Spores (in Congo Red) of sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) from white spots on leaves of squaw-weed (Senecio ampullaceus) collected on Yaupon Loop Trail in Lick Creek ParkWeb page of Lick Creek Park by Dept. of Biology of TAMU. College Station, Texas

🎞️ #3473-32

The image presents a microscopic view of spores from the sunflower white rust fungus (Pustula tragopogonis), characterized by their distinctive shape and coloration.

**Spore Description**

* The spores are circular to slightly elliptical in shape.
* They exhibit a reddish-brown hue, likely due to staining with Congo Red dye, which is commonly used in microscopy to visualize fungal structures.

**Background and Context**

* The background of the image appears to be a light-colored surface or substrate, possibly a leaf cell wall.
* The presence of the fungus on leaves of squaw-weed (Senecio ampullaceus) suggests that this plant may be a host for the Pustula tragopogonis fungus.

**Overall Impression**

The image provides a detailed view of the spores of the sunflower white rust fungus, highlighting their shape, size, and coloration. The presence of these spores on leaves of squaw-weed suggests that this plant may be susceptible to infection by the Pustula tragopogonis fungus. – AI vision

🇪🇸 Descripción en español / Spanish Description

Las esporas (en rojo Congo) del hongo del mildiú polvoriento del girasol, Pustula tragopoginisa (Pustula obtusata, Albugo tragopoginis)(?), de las manchas blancas en hojas de hierba amarga (Senecio ampullaceus) recolectadas en el Yaupon Loop Trail en Lick Creek Park. College Station, Texas, 17 de febrero del 2024. La imagen muestra una vista microscópica de esporas del hongo del mildiú polvoriento del girasol (Pustula tragopoginis), caracterizado por su forma y coloración distintivas. **Descripción de las Es poras** * Las esporas tienen forma circular a ligeramente elíptica. * Muestran un matiz marrón rojizo, probablemente debido a la tinción con colorante Rojo Congo, que se utiliza comúnmente en microscopía para visualizar estructuras fúngicas. **Antecedentes y contexto** * El fondo de la imagen parece ser una superficie o sustrato de color claro, posiblemente una pared celular foliar. * La presencia del hongo en las hojas de hierba amarga (Senecio ampullaceus) sugiere que esta planta puede ser anfitriona para el hongo Pustula tragopoginis. **Impresión general** La imagen proporciona una vista detallada de las esporas del hongo del mildiú polvoriento del girasol, resaltando su forma, tamaño y coloración. La presencia de estas esporas en las hojas de hierba amarga sugiere que esta planta puede ser susceptible a la infección por el hongo Pustula tragopoginis. – Spanish translation

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