Uromyces turcomanicus
| Uromyces turcomanicus | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Uromyces turcomanicus | ||||||||||||
| Katajev |
Uromyces turcomanicus is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is a endoparasite of grape hyacinths and Bellevalius TYPES well as Brachyelytrum - and Leersia - grasses . Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. It is common in south-western Asia.
features
Macroscopic features
Uromyces turcomanicus 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 Uromyces turcomanicus grows as with all Uromyces TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. The cylindrical aecia of the species grow in groups and have 19-25 × 15-20 µm large, hyaline aeciospores with a warty surface. The uredia of the fungus grow on both sides of the host leaves and have sack-shaped, colorless paraphyses. Their light yellow to almost colorless uredospores are 24–32 × 19–25 µm in size, ellipsoidal to broadly ellipsoidal and spiky. The bilateral growing parts of the species are chocolate brown, powdery and exposed early. The dark golden to chestnut brown teliospores are unicellular, mostly angular ovoid, fingered at the tip and 18–24 × 14–20 µm in size. Their stem is up to 40 µm long.
distribution
The known distribution area of Uromyces turcomanicus extends from Iran to Israel and southern Russia .
ecology
The host plants of Uromyces turcomanicus are for the haploid grape hyacinth ( Muscari spp.) And Bellevalia TYPES and Boissiera pumilo , Festuca ovina , several Hordeum types, and Secale montanum for the dikaryotic . 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 spermogonia , Aecien, Telien and Uredien and completes a host change .
literature
- George Baker Cummins: The Rust Fungi of Cereals, Grasses and Bamboos . Springer, Berlin et al. 1971, ISBN 3-540-05336-0 .