Puccinia andropogonicola
| Puccinia andropogonicola | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Puccinia andropogonicola | ||||||||||||
| Hariot & Patouillard |
Puccinia andropogonicola is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of the Hyparrhenia and Cymbopogon species. Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. It isnative tolarge parts of Africa .
features
Macroscopic features
Puccinia andropogonicola can only be recognized with the naked eye by 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 andropogonicola 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 dark cinnamon-brown uredia of the fungus grow on the underside of the leaf surfaces of the host plant. Their cinnamon - brown uredospores are oval to ovate, 29–35 × 20–26 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 ellipsoid to narrow ellipsoid and 40–56 × 22–27 µm in size; their stalk is hyaline and up to 150 µm long.
distribution
The known distribution area of Puccinia andropogonicola includes Ethiopia , Mauritius , Ghana and the Republic of the Congo .
ecology
The host plants of Puccinia andropogonicola are various Hyparrhenia and Cymbopogon 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 .