Section of a false truffle (Rhizopogon) with a parasitic fungus Hypomyces chrysospermus in ultraviolet light from Richards Loop Trail in Sam Houston National Forest near Montgomery. Texas

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Sam Houston Forest, Texas, September 6, 2024

Album 3615: Sam Houston Forest, Texas, September 6, 2024

The image shows an ultraviolet (UV) photograph of a sectioned false truffle (Rhizopogon) with a parasitic fungus Hypomyces chrysospermus.

The false truffle is roughly egg-shaped and has been cut down the middle, revealing its interior. The top half is white or light yellow, while the bottom half is dark brown. The fungal infection appears as an irregularly shaped dark area at the center of the lower section.

In UV illumination, some parts of the mushroom glow a bright yellow color. This phenomenon occurs when certain molecules in the organism absorb blue and ultraviolet light from the surrounding environment and emit it back as yellow or greenish-yellow light.

The background is black, suggesting that the image was taken under controlled laboratory conditions with an appropriate filter to enhance the visibility of the UV light. – AI vision

🇪🇸 Descripción en español / Spanish Description

Sección de una trufa falsa (Rhizopogon) con un hongo parásito Hypomyces chrysospermus en luz ultravioleta del Richards Loop Trail en el Bosque Nacional Sam Houston cerca de Montgomery. Texas, septiembre 6, 2024. La imagen muestra una fotografía en ultravioleta (UV) de una sección de trufa falsa (Rhizopogon) con un hongo parásito Hypomyces chrysospermus. La trufa falsa tiene aproximadamente forma de huevo y ha sido cortada por la mitad, revelando su interior. La mitad superior es blanca o amarilla clara, mientras que la mitad inferior es marrón oscuro. La infección fúngica aparece como una zona oscura con forma irregular en el centro de la sección inferior. En iluminación ultravioleta, algunas partes del hongo emiten un color amarillo brillante. Este fenómeno ocurre cuando determinadas moléculas del organismo absorben luz azul y ultravioleta del entorno circundante y la emiten de nuevo como luz amarilla o verdosa-amarillenta. El fondo es negro, lo que sugiere que la imagen se tomó en condiciones controladas de laboratorio con un filtro apropiado para mejorar la visibilidad de la luz UV. – Spanish translation

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