Puccinia aeluropodis
| Puccinia aeluropodis | ||||||||||||
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| Puccinia aeluropodis | ||||||||||||
| Ricker |
Puccinia aeluropodis is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of the soap tree-like nitraria and the sweet grass genus Aeluropus . Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. It is common in the southern Palearctic .
features
Macroscopic features
Puccinia aeluropodis 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 aeluropodis grows as with all Puccinia TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. The cylindrical aecia of the species have 14-20 × 12-16 µm large, angular-spherical, hyaline aeciospores with a warty surface. The yellow-brown uredia of the fungus grow on both sides of the host leaves. Their golden or cinnamon-brown uredospores are 24–30 × 22–26 µm in size, spherical to broadly ellipsoidal and warty. The bilateral growing parts of the species are black-brown, powdery and exposed early. The brown teliospores are two-celled, oblong ovoid to long ellipsoid and 38–48 × 22–28 µm in size. Their stem is colorless and up to 125 µm long.
distribution
The known distribution area of Puccinia aeluropodis extends from China to the Mediterranean .
ecology
The host plants of Puccinia aeluropodis are for the Haplonten Nitraria species and various Aeluropus 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, Aecien and Spermogonia and changes host.
literature
- George Baker Cummins: The Rust Fungi of Cereals, Grasses and Bamboos . Springer, Berlin et al. 1971, ISBN 3-540-05336-0 .