European Ocean Biodiversity Information System
[ report an error in this record ]basket (0): add | show Print this page
Proximal to distal gradient of luminescence in the arm of Amphiura filiformis (Echinodermata-Ophiuroidea)
Delval, S.; Mallefet, J. (2010). Proximal to distal gradient of luminescence in the arm of Amphiura filiformis (Echinodermata-Ophiuroidea), in: Harris, L.G. et al. Echinoderms: Durham - Proceedings of the 12th international echinoderm conference, Durham, New Hampshire, USA, 7-11 August, 2006. pp. 355-357
In: Harris, L.G. et al. (2010). Echinoderms: Durham - Proceedings of the 12th international echinoderm conference, Durham, New Hampshire, USA, 7-11 August, 2006. CRC Press: [s.l.]. ISBN 978-0-415-40819-6. I–XXXVI pp. http://dx.doi.org/10.1201/9780203869543-f
Available in  Authors 
Document type: Conference paper
Keyword
    Marine/Coastal
Authors  Top 
  • Delval, S.
  • Mallefet, J.
Abstract
    Bioluminescence is a widespread phenomenon. Among benthic phyla, echinoderms contain some luminous representatives. The emission of visible light originates from a biochemical reaction where chemical energy is transformed into luminous energy. Two bioluminescent systems exist to date: the luciferin-luciferase and the photoprotein one. We here report for the first time the presence of a luciferin-luciferase system in Amphiura filiformis. New assay methods have been developed to detect luciferin and luciferase contents in A. filiformis tissues. This work shows that luciferin/luciferase contents increase from arm base to the arm tip; this increase parallels the observed raise of the light intensity induced by potassium chloride (KCl) depolarisation of isolated arm. This new approach will provide a useful tool to study functional recovery of luminous capabilities during regeneration in Amphiura filiformis.
All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors