Uropyxis heterospora

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Uropyxis heterospora
Systematics
Subdivision : Pucciniomycotina
Class : Pucciniomycetes
Order : Rust mushrooms (Pucciniales)
Family : Pucciniaceae
Genre : Uropyxis
Type : Uropyxis heterospora
Scientific name
Uropyxis heterospora
Hens & Cummins

Uropyxis heterospora is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of the legume Apoplanesia paniculata . Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. She is endemic to Mexico.

features

Macroscopic features

Uropyxis heterospora 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 Uropyxis heterospora grows as with all Puccinia TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. The spermogonia and aecia of the species are unknown. The same applies to their uredia , they may not be trained. The parts of the species growing on both sides of the surfaces of the host leaves are chocolate to cinnamon brown and uncovered, they have colorless paraphyses . The chestnut-brown teliospores are two-celled and double-walled, usually broadly ellipsoidal, slightly spiky and usually 24–40 × 17–28 µm in size. Their stem is colorless.

distribution

The known distribution area of Uropyxis heterospora only includes Mexico .

ecology

The host plant of Uropyxis heterospora is Apoplanesia paniculata . 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 probably microcyclical development cycle , of which only the telia and their host are known so far. It cannot therefore be said whether she will change host .

literature