Puccinia albulensis
| Puccinia albulensis | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Puccinia albulensis | ||||||||||||
| Magnus |
Puccinia albulensis is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of the Alpen-Ehrenpreis and other honorary awards . Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. It is common in Europe and the USA.
features
Macroscopic features
Puccinia albulensis can only be recognized with the naked eye by means of the spore beds emerging on the surface of the host. They grow in nests that appear as yellowish to brown spots and pustules on the leaf surfaces.
Microscopic features
The mycelium of Puccinia albulensis grows as with all Puccinia TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. Spermogonia and aecia of the species are absent. The same applies to uredia of the mushroom. The parts of the species that grow predominantly on the undersides of the leaves and stems of the host plants are cinnamon-brown and powdery to cushion-shaped. They flow together and often cover the entire surface of the leaf. The cinnamon-brown teliospores are two-celled, usually ellipsoidal to elongated, smooth to wrinkled and 26–46 × 11–18 µm in size. Their stem is colorless and up to 40 µm long.
distribution
The known distribution area of Puccinia albulensis includes the Nordic-Alpine Europe and the USA.
ecology
The host plants of Puccinia albulensis is Alpine Speedwell ( Veronica alpina ) in Europe. In the USA, various types are attacked by the honorary awards. The fungus feeds on the nutrients present in the storage tissue of the plants, its spore beds later break through the leaf surface and release spores. The species has a microcyclic development cycle that includes only Telia and does not include Aecia, Spermogonia and Uredia.
literature
- Malcolm Wilson, Douglas Mackay Henderson: British Rust Fungi . Cambridge University Press , 1966.
Individual evidence
- ↑ a b D.F. Farr, AY Rossman: Puccinia albulensis Magnus 1890. (No longer available online.) Fungal Databases, Systematic Mycology and Microbiology Laboratory, ARS, USDA, archived from the original on March 4, 2016 ; Retrieved May 6, 2013 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
