Urocystis primulae
| Urocystis primulae | |
|---|---|
 | |
| Conidia are visible as a white powder around the anthers of a dissected flower of Primula vulgaris. | |
Scientific classification  | |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Ustilaginomycetes |
| Order: | Urocystidales |
| Family: | Urocystidiaceae |
| Genus: | Urocystis |
| Species: | U. primulae |
| Binomial name | |
| Urocystis primulae (Rostrup) Vánky, 1985 | |
| Synonyms | |
| Ginanniella primulae (Rostrup) Ciferri, 1938 | |
Urocystis primulae is a fungal plant pathogen that infects several species of Primula.[1]
The fungus affects the flowers of the plant, turning the contents of the ovary into a mass of spore balls: clumps of ustilospores wrapped in a layer of sterile cells.[1] It also produces white, powdery conidia in the anthers.[2]
Gallery
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A dissected flower of Primula vulgaris infected with Urocystis primulae. Conidia are visible as a white powder around the anthers and ustilospores as a blackish brown mass in the ovary. -
Spore balls of Urocystis primulae under the microscope. These are the ustilospores visible in the ovary in the image above. -
Ustilospores of Urocystis primulae in the fruit of Primula veris. -
Conidia are visible in a thrum-eyed flower of Primula vulgaris.
References
- ^ a b "Urocystis primulae (Rostrup) Vánky, 1985". Plant parasites of Europe. Retrieved 11 May 2024.
- ^ Woods, R. G., Chater, A. O., Smith, P. A., Stringer, R. N., Evans, D. A. (2018). Smut and allied fungi of Wales: a guide, red data list and census catalogue. A. O. Chater. ISBN 978-0-9565750-2-9.