Puccinia arthraxonis ciliaris
| Puccinia arthraxonis ciliaris | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Puccinia arthraxonis ciliaris | ||||||||||||
| Cummins |
Puccinia arthraxonis-ciliaris is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of the Arthraxon species. Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. It occurs from East Africa via Mauritius to New Guinea.
features
Macroscopic features
Puccinia arthraxonis-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 arthraxonis-ciliary grows as with all Puccinia TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. Aecia of the species are not yet known. The yellow to yellow-brown uredia grow on the underside of the host's leaves. Their yellow - brown uredospores are oval to ovate, 23–30 × 18–23 µm in size and finely spiky. The parts of the species are black-brown, exposed early and compact, they grow underneath the leaves. The hazelnut-brown teliospores are two-celled, usually elongated, club-shaped and 38–48 × 20–25 µm in size; their stalk is brown and up to 20 µm long.
distribution
The known distribution area of Puccinia arthraxonis-ciliaris includes Uganda , Mauritius , India , China , Japan , the Philippines and New Guinea .
ecology
The host plants of Puccinia arthraxonis-ciliaris are different Arthraxon species. 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 apparently has a development cycle with Telien and Uredien, which manages without change of host; Spermogonia and aecia are apparently absent.
literature
- George B. Cummins: The Rust Fungi of Cereals, Grasses and Bamboos . Springer, Berlin 1971, ISBN 3-540-05336-0 .