Puccinia sinaloana
| Puccinia sinaloana | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Puccinia sinaloana | ||||||||||||
| Cummins , MP Britton & JW Baxter |
Puccinia sinaloana is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of an unknown water fume . Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. She is endemic to Mexico .
features
Macroscopic features
Puccinia sinaloana 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 sinaloana grows as with all Puccinia TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. Your spermogonia grow on the upper side of the host leaves. The aecia of the species grow in small groups. They have 20–25 × 18–22 µm large, broadly ovate to broadly ellipsoidal aeciospores with a warty surface. The uredia of the mushroom growing on the underside of the leaves are cinnamon brown. Their uredospores, which are also cinnamon-brown, are 28–32 × 22–24 µm in size, ovate to ellipsoid and spiny. The bilateral growing parts of the species are black-brown, powdery and uncovered. The dark chestnut brown teliospores are two-celled, usually long ovate to ellipsoidal and 43–50 × 29–32 µm in size. Their stem is colorless and up to 70 µm long.
distribution
The known distribution area of Puccinia sinaloana includes western central Mexico .
ecology
The host plant of Puccinia sinaloana is an unspecified water dost ( Eupatorium sp.). 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 goes through a development cycle with Spermogonia, Aecien, Telien and Uredien, but does not change host.
literature
- George Baker Cummins : Rust Fungi on Legumes and Composites in North America . University of Arizona Press, Tucson 1978, ISBN 0-8165-0653-1 .