Puccinia madritensis
| Puccinia madritensis | ||||||||||||
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| Puccinia madritensis | ||||||||||||
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Puccinia madritensis is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of clematis and bristles . Symptoms of infestation by the species are yellow spots of rust and pustules on the leaf surfaces of the host plants. The distribution area includes the western Mediterranean.
features
Puccinia madritensis 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 or blackish spots and pustules on the leaf surfaces.
The mycelium of Puccinia madritensis grows as with all Puccinia TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. Your pyknia grow on the top and are honey-colored. The aecia of the species grow in elongated groups and form yellowish swollen areas. They have approximately spherical aecidiospores of 21–24 × 21–24 µm , which are orange and warty. The uredia are scattered and rust-colored. Your uredospores are ellipsoidal to almost spherical, 25–28 × 20–24 µm in size, light brown-red and spiky. The parts of the species are round or oblong and black. The teleutospores are two-celled, long-lobed and 42–48 × 12–20 µm in size. They are brownish, their stem is very short.
distribution
Puccinia madritensis has a distribution area that extends over the western Mediterranean.
ecology
The host plants of Puccinia madritensis are haplont clematis ( Clematis spp.) And brems ( Bromus 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 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.