Puccinia phyllostachydis
| Puccinia phyllostachydis | ||||||||||||
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Puccinia phyllostachydis |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Puccinia phyllostachydis | ||||||||||||
| Kusano |
Puccinia phyllostachydis is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of the Phyllostachis species. 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 northern Pacific and North America .
features
Macroscopic features
Puccinia phyllostachydis 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 phyllostachydis 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 uredia are colored cinnamon brown and grow on the underside of the leaf on the surface of the host plant. Their dark cinnamon - brown uredospores are broadly ovate to broadly oval, 28–34 × 22–26 µm in size and finely spiky. The parts of the species are black-brown, exposed early and compact. The hazel-brown teliospores are two-celled, usually ellipsoidal to club-shaped ellipsoidal and 40–50 × 19–22 µm in size; their stalk is brownish and up to 85 µm long.
distribution
The known distribution area of Puccinia phyllostachydis extends from Japan and China to Hawaii and the southeastern USA .
ecology
The host plants of Puccinia phyllostachydis are different Phyllostachys 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 has a development cycle of which only Telien and their host are known; Uredien, Spermogonia and Aecien 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 .
