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Abstract:

A quantitative evaluation of the light emerging from intact petals of Rhododendron indicum flowers of different colours was performed. Reflectance and fluorescence emission were analyzed in detail. The fluorescence quantum yield of petals was determined on entire flowers. The obtained values varied from 7.6 × 10-5 to 6.3 × 10-4 for the emission in the blue region of the electromagnetic spectrum and from 2.4 × 10-5 to 1.9 × 10-4 for the emission in the red one. The fluorescence emission that resulted was negligible compared to the light reflected by the petals, so it was concluded that in this case only reflectance signals should be relevant in biosignal communication with pollinators. In addition, a quantitative estimation of the relative amount of photons absorbed by eye photoreceptors was achieved. Quantum catches were calculated for humans, for honeybees and for a species of bird. Contrasts to background values were also estimated in relation to the ability to detect flowers. © 2010 The Royal Society of Chemistry and Owner Societies.

Registro:

Documento: Artículo
Título:Implications of reflectance and fluorescence of Rhododendron indicum flowers in biosignaling
Autor:Iriel, A.; Lagorio, M.G.
Filiación:INQUIMAE/Dpto. de Química Inorgánica, Analítica y Qca. Física, Ciudad Universitaria, Pabellón II 1er piso, C1428EHA Buenos Aires, Argentina
Palabras clave:animal; animal behavior; article; bee; bird; chemistry; color vision; flower; fluorescence; human; physiology; Rhododendron; Animals; Bees; Behavior, Animal; Birds; Color Vision; Flowers; Fluorescence; Humans; Rhododendron; Apis mellifera; Aves; Rhododendron; Rhododendron indicum
Año:2010
Volumen:9
Número:3
Página de inicio:342
Página de fin:348
DOI: http://dx.doi.org/10.1039/b9pp00104b
Título revista:Photochemical and Photobiological Sciences
Título revista abreviado:Photochem. Photobiol. Sci.
ISSN:1474905X
CODEN:PPSHC
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1474905X_v9_n3_p342_Iriel

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Citas:

---------- APA ----------
Iriel, A. & Lagorio, M.G. (2010) . Implications of reflectance and fluorescence of Rhododendron indicum flowers in biosignaling. Photochemical and Photobiological Sciences, 9(3), 342-348.
http://dx.doi.org/10.1039/b9pp00104b
---------- CHICAGO ----------
Iriel, A., Lagorio, M.G. "Implications of reflectance and fluorescence of Rhododendron indicum flowers in biosignaling" . Photochemical and Photobiological Sciences 9, no. 3 (2010) : 342-348.
http://dx.doi.org/10.1039/b9pp00104b
---------- MLA ----------
Iriel, A., Lagorio, M.G. "Implications of reflectance and fluorescence of Rhododendron indicum flowers in biosignaling" . Photochemical and Photobiological Sciences, vol. 9, no. 3, 2010, pp. 342-348.
http://dx.doi.org/10.1039/b9pp00104b
---------- VANCOUVER ----------
Iriel, A., Lagorio, M.G. Implications of reflectance and fluorescence of Rhododendron indicum flowers in biosignaling. Photochem. Photobiol. Sci. 2010;9(3):342-348.
http://dx.doi.org/10.1039/b9pp00104b