Coelenterazine detection in five myctophid species from the Kerguelen Plateau

Duchatelet, Laurent;Hermans, Claire;Duhamel, Guy;Cherel, Yves;Mallefet, Jérôme;et.al.
(2019) The Kerguelen Plateau : Marine Ecosystem + Fisheries : Proceedings of the Second Symposium — Location: Hobart, Tasmania, Australia (13.November.2017)

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Authors
  • Author
  • Hermans, ClaireUCLouvain
    Author
  • Duhamel, GuyMuséum national d’Histoire naturelle, Département Adaptations du vivant, UMR 7208 BOREA (MNHN, CNRS, IRD, UPMC, UCBN), Sorbonne Universités, CP 26, 43 rue Cuvier, 75231 Paris cedex 05, France
    Author
  • Cherel, YvesCentre d’Etudes Biologiques de Chizé, UMR 7372 du CNRS-Université de La Rochelle, 79360 Villiers-en-Bois, France
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Abstract
Myctophidae comprise the largest biomass of mesopelagic fishes in the Southern Ocean. This family has the ability to emit light – bioluminescence – via specific organs called photophores, and from the head and caudal organs. Through biochemical analyses, this study reveals that coelenterazine is the substrate for light reaction in the five most common myctophid species from the Southern Ocean. The results also support the hypothesis of the acquisition of this molecule via the food chain and reveal the presence of two stabilised storage forms of coelenterazine (enol-sulfate and dehydrocoelenterazine) within various tissues of the studied species. Finally, detection of coelenterazine in the gonads also suggests the potential maternal transfer of the bioluminescence capability to the offspring.
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Citations

Duchatelet, L., Hermans, C., Duhamel, G., Cherel, Y., Guinet, C., & Mallefet, J. (2019). Coelenterazine detection in five myctophid species from the Kerguelen Plateau. In Francois J. Meunier . (ed.), The Kerguelen Plateau : Marine Ecosystem + Fisheries : Proceedings of the Second Symposium (p. p. 31-41). https://hdl.handle.net/2078.5/223828