Corn smut ( Ustilago maydis )

The Ustilaginomycetes are a group of smut fungi ( Ustilaginomycotina ). All representatives are parasitic flowering plants.

Characteristics and lifestyle

The Ustilaginomycetes are dimorphisch, so alternately form yeast -like and mycelial stages. They form teliospores and throw not away their basidiospores.

The Ustilaginomycetes live parasitically on angiosperms, mainly representatives of the sweet and sour grasses. The interaction zone with the host is great.


The Ustilaginomycetes form a monophyletic group one of the two classes of the smut fungi. The Ustilaginomycetes itself be divided into two orders:

The Glomosporiaceae family can be assigned to any order.


  • Dominik Begerow, Matthias Stoll, Robert Bauer: A phylogenetic hypothesis of Ustilaginomycotina based on multiple genetic and morphological data Analyses. Mycologia, Volume 98, 2006, pp. 906-916. doi: 10.3852/mycologia.98.6.906