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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Naturally occurring fluorescence in frogs

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Author(s):
Taboada, Carlos ; Brunetti, Andres E. ; Pedron, Federico N. ; Neto, Fausto Carnevale ; Estrin, Dario A. ; Bari, Sara E. ; Chemes, Luca B. ; Lopes, Norberto Peporine ; Lagorio, Maria G. ; Faivovich, Julian
Total Authors: 10
Document type: Journal article
Source: Proceedings of the National Academy of Sciences of the United States of America; v. 114, n. 14, p. 3672-3677, APR 4 2017.
Web of Science Citations: 25
Abstract

Fluorescence, the absorption of short-wavelength electromagnetic radiation reemitted at longer wavelengths, has been suggested to play several biological roles in metazoans. This phenomenon is uncommon in tetrapods, being restricted mostly to parrots and marine turtles. We report fluorescence in amphibians, in the tree frog Hypsiboas punctatus, showing that fluorescence in living frogs is produced by a combination of lymph and glandular emission, with pigmentary cell filtering in the skin. The chemical origin of fluorescence was traced to a class of fluorescent compounds derived from dihydroisoquinolinone, here named hyloins. We show that fluorescence contributes 18-29% of the total emerging light under twilight and nocturnal scenarios, largely enhancing brightness of the individuals andmatching the sensitivity of night vision in amphibians. These results introduce an unprecedented source of pigmentation in amphibians and highlight the potential relevance of fluorescence in visual perception in terrestrial environments. (AU)

FAPESP's process: 13/50741-7 - Diversity and conservation of Brazilian amphibians
Grantee:Célio Fernando Baptista Haddad
Support type: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 12/10000-5 - A multi-disciplinary approach to the study of amphibian diversification
Grantee:Taran Grant
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 14/12343-2 - Method development and prospection studies of marine biological resources with citotoxic potential based on systems biology
Grantee:Fausto Carnevale Neto
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 14/20915-6 - Chemical ecology in anurans: characterization of volatile compounds and peptide pheromones from the skin secretions of frogs
Grantee:Andrés Eduardo Brunetti
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 14/50265-3 - Distribution and metabolism of natural and synthetic xenobiotics: from the comprehension of reactional process to tissue imaging generation
Grantee:Norberto Peporine Lopes
Support type: BIOTA-FAPESP Program - Thematic Grants