Puccinia recondita

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Puccinia recondita
Puccinia recondita on common wheat

Puccinia recondita on common wheat

Systematics
Subdivision : Pucciniomycotina
Class : Pucciniomycetes
Order : Rust mushrooms (Pucciniales)
Family : Pucciniaceae
Genre : Puccinia
Type : Puccinia recondita
Scientific name
Puccinia recondita
Roberge

Puccinia recondita is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is a endoparasite of Balsaminengewächsen , Raublattgewächsen , water leaf plants and buttercups and numerous grasses . Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. It occurs worldwide.

features

Macroscopic features

Puccinia recondita 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

Germinating uredospore

The mycelium of Puccinia recondita grows as with all Puccinia TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. The cup-shaped aecia of the species have 21–26 × 17–22  µm large, broad ellipsoidal to spherical and hyaline aeciospores. The cinnamon-brown uredia of the species grow on both sides of the leaves of the host plant. Their yellow to cinnamon brown uredospores are usually broadly ellipsoidal to ovate, 24–32 × 20–25 µm in size and finely spiky. The parts of the species growing on both sides and on the sheaths, mostly on the upper side of the leaf, are black-brown and long covered. The hazelnut-brown teliospores of the fungus are two-celled, usually long, club-shaped and 40–58 × 17–25 µm in size. Their stem is brownish and up to 20 µm long.

distribution

The known distribution area of Puccinia recondita includes the entire world.

ecology

The host plants of Puccinia recondita are for the haploid balsaminaceae (spp Balsaminaceae.), Boraginaceae (Boraginaceae spp.), Hydrophylloideae (Hydrophyllaceae spp.) And Ranunculaceae (Ranunculaceae spp.) And grasses (Poaceae spp.) For the dikaryotic . 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 Telien, Uredien, Spermogonia and Aecien and changes host.

literature

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

Web links

Commons : Puccinia recondita  - collection of images, videos and audio files