Puccinia laguri-chamaemoly
| Puccinia laguri-chamaemoly | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Puccinia laguri-chamaemoly | ||||||||||||
| Maire |
Puccinia laguri-chamaemoly is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of leek and velvet 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 large parts of Europe.
features
Macroscopic features
Puccinia laguri-chamaemoly 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.
Microscopic features
The mycelium of Puccinia laguri-chamaemoly grows as with all Puccinia TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. Your pyknia are golden yellow and grow on both leaf sides. The aecia are arranged in a circle and are cup-like. They have spherical to ellipsoidal aecidiospores 19–23 × 15–21 µm , which are golden yellow and warty. The uredia grow on both sides and are golden yellow. Their uredospores are spherical to ovate, 22–26 × 18–23 µm in size and warty. The bilateral growing parts of the species are round or oblong and black. The teleutospores are one to two-celled, elongated to club-shaped and 36–60 × 18–22 µm in size. They are brown, their stems are short and the same color.
distribution
Puccinia laguri-chamaemoly has a distribution area that extends over the western Mediterranean.
ecology
The host plants of Puccinia laguri-chamaemoly are as Haplont leek ( Allium spp.) And velvet grass ( Lagurus ovatus ) 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 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.