Puccinia agropyri-ciliaris
| Puccinia agropyri-ciliaris | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Puccinia agropyri-ciliaris | ||||||||||||
| Tai & Wei |
Puccinia agropyri-ciliaris is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of crested curls and bluegrass . Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. It is common in East Asia.
features
Macroscopic features
Puccinia agropyri-ciliaris 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 agropyri-ciliary grows as with all Puccinia TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. Aecia or spermogonia of the species are not known. The yellow-brown uredia of the fungus grow on both sides, mostly on top of the host leaves. Its yellowish uredospores are 22–26 × 18–22 µm in size, mostly broadly ellipsoidal and finely spiky. The parts of the species that grow on the top of the leaves are waxy and uncovered early. The hazelnut-brown teliospores are two-celled, cylindrical to cylindrical-spindle-shaped and 40–60 × 9–12 µm in size. Their stem is colorless and up to 25 µm long.
distribution
The known distribution area of Puccinia agropyri-ciliaris includes China , Korea and Japan .
ecology
The host plants of Puccinia agropyri-ciliaris are Agropyron ciliare , A. tsukushiense and Poa achroleuca . 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 of which only Telien and Uredien and their host are known; Spermogonia and aecia could not be assigned to the fungus.
literature
- George Baker Cummins: The Rust Fungi of Cereals, Grasses and Bamboos . Springer, Berlin et al. 1971, ISBN 3-540-05336-0 .