Puccinia arundinellae anomalae
| Puccinia arundinellae anomalae | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Puccinia arundinellae anomalae | ||||||||||||
| Dietel |
Puccinia arundinellae-anomalae is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of the Ziests Stachys japonicae and the sweet grass Arundinella anomala . Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. It is common in East Asia.
features
Macroscopic features
Puccinia arundinellae-anomalae 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 spots and pustules on the leaf surfaces.
Microscopic features
The mycelium of Puccinia arundinellae-anomalae , like all Puccinia species, grows intercellularly and forms suction threads that grow into the host's storage tissue. The aecia of the fungus have 21–28 × 17–23 µm large, yellowish aeciospores with a wrinkled surface. The yellow uredia of the species grow on both sides or predominantly on top of the leaves of the host plant. Their colorless uredospores are usually ovate to ellipsoidal, 28–36 × 22–28 µm in size and finely spiky. The bilateral growing parts of the species are black-brown, compact and uncovered early. The hazelnut-brown teliospores of the fungus are two-celled, usually ovoid to ellipsoid and 38–54 × 19–24 µm in size. The stem is colorless to yellowish and up to 100 µm long.
distribution
The known distribution area of Puccinia arundinellae-anomalae includes China and Japan .
ecology
The host plants of Puccinia arundinellae-anomalae are for the haplonts Stachys japonicae and Arundinella anomala for the dikaryotes . 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 Telien, Uredien, Spermogonia and Aecien and changes host.
literature
- George Baker Cummins: The Rust Fungi of Cereals, Grasses and Bamboos . Springer, Berlin et al. 1971, ISBN 3-540-05336-0 .