates, N-acetyltransferase activity shows no detectable circadian rhythm in homogenates of whole brains of the European corn borerOstrinia nubilalis (Lepidoptera: Pyralidae). The circadian clock of this insect may be fundamentally different from the N-acetyltransferase pacemaker in the pineal gland of vertebrates.
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Evans, P.H., Soderlund, D.M. Biogenic amine acetylation: No detectable circadian rhythm in whole brain homogenates of the insectOstrinia nubilalis. Experientia 38, 302–303 (1982). https://doi.org/10.1007/BF01949354
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DOI: https://doi.org/10.1007/BF01949354