Puccinia sporoboli
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| Puccinia sporoboli | ||||||||||||
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Puccinia sporoboli is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of leeks and lilies as well as of sporobolus - 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 the eastern United States .
features
Macroscopic features
Puccinia sporoboli 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 sporoboli 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 spherical to elongated, 21–25 × 18–21 µm large aeciospores with a wrinkled surface. The cinnamon-brown uredia of the species grow on both sides of the leaves of the host plants. Their cinnamon - brown uredospores are irregularly ellipsoidal to ovoid, 26–30 × 24–28 µm in size and finely spiky. The bilateral growing parts are blackish, uncovered early and small. The hazelnut-brown teliospores are one to two-celled, long ellipsoidal to narrowly ovate and 30–44 × 17–21 µm in size; their stalk is yellowish and up to 50 µm long.
distribution
The known distribution area of Puccinia sporoboli includes the eastern United States .
ecology
The host plants of Puccinia sporoboli are leeks and lilies for the haplonts and Sporobolus species for the dikaryotes . 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 .