Uromyces bauhiniicola
| Uromyces bauhiniicola | ||||||||||||
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| Scientific name | ||||||||||||
| Uromyces bauhiniicola | ||||||||||||
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Uromyces bauhiniicola is a stand fungal art from the order of the rust fungi (Pucciniales). The fungus is an endoparasite of Bauhinien . Symptoms of the infestation by the species are rust spots and pustules on the leaf surfaces of the host plants. It is common in Mexico .
features
Macroscopic features
Uromyces bauhiniicola 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 Uromyces bauhiniicola grows as with all Uromyces TYPES intercellular and forms Saugfäden that grow into the storage tissue of the host. The spermogonia of the species grow scattered on the upper side of the host leaves. The aecia of the species and their aeciospores are unknown. Uredien are apparently not trained. The parts of the species that grow on both sides are yellow or black-brown, powdery and uncovered. The golden to chestnut brown teliospores are unicellular, usually broad ellipsoid, warty and mostly 16–26 × 14–20 µm in size. Their stem is colorless and up to 40 µm long.
distribution
The known distribution area of Uromyces bauhiniicola only includes Mexico .
ecology
The host plants of Uromyces bauhiniicola are Bauhinien . 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 probably microcyclical development cycle with spermogonia, aecia and teliae and 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 .