One! - a photo on Flickriver

One!

I always collect the beautiful bright red seeds of my African Coral Tree (Erythrina lysistemon).

Under 365nm Ultraviolet light, one seed stood out as it fluoresces in a different wavelength of light.

About Fluorescence:
Fluorescence is the phenomenon of absorption of electromagnetic radiation, typically from ultraviolet light, by a molecule and the subsequent emission of a photon at a lower energy (smaller frequency, longer wavelength).

The "why?" explanation:
The fluorescence of young seeds under UV light is often attributed to the presence of certain compounds, such as flavonoids or other phenolic compounds, which can absorb UV light and emit light at longer wavelengths, often in the visible range. These compounds may serve various functions in the seed, such as protection against UV damage or signaling for seed dispersal.

UV Lighting:
365nm Adaptalux UV Lighting Arm camera mounted on a Mini Pod:
Adaptalux Modular Macro Lighting System.

Flickr Explore:
2024-05-12

Martin
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Taken on: May 11, 2024

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African Coral Tee

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Martin Heigan

11 May 2024

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Ultraviolet-induced visible fluorescence

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Sets appears in: • Nature Photography Showcase (by Martin Heigan) • Macro Photography more » • UVIVF Photography • Most Viewed « less

Groups appears in: • Macro • Artistic Photography more » • Macro Photography • Macro 1-2-3 (2/day max) • Botanicals • LIGHT [directory] 光 • Art by Nature • 1-2-3 Nature • Scientist Photographers • UltraViolet • The World Through My Eyes ... • The World Up-Close (Nature Macro) • **A Big Fave (INVITE ONLY PLEASE) • The Art of Science • Ultraviolet Spectrum <400nm • Science in pictures • MAGIC OF A WORLD IN MACRO/add 1 comment on 2 • Macro! Macro!! Macro!!! • MACRO MIX ( Post 1 - Comment 5.) Comment On Any Five Please!!! • " Art of the Light " ☆☆☆☆☆ • macro photographers • Official National Geographic Group • "IQ" - Image Quality • Nikon flickr Award (Post 1 - Award 3) • The Light Painters Society • NATURE'S PRIME (P1/A4) • For The Love Of Science! • Prestige Nature P1 C2 • Nikon Botanical, Botanical Garden & Arboretum • Botanical with Nature • in explore • The Dark Side Of The Light - No Second Life • Science and Nature • WONDERS OF PHOTOGRAPHY IN GENERAL.MARAVILLAS DE LA FOTOGRAFIA EN « less

Camera: Nikon D500, f/4.0, 1/10 sec, 60mm (=90mm), ISO 800 (more info) (hide info)

Camera:	Nikon D500
Aperture:	f/4.0
Exposure Time:	0.1 sec (1/10)
Focal Length:	60mm (35mm equivalent: 90mm)
ISO:	800
Exposure Bias:	0 EV
Flash:	No Flash
Exposure Program:	Manual
Exposure Mode:	Manual
Metering Mode:	Multi-segment
White Balance:	Auto
Scene Capture Type:	Landscape
Gain Control:	Low gain up
Color Space:	Uncalibrated
Software:	Adobe Photoshop CS6 (Windows)
Show full info

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