Puccinia hierochloina
| Puccinia hierochloina | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Puccinia hierochloina | ||||||||||||
| Klebahn |
Puccinia hierochloina is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is believed to be an endoparasite of rue and St. Mary's grass . Symptoms of infestation by the species are yellow spots of rust and pustules on the leaf surfaces of the host plants. The distribution area covers all of Eurasia .
features
Puccinia hierochloina 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 or blackish spots and pustules on the leaf surfaces.
The mycelium of Puccinia hierochloina grows as with all Puccinia TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. Their pycnias and aecias are not described in detail. The uredia are small, elliptical and initially covered. Their uredospores are briefly ellipsoidal, 22-25 × 17-22 µm in size, yellowish and spiky. The parts of the species grow as lines or points on the underside of the leaf and are long covered and grayish. The teleutospores are two-celled, club-shaped to spindle-shaped and 32–45 × 16–23 µm in size. They are light gray-brown, their stem is very short.
distribution
Puccinia hierochloina has a distribution area that extends over the entire Eurasia.
ecology
The host plants of Puccinia hierochloina as haplonts are probably meadow rue ( Thalictrum spp.) And Mariengrass ( Hierochloe spp.) For the dikaryote . 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 probably has a development cycle with pycnias, uredia, telia and aecidia.
literature
- Ernst Gäumann: The rust fungi of Central Europe. With special consideration of Switzerland . In: Contributions to the cryptogam flora in Switzerland . tape XII . Commission publisher Buchdruckerei Büchler & Co, Bern 1959.