INVESTIGADORES
FAIVOVICH Julian
artículos
Título:
Naturally occurring fluorescence in frogs
Autor/es:
TABOADA, CARLOS; BRUNETTI, ANDRÉS E.; PEDRON, FEDERICO N.; CARNEVALE NETO, FAUSTO; ESTRIN, DARÍO A.; BARI, SARA E.; CHEMES, LUCÍA B.; PEPORINE LOPES, NORBERTO; LAGORIO, MARÍA G.; FAIVOVICH, JULIÁN
Revista:
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Editorial:
NATL ACAD SCIENCES
Referencias:
Año: 2017 vol. 114 p. 3672 - 3672
ISSN:
0027-8424
Resumen:
Fluorescence, the absorption of short-wavelength electromagneticradiation reemitted at longer wavelengths, has been suggested toplay several biological roles in metazoans. This phenomenon isuncommon in tetrapods, being restricted mostly to parrots andmarine turtles.We report fluorescence in amphibians, in the tree frogHypsiboas punctatus, showing that fluorescence in living frogs isproduced by a combination of lymph and glandular emission, withpigmentary cell filtering in the skin. The chemical origin of fluorescencewas traced to a class of fluorescent compounds derived fromdihydroisoquinolinone, here named hyloins. We show that fluorescencecontributes 18−29% of the total emerging light under twilightand nocturnal scenarios, largely enhancing brightness of the individualsandmatching the sensitivity of night vision in amphibians. Theseresults introduce an unprecedented source of pigmentation in amphibiansand highlight the potential relevance of fluorescence invisual perception in terrestrial environments.