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Bioluminescence properties of Thelepus japonicus (Annelida: Terebelliformia)
Author(s) -
Kin Ikuhiko,
Jimi Naoto,
Oba Yuichi
Publication year - 2019
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.3643
Subject(s) - bioluminescence , annelid , benthic zone , divalent , luminescence , biology , luciferase , luminescent measurements , chemistry , biophysics , biochemistry , zoology , ecology , organic chemistry , physics , transfection , optoelectronics , gene
Terebelliformia is a benthic group of marine annelid worms. The bioluminescence of several species has been reported in taxonomical and histological literature, but very little information is known about the biochemical aspects of this phenomenon. In this study, we examined the basic properties of the luminescence system using an extract of the Japanese terebelliform worm, Thelepus japonicus . The bioluminescence extract was soluble in water, and emitted blue‐green light at λ max 508 nm following the addition of divalent cations. This triggering action was highly specific to Fe 2+ and addition of ATP, H 2 O 2 or coelenterazine did not enhance activity. The bioluminescence was inactivated by heat treatment and organic solvents, indicating the involvement of a protein component. These results suggested that Thelepus worm produces light using a novel system that differs from that in other known luminescent annelids.

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