Puccinia daniloi
| Puccinia daniloi | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Puccinia daniloi | ||||||||||||
| Bubák |
Puccinia daniloi is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of the sweet grass Erianthus hostii . Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. It occurs in south-east Europe .
features
Macroscopic features
Puccinia daniloi 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 daniloi 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 yellowish uredia of the fungus grow on the underside of the host leaves. They reach a length of 1 mm, but can also merge into conglomerates up to 3 mm long. Their golden to cinnamon-brown uredospores are 25–30 × 19–25 µm in size, spherical to oval and finely warty. The parts of the species growing underneath the leaves are black-brown, powdery and exposed early. The chestnut-brown teliospores are two-celled, club-shaped to long ellipsoid and 36–50 × 20–24 µm in size. Their stalk is colorless to yellowish and up to 80 µm long.
distribution
The known distribution area of Puccinia daniloi includes the area of the former Yugoslavia .
ecology
The host plant of Puccinia daniloi is Spodiopogon pogonatherus . 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 .