+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Synergic effects of tryptamine and octopamine on ophiuroid luminescence (Echinodermata)

, : Synergic effects of tryptamine and octopamine on ophiuroid luminescence (Echinodermata). Journal of Experimental Biology 207(Pt 21): 3749-3756

In ophiuroids, bioluminescence is under nervous control. Previous studies have shown that acetylcholine is the main neurotransmitter triggering light emission in Amphipholis squamata and Amphiura filiformis. By contrast, none of the neurotransmitters tested so far induced luminescence in two other ophiuroid species, Ophiopsila aranea and Ophiopsila californica. The aim of this work was thus to investigate the putative involvement of two biogenic amines, tryptamine and octopamine, in light emission of three ophiuroid species. A. filiformis responds to both tryptamine and octopamine, mainly on its arm segments, while O. californica only responds to tryptamine stimulation. By contrast, tryptamine and octopamine do not seem to be involved in O. aranea luminescence control since none of these substances induced light emission in this species. The synergic effects of several other drugs with tryptamine and octopamine were also tested.


PMID: 15371482

DOI: 10.1242/jeb.01209

Other references

Arfel, G.; Leonardon, N.; Legendre, M.; Jedynak, P., 1975: Morphological characteristics of focal epileptic discharges, and their localizing value. Electroencephalography and Clinical Neurophysiology 39(5): 554-554

Rekhi, G.S.; DemarestDudley A.Jr.; Augsburger, L.L.; Schwartz, P.; Lesko, L.J., 1993: Evaluation of critical formulation and processing variables for metoprolol tartrate tablets using high-shear granulation-I. Pharmaceutical Research (New York) 10(10 SUPPL ): S134

Schulz, H., 2000: Papules on the skin. Morphologically and descriptively oriented dermatologic diagnosis (8). Mmw Fortschritte der Medizin 142(6): 44-45

Sunyang, Y.; Jiaxiu, X.; Hongxu, M.; Jiajia, L.; Lina, J.; Long, C.; Qinong, Y., 2016: Advances on the regulation of telomerase. Telomerase is composed of the catalytic subunit TERT (Telomerase reverse transcriptase),RNA subunit TERC (Telomerase RNA component) and other telomerase associated proteins. These two compartments with other telomerase subunits can assemble a holo...

Cochran, J.W.; Byrne, R.W., 1974: Isolation and properties of a ribosome bound factor required for guanine nucleoside poly phosphates synthesis in escherichia coli. Journal of Biological Chemistry 249(2): 353-360

Reim M.; Conze A.; Kaszuba H.J., 1982: Adenosine phosphate and glutathione levels in the regenerated corneal epithelium after abrasion and mild alkali burns. After scraping away the [rabbit] corneal epithelium or after mild alkali burn, the regeneration of the cellular layers on the stromal surface was observed clinically. The average regeneration time was 7 days after abrasion and 12 days after mild a...

Prescott, M., 1995: Exploring the possibilities. Health plans offer connections to better information through the World Wide Web. Hmo 37(1): 28-34

Nardell, B.E., 1973: The effect of thymectomy on the fatty acid concentration of plasma, liver and fat pads. Journal of the Baltimore College of Dental Surgery 28(1): 18-34

Udeh, B.; Udeh, C.; Graves, N., 2009: Perinatal HIV transmission and the cost-effectiveness of screening at 14 weeks gestation, at the onset of labour and the rapid testing of infants. Preventing HIV transmission is a worldwide public health issue. Vertical transmission of HIV from a mother can be prevented with diagnosis and treatment, but screening incurs cost. The U.S. Virgin Islands follows the mainland policy on antenatal s...

Nishimura, M.; Yoshida, S., 1993: Statistic survey of diabetes, insipidus, nephrogenic diabetes insipidus in Japan. Nihon Rinsho. Japanese Journal of Clinical Medicine 51 Suppl: 45-52