Uredo susica

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Uredo susica
Systematics
Subdivision : Pucciniomycotina
Class : Pucciniomycetes
Order : Rust mushrooms (Pucciniales)
Family : insecure position (incertae sedis)
Genre : Uredo
Type : Uredo susica
Scientific name
Uredo susica
Dietel & Neger

Uredo Susica is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of the sweet grass Dichanthium annulatum . Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. She is endemic to Morocco . Since only its secondary crop shape is knownso far, it is classified in the genus Uredo .

features

Macroscopic features

Uredo susica 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 Uredo Susica grows as with all Uredo TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. The spermogonia and aecia of the species are not known. The uredia of the fungus growing on both sides of the host leaves and fescue are rust-brown. Their golden uredospores are 21–26 × 18–25 µm in size, mostly spherical to almost spherical and warty. The parts of the species are unknown.

distribution

The known distribution area of Uredo susica only includes Morocco .

ecology

The host plant of Uredo susica is Dichanthium annulatum . 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 goes through a presumably macrocyclical development cycle with Spermogonia, Aecien, Uredien and Telien. Due to the lack of aecia and spermogonia, it is not possible to determine whether it changes host .

literature

  • George Baker Cummins: The Rust Fungi of Cereals, Grasses and Bamboos . Springer, Berlin 1971, ISBN 3-540-05336-0 .