Uromyces glycyrrhizae
| Uromyces glycyrrhizae | ||||||||||||
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| Scientific name | ||||||||||||
| Uromyces glycyrrhizae | ||||||||||||
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Uromyces Glycyrrhizae is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of licorice . Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. It iswidespread in the Holarctic .
features
Macroscopic features
Uromyces glycyrrhizae can only be recognized with the naked eye from 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 Uromyces glycyrrhizae grows as with all Uromyces TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. Their spermogonia usually grow on the underside in small groups on the host leaves. The aecia of the species that also grow on the underside of the leaves and on the petioles are cinnamon-brown. Their aeciospores, which are also cinnamon-brown, are 26–30 × 24–27 µm in size, broadly ovate to almost spherical and spiky. The uredia of the fungus growing underneath the leaves resemble the aecia, also in their spores. The parts of the species growing underneath the leaves are chocolate brown, powdery and uncovered. The teliospores are unicellular, usually ovoid to ellipsoid, smooth and mostly 25–30 × 17–21 µm in size. Their stem is colorless.
distribution
The known distribution area of Uromyces glycyrrhizae includes the entire Holarctic .
ecology
The host plants of Uromyces glycyrrhizae are sweet woods ( Glycyrrhiza 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 goes through a macrocyclical development cycle with Spermogonia, Aecien, Telien and Uredien. As an auto-ecologic parasite, it 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 .
Individual evidence
- ^ DF Farr, AY Rossman: Uromyces glycyrrhizae. (No longer available online.) In: Fungal Databases, Systematic Mycology and Microbiology Laboratory, ARS, USDA. Archived from the original on March 4, 2016 ; Retrieved May 19, 2013 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
