Implications of reflectance and fluorescence of Rhododendron indicum flowers in biosignaling
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...
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2010
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1474905X_v9_n3_p342_Iriel http://hdl.handle.net/20.500.12110/paper_1474905X_v9_n3_p342_Iriel |
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paper:paper_1474905X_v9_n3_p342_Iriel2023-06-08T16:17:50Z Implications of reflectance and fluorescence of Rhododendron indicum flowers in biosignaling 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 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. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1474905X_v9_n3_p342_Iriel http://hdl.handle.net/20.500.12110/paper_1474905X_v9_n3_p342_Iriel |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
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 |
| spellingShingle |
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 Implications of reflectance and fluorescence of Rhododendron indicum flowers in biosignaling |
| topic_facet |
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 |
| description |
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. |
| title |
Implications of reflectance and fluorescence of Rhododendron indicum flowers in biosignaling |
| title_short |
Implications of reflectance and fluorescence of Rhododendron indicum flowers in biosignaling |
| title_full |
Implications of reflectance and fluorescence of Rhododendron indicum flowers in biosignaling |
| title_fullStr |
Implications of reflectance and fluorescence of Rhododendron indicum flowers in biosignaling |
| title_full_unstemmed |
Implications of reflectance and fluorescence of Rhododendron indicum flowers in biosignaling |
| title_sort |
implications of reflectance and fluorescence of rhododendron indicum flowers in biosignaling |
| publishDate |
2010 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1474905X_v9_n3_p342_Iriel http://hdl.handle.net/20.500.12110/paper_1474905X_v9_n3_p342_Iriel |
| _version_ |
1768544150233284608 |