Uredo kriegeriana

Uredo kriegeriana is a Ständerpilzart from the order of rust fungi ( Pucciniales ). The fungus is an endoparasite of hemp (Cannabis sativa). Symptoms of infestation by the way are rust spots and pustules on the leaf surfaces of host plants. It is endemic in Saxony. As far is known only to their side fruit shape, it is placed in the form genus Uredo.

Features

Macroscopic characteristics

Uredo kriegeriana with the naked eye can be seen only on the basis of the projected on the surface of the host spore deposits. They grow in clusters that appear as yellowish to brown spots and pustules on the leaf surfaces.

Microscopic characteristics

The mycelium of Uredo kriegeriana grows intercellular as with all Uredo types and forms Saugfäden that grow in the storage tissues of the host. The spermogonia and Aecien the type is not known. The underside of leaves growing on the host uredia of the fungus in loose groups. Your orange urediniospores are 21-27 × 15-2 microns in size, usually nearly spherical to ellipsoidal and smooth. The Telien the type are unknown.

Dissemination

The known distribution area of Uredo kriegeriana only includes the Saxon Switzerland.

Ecology

The host plant of Uredo kriegeriana is hemp (Cannabis sativa). The fungus feeds on the present in storage tissues of the plant nutrients, its spores bearing later break through the leaf surface, and put spores free. The way passes through a presumably macrocyclic development cycle with spermogonia, Aecien, uredia and Telien. Whether she is going through a change of host, can not be ascertained due to lack Aecien and spermogonia.