Naturally occurring fluorescence in frogs
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 amp...
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todo:paper_00278424_v114_n14_p3672_Taboada2023-10-03T14:38:14Z Naturally occurring fluorescence in frogs Taboada, C. Brunetti, A.E. Pedron, F.N. Neto, F.C. Estrin, D.A. Bari, S.E. Chemese, L.B. Lopes, N.P. Lagorio, M.G. Faivovich, J. Amphibia Anura Fluorophore Hylidae Visual ecology biliverdin fluorescent dye isoquinoline derivative adult animal cell animal tissue Anura Article blue light brightness chromatophore controlled study crystal dark adaptation female fluorescence Hypsiboas punctatus illumination male nonhuman photon pigmentation priority journal quantum yield skin sensitivity animal Anura chemistry fluorescence lymph night vision nuclear magnetic resonance spectroscopy physiology skin Animals Anura Fluorescence Lymph Magnetic Resonance Spectroscopy Night Vision Skin 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 and matching 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. Fil:Taboada, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Estrin, D.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bari, S.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Lagorio, M.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Faivovich, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00278424_v114_n14_p3672_Taboada |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Amphibia Anura Fluorophore Hylidae Visual ecology biliverdin fluorescent dye isoquinoline derivative adult animal cell animal tissue Anura Article blue light brightness chromatophore controlled study crystal dark adaptation female fluorescence Hypsiboas punctatus illumination male nonhuman photon pigmentation priority journal quantum yield skin sensitivity animal Anura chemistry fluorescence lymph night vision nuclear magnetic resonance spectroscopy physiology skin Animals Anura Fluorescence Lymph Magnetic Resonance Spectroscopy Night Vision Skin |
| spellingShingle |
Amphibia Anura Fluorophore Hylidae Visual ecology biliverdin fluorescent dye isoquinoline derivative adult animal cell animal tissue Anura Article blue light brightness chromatophore controlled study crystal dark adaptation female fluorescence Hypsiboas punctatus illumination male nonhuman photon pigmentation priority journal quantum yield skin sensitivity animal Anura chemistry fluorescence lymph night vision nuclear magnetic resonance spectroscopy physiology skin Animals Anura Fluorescence Lymph Magnetic Resonance Spectroscopy Night Vision Skin Taboada, C. Brunetti, A.E. Pedron, F.N. Neto, F.C. Estrin, D.A. Bari, S.E. Chemese, L.B. Lopes, N.P. Lagorio, M.G. Faivovich, J. Naturally occurring fluorescence in frogs |
| topic_facet |
Amphibia Anura Fluorophore Hylidae Visual ecology biliverdin fluorescent dye isoquinoline derivative adult animal cell animal tissue Anura Article blue light brightness chromatophore controlled study crystal dark adaptation female fluorescence Hypsiboas punctatus illumination male nonhuman photon pigmentation priority journal quantum yield skin sensitivity animal Anura chemistry fluorescence lymph night vision nuclear magnetic resonance spectroscopy physiology skin Animals Anura Fluorescence Lymph Magnetic Resonance Spectroscopy Night Vision Skin |
| description |
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 and matching 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. |
| format |
JOUR |
| author |
Taboada, C. Brunetti, A.E. Pedron, F.N. Neto, F.C. Estrin, D.A. Bari, S.E. Chemese, L.B. Lopes, N.P. Lagorio, M.G. Faivovich, J. |
| author_facet |
Taboada, C. Brunetti, A.E. Pedron, F.N. Neto, F.C. Estrin, D.A. Bari, S.E. Chemese, L.B. Lopes, N.P. Lagorio, M.G. Faivovich, J. |
| author_sort |
Taboada, C. |
| title |
Naturally occurring fluorescence in frogs |
| title_short |
Naturally occurring fluorescence in frogs |
| title_full |
Naturally occurring fluorescence in frogs |
| title_fullStr |
Naturally occurring fluorescence in frogs |
| title_full_unstemmed |
Naturally occurring fluorescence in frogs |
| title_sort |
naturally occurring fluorescence in frogs |
| url |
http://hdl.handle.net/20.500.12110/paper_00278424_v114_n14_p3672_Taboada |
| work_keys_str_mv |
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1807319503187476480 |