Puccinia crassiapicalis
| Puccinia crassiapicalis | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Puccinia crassiapicalis | ||||||||||||
| Bubák |
Puccinia crassiapicalis is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of the sweet grass Spodiopogon pogonatherus . Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. She is endemic to Turkey .
features
Macroscopic features
Puccinia crassiapicalis 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 crassiapicalis 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 same applies to the uredia of the fungus. Their golden to cinnamon brown uredospores are 23–30 × 19–25 µm in size, spherical to oval and finely wrinkled. The parts of the species growing underneath the leaves are black-brown, powdery and exposed early. The chestnut-brown teliospores are two-celled, spindle-shaped to ellipsoid and 40–56 × 19–27 µm in size. The stem is colorless to yellowish and up to 100 µm long.
distribution
The known distribution area of Puccinia crassiapicalis only includes Turkey .
ecology
The host plant of Puccinia crassiapicalis 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 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 .