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Study on the bioluminescence of Chaetopterus variopedatus (Annelida, Polychaeta) and the search for new marine bioluminescent systems

Grant number: 15/25834-7
Support type:Regular Research Grants
Duration: March 01, 2016 - February 28, 2018
Field of knowledge:Biological Sciences - Biophysics - Radiology and Photobiology
Principal researcher:Anderson Garbuglio de Oliveira
Grantee:Anderson Garbuglio de Oliveira
Home Institution: Instituto Oceanográfico (IO). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

Bioluminescence, the emission of cold and visible light by living beings, is an extremely important biological process. The vast majority of bioluminescent organisms live in the ocean, and of the more than 700 genera known to contain luminous species, 80% are marine. From polar to tropical environments these organisms occupy a diverse range of habitats from surface waters throughout the ocean down to the sea floor. Different chemical mechanisms and a wide range of phylogenetic distributions in these luminescent organisms show its ecological advantages. However, the origins, functions and the chemical nature of some bioluminescent systems still remain unclear.Among some of those poorly understood bioluminescent mechanisms, is the marine annelid Chaetopterus variopedatus. The luminescent reactions reported in vitro for this annelid are slower and less efficient when compared to their natural bioluminescence. The true intrinsic activation factor in their luminescence is still undetermined.This project aims to isolate and characterize the luciferin and photoprotein involved in the light emission mechanism of the annelid C. variopedatus. In addition, new bioluminescent systems from organisms collected on the Brazilian coast will also be investigated. (AU)

Articles published in Agência FAPESP Newsletter about the research grant:
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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
OBA, YUICHI; STEVANI, CASSIUS V.; OLIVEIRA, ANDERSON G.; TSARKOVA, ALEKSANDRA S.; CHEPURNYKH, TATIANA V.; YAMPOLSKY, ILIA V. Selected Least Studied but not Forgotten Bioluminescent Systems. Photochemistry and Photobiology, v. 93, n. 2, p. 405-415, MAR-APR 2017. Web of Science Citations: 9.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.