![]() In the present study, the bioluminescence and fluorescence of P. Recently, the littoral earthworm Pontodrilus longissimus Seesamut & Panha, 2018 was identified in coastal areas in Thailand and peninsular Malaysia 8 and determined to be a separate species based on morphological differences from other congeners in the size of the body, the number of segments and the diverticulum. litoralis has been shown to be a luciferin-luciferase type reaction triggered by hydrogen peroxide, with a fluorescence compound acting as a light emitter 7, although the chemical structure of the luciferin remains uncertain and the luciferase gene has not been determined. litoralis (Grube, 1855) is distributed on the tropical and subtropical coasts of the Atlantic, Indian and Pacific Oceans 1, 2, 3 and is known to be bioluminescent 4, 5, 6, 7. The earthworm genus Pontodrilus Perrier, 1874, displays various unique characteristics. ![]() Our findings provide insight into the possible functions of bioluminescence in earthworms, such as avoiding predation by littoral earwigs. The presence of both luminous and nonluminous species in a single genus is likely widespread, but only a few examples have been confirmed. litoralis has luminescence abilities due to the creation of bioluminescent components (i.e., luciferin, luciferase, and light emitters). litoralis had strong fluorescence that matched the spectral maximum of its bioluminescence, but the same result was not observed for P. In vitro cross-reaction tests between these species revealed the absence of luciferin and luciferase activities in P. litoralis, as reported previously, but not in P. ![]() Mechanical stimulation induced in vivo luminescence in P. In this study, we examined the in vivo and in vitro bioluminescent properties of P. These species are sympatric, but their burrowing depths on Thai beaches are different. Recently, a congeneric species, Pontodrilus longissimus, from Thailand was described. Pontodrilus litoralis is a cosmopolitan littoral earthworm known to exhibit bioluminescence.
0 Comments
Leave a Reply. |