Orange spots of rust fungus Coleosporium ipomoeae on underside of a leaf of Ipomoea lacunosa at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas

🎞️ #3026-16

The image depicts a close-up photograph of an orange rust fungus growing on the underside of a leaf.

* The leaf is green with veins that are visible through the translucent surface.
* The leaf appears to be part of a plant in the morning glory family (Convolvulaceae).
* The leaves have three distinct lobes and are arranged oppositely along the stem.
* The leaf exhibits a characteristic shape and arrangement typical of the Ipomoea genus, which includes morning glories, sweet potatoes, and related plants.

* The orange spots covering the underside of the leaf are caused by the rust fungus Coleosporium ipomoeae.
* The fungus is a type of parasitic organism that infects plants and causes disease.
* Rust fungi typically produce spores in specialized structures called telia, which rupture to release spores into the environment.
* These spores are carried by wind or water to new hosts, where they germinate and infect the plant.

* The orange coloration of the rust fungus is due to the presence of pigments such as carotenoids and xanthophylls.
* These pigments help protect the fungus from excessive sunlight and provide a means for it to absorb light energy necessary for photosynthesis.
* The bright orange hue of the rust spots makes them highly visible on the leaf surface, allowing for easy detection by humans.

In summary, the image shows an infestation of Coleosporium ipomoeae rust fungus on the underside of an Ipomoea lacunosa leaf. – AI vision

🇪🇸 Descripción en español / Spanish Description

Muestra manchas naranjas del hongo de la roya Coleosporium ipomoeae en el lado inferior de una hoja de Ipomoea lacunosa en Lake Somerville Trailway cerca de Birch Creek Unit of Somerville Lake State Park. Texas, septiembre 19, 2021. La imagen muestra una fotografía en primer plano de un hongo naranja de la roya que crece en el lado inferior de una hoja. * La hoja es verde con venas que son visibles a través de la superficie translúcida. * La hoja parece ser parte de una planta de la familia de las mañanas gloriosas (Convolvulaceae). * Las hojas tienen tres lóbulos distintos y están dispuestas opuestamente a lo largo del tallo. * La hoja presenta una forma y disposición características típicas del género Ipomoea, que incluye glorias de la mañana, batatas dulces y plantas relacionadas. * Las manchas naranjas que cubren el lado inferior de la hoja están causadas por el hongo de la roya Coleosporium ipomoeae. * El hongo es un tipo de organismo parasitario que infecta plantas y causa enfermedades. * Los hongos de la roya generalmente producen esporas en estructuras especializadas llamadas telios, que se rompen para liberar esporas al medio ambiente. * Estas esporas son transportadas por el viento o el agua a nuevos anfitriones, donde germinan e infectan la planta. * La coloración naranja del hongo de la roya se debe a la presencia de pigmentos como los carotenoides y las xantofilas. * Estos pigmentos ayudan a proteger al hongo del exceso de luz solar y proporcionan un medio para absorber la energía luminosa necesaria para la fotosíntesis. * El brillante matiz naranja de las manchas de la roya lo hace altamente visible en la superficie de la hoja, permitiendo una fácil detección por los seres humanos. En resumen, la imagen muestra una infestación de Coleosporium ipomoeae hongo de la roya en el lado inferior de una hoja de Ipomoea lacunosa. – Spanish translation

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