Puccinia sasicola
| Puccinia sasicola | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Puccinia sasicola | ||||||||||||
| Hara ex Hino |
Puccinia sasicola is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of false hazel and Sasa species. 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 sasicola 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 sasicola grows as with all Puccinia TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. The aecia of the species grow in wart-like galls on the underside of the leaves of the host, they have ellipsoidal to angular-spherical and hyaline aeciospores with a wrinkled surface, which are 25-30 × 20-24 µm in size. The light brown uredia of the fungus grow on both sides of the leaf surfaces of the host plant. Their yellow to light cinnamon - brown uredospores are broadly ovate, 26–30 × 20–24 µm in size and finely spiky. The parts of the species are brown, exposed early and compact. The golden to hyaline teliospores are two-celled, usually cylindrical-ellipsoidal and 90–125 × 16–22 µm in size; its stem is colorless and up to 200 µm long.
distribution
The known distribution area of Puccinia sasicola only includes Japan .
ecology
The host plants of Puccinia sasicola are different Sasa species as Haplont false hazel ( Corylopsis ) and as Dikaryont . 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 with Aecien, Spermogonia, Telien and Uredien and completes a host change.
literature
- George Baker Cummins: The Rust Fungi of Cereals, Grasses and Bamboos . Springer, Berlin 1971, ISBN 3-540-05336-0 .