Puccinia sardonensis
| Puccinia sardonensis | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Puccinia sardonensis | ||||||||||||
| Gäumann |
Puccinia sardonensis is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of coriander-leaved ornamental flower and common stalk 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 of the mushroom is in the high mountains of Central Europe.
features
Puccinia sardonensis can only be recognized with the naked eye by means of the spore beds emerging 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 sardonensis grows as with all Puccinia TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. Your pyknia are spherical and sunk into the leaf surface. The aecia of the species grow on both sides in groups on yellowish or purple leaf spots. They have blunt polyhedral to ellipsoidal aecidiospores of 21–29 × 17–24 µm , which are colorless and warty. The uredia are line-shaped and light orange. Their uredospores are spherical to oval, 13–30 × 13–27 µm in size, almost hyaline and prickly. The parts of the species grow on both sides and are dark brown to black. The teleutospores are two-celled, cylindrical to club-shaped and 38–78 × 10–18 µm in size. They are brownish, their stem is very short.
distribution
Puccinia sardonensis has a distribution area that includes the central and eastern Alps and the High Tatras .
ecology
The host plants of Puccinia sardonensis are Haplont coriander- leaved ornamental flowers ( Callianthemum coriandrifolium ) and common stalk grass ( Anthoxanthum odoratum ) 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.