Article (Scientific journals)
Bioluminescence in lanternsharks: Insight from hormone receptor localization
Duchatelet, Laurent; Delroisse, Jérôme; Mallefet, Jérôme
2020In General and Comparative Endocrinology, 294 (113488)
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Abstract :
[en] As part of the study of their bioluminescence, the deep-sea lanternshark Etmopterus spinax and Etmopterus molleri (Chondrichthyes, Etmopteridae) received growing interest over the past ten years. These mesopelagic sharks produce light thanks to a finely tuned hormonal control involving melatonin, adrenocorticotropic hormone and α-melanocyte-stimulating hormone. Receptors of these hormones, respectively the melatonin receptors and the melanocortin receptors, are all members of the G-protein coupled receptor family i.e. coupled with specific G proteins involved in the preliminary steps of their transduction pathways. The present study highlights the specific localization of the hormonal receptors, as well as of their associated G-proteins within the light organs, the so-called photophores, in E. spinax and E. molleri through immunohistofluorescence technic. Our results allow gaining insight into the molecular actors and mechanisms involved in the control of the light emission in Etmopterid sharks.
Disciplines :
Zoology
Author, co-author :
Duchatelet, Laurent
Delroisse, Jérôme  ;  Université de Liège - ULiège > Département des sciences fonctionnelles (DSF) > Biochimie et biologie moléculaire
Mallefet, Jérôme
Language :
English
Title :
Bioluminescence in lanternsharks: Insight from hormone receptor localization
Publication date :
06 April 2020
Journal title :
General and Comparative Endocrinology
ISSN :
0016-6480
eISSN :
1095-6840
Publisher :
Elsevier
Volume :
294
Issue :
113488
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 21 February 2024

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