Uromyces procerus
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| Scientific name | ||||||||||||
| Uromyces procerus | ||||||||||||
| Lindquist |
Uromyces procerus is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of the sweet grass Festuca procera . Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. She is endemic to Chile .
features
Macroscopic features
Uromyces procerus can only be recognized by the naked eye from 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 Uromyces procerus grows as with all Uromyces TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. The spermogonia and aecia of the species are not known, the same applies to the uredia of the fungus. The parts of the species growing on the top of the leaves are dark brown and exposed early. The golden to yellowish teliospores are unicellular, usually long ellipsoid and 42–65 × 16–19 µm in size. Their stem is up to 130 µm long.
distribution
The known distribution area of Uromyces procerus only includes Chile .
ecology
The host plant of Uromyces procerus is the fescue Festuca procera . 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 goes through a development cycle of which only Telien and their host are known; Uredien, Spermogonia and Aecien or corresponding spores could not be assigned to it.
literature
- George Baker Cummins: The Rust Fungi of Cereals, Grasses and Bamboos . Springer, Berlin 1971, ISBN 3-540-05336-0 .