Puccinia arenariae
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Puccinia arenariae on Chickweed |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Puccinia arenariae | ||||||||||||
| ( Schumacher ) G. Winter |
Puccinia arenariae is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of the carnation family . Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. It iswidespread in the Palearctic .
features
Macroscopic features
Puccinia arenariae 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 spots and pustules on the leaf surfaces.
Microscopic features
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The mycelium of Puccinia arenariae grows as with all Puccinia TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. Spermogonia and aecia of the species are absent. The same applies to uredia of the mushroom. The parts of the species growing on the undersides of the leaves and stems of the host plants are brownish and powdery. The yellowish- brown teliospores are two-celled, usually round club- to long spindle-shaped, waisted, smooth and 30–50 × 14–21 µm in size. Their stalk is colorless and 65–80, rarely up to 140 µm long.
distribution
The known distribution area of Puccinia arenariae includes the Eurasian area of its host family.
ecology
The host plants of Puccinia arenariae are various carnation plants (Caryophyllaceae spp.). 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 microcyclic development cycle that includes only tele.
literature
- Malcolm Wilson, Douglas Mackay Henderson: British Rust Fungi . Cambridge University Press , 1966.
