Puccinia daisenensis
| Puccinia daisenensis | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Puccinia daisenensis | ||||||||||||
| Hiratsuka |
Puccinia daisenensis is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of Miscanthus olygostachius . Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. She is endemic to Japan .
features
Macroscopic features
Puccinia daisenensis can only be recognized by the naked eye from the spore beds emerging 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 daisenensis grows as with all Puccinia TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. Aecia are not known of this species. The cinnamon-brown uredia grow on the underside of the host's leaves. Their cinnamon - brown uredospores are usually oval to ovate, 26–33 × 19–23 µm in size and finely spiky. The parts of the species are black-brown, exposed early and compact. The hazelnut-brown teliospores are two-celled, usually long, club-shaped and 35–56 × 15–22 µm in size; their stalk is brown and up to 15 µm long.
distribution
The known distribution area of Puccinia daisenensis only includes Japan .
ecology
The host plant of Puccinia daisenensis is Miscanthus olygostachius . 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 .