Puccinia agropyricola
| Puccinia agropyricola | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Puccinia agropyricola | ||||||||||||
| Westendorp |
Puccinia agropyricola is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of the meadow rue Thalictrum thunbergii as well as of Brachypodium sylvaticum and Agropyron - sweet grasses . Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. It occurs in East Asia .
features
Macroscopic features
Puccinia agropyricola can only be recognized with the naked eye by means of the spore beds protruding 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 agropyricola grows as with all Puccinia TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. The aecia of the species have not yet been described in detail. The orange uredia of the species mostly grow on the top of the leaves of the host plant. Their colorless to yellow uredospores are usually broadly ellipsoidal, 20-25 × 17-20 µm in size and finely spiky. The parts of the species growing on both or the lower leaf sides are black-brown and long covered. The hazelnut-brown teliospores of the fungus are two- to three-celled and irregularly septate, usually oblong and 30–46 × 16–22 µm in size. Their stalk is brown and up to 10 µm long.
distribution
The known distribution area of Puccinia agropyricola includes Japan , Korea and Manchuria .
ecology
The host plants of Puccinia agropyricola for the Haplonts are the meadow rue Thalictrum thunbergii and Brachypodium sylvaticum and Agropyron species for the dikaryote . 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 development cycle with Telien, Uredien, Spermogonia and Aecien and changes host.
literature
- George Baker Cummins: The Rust Fungi of Cereals, Grasses and Bamboos . Springer, Berlin 1971, ISBN 3-540-05336-0 .