Puccinia gladioli
| Puccinia gladioli | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Puccinia gladioli | ||||||||||||
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Puccinia gladioli is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of various corn salads and gladioli . Symptoms of the infestation by the species are rust spots on the leaves of the host plants. The distribution area includes the Mediterranean , the British Isles and Madagascar .
features
Macroscopic features
Puccinia gladioli 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 black spots on the leaf surfaces.
Microscopic features
The mycelium of Puccinia gladioli grow like all Puccinia TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. The species has pycnias that usually grow on the underside of the leaf. The aecia are cup-shaped and 250-350 µm wide. They have spherical to ellipsoidal aecidiospores 17–24 × 13–18 µm, which are hyaline and finely warty. Uredien are not available. The parts of the species are rounded or oblong. The teleutospores are one- to two-celled, elongated to long, club-shaped and 34–48 × 12–22 µm in size; their stem is colorless and about as long as they are.
distribution
The species area of Puccinia gladioli includes the Mediterranean area. The species was introduced to Great Britain and Madagascar.
ecology
The host plants of Puccinia gladioli are lamb's lettuce ( Valerianella spp.) For the aecidia and pycnias and gladioli ( Gladiolus spp.) For the telia. 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, telia and aecidia.
literature
- Ernst Gäumann: The rust fungi of Central Europe. With special consideration of Switzerland (= contributions to the cryptogam flora of Switzerland), Volume XII. Commission publisher Buchdruckerei Büchler & Co, Bern 1959.