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Purinergic receptors as a regulatory process of luminescence in Porichthys luminous organs
Rees, J.F.; Kaouass, M.; Baguet, F. (1991). Purinergic receptors as a regulatory process of luminescence in Porichthys luminous organs. J. Exp. Zool. 258(2): 181-188
In: The Journal of Experimental Zoology. Wiley Interscience: New York, etc.. ISSN 0022-104X; e-ISSN 1097-010X, meer
Peer reviewed article  
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  • Rees, J.F., meer
  • Kaouass, M.
  • Baguet, F., meer
Abstract
    The effects of exogenous adenosine and adenine phosphorylated derivatives were tested on the adrenergic luminescence of isolated luminous organs of the fish Porichthys. Adenosine triphosphate, at concentrations ranging from 10(-5) M to 10(-2)M, strongly inhibited the two peaks of the biphasic-shaped light emission induced by adrenalin. Adenosine diphosphate mimicked the effects of ATP, whereas adenosine monophosphate (AMP) and cyclic-AMP were ineffective. Adenosine had no inhibitory effect but potentiated the first peak of light whose intensity was five times increased. It is concluded that P2-purinergic receptors might be present on photocytes and exert a negative control on the luminescent system. Adenosine-induced potentiation might be related to an intracellular effect of this compound.
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