Cystobasidiomycetes

The Cystobasidiomycetes are a class of Mushroom Fungi ( Basidiomycota ).

Characteristics and lifestyle

In the cell wall carbohydrates fucose is missing as a component which is present in the other Pucciniomycotina. All representatives form Phragmobasidien and are dimorphic form of two life stages: the haploid stage of growing yeast -like. These colonies are pink-orange, only with Naohidea they are white. Bannoa and Erythrobasidium not form basidia, but conidia. These two genera also possess a special, hydrogenated coenzyme Q10 system, and they form within the class has its own clade.

In this order no teleomorphs are known. The anamorphic Cyrenella elegans has spoke-like spread Konidienarme. Your yeast stage is orange. Cyrenella as well Sakaguchia colonize water locations. Both genera form teliospores.

Several representatives are parasites on fungi.

System

The Pucciniomycetes are the sister taxon of a group that consists of Microbotryomycetes, Mixiomycetes and Agaricostilbomycetes. The Pucciniomycetes include three orders:

• Cystobasidiales: anamorphic yeasts and dimorphic Cystobasidiaceae Occultifer
• Rhodotorula ( part )
• Cystobasidium

• Bannoa
• Erythrobasidium
• Rhodotorula ( part )
• Sporobolomyces ( part )

• Naohidea

No order assigned:

• Cyrenella
• Sakaguchia inhabited marine locations

Phylogenetic relationships within the class can be found in the following cladogram:

Erythrobasidiales

Cystobasidiales

Naohideales

Documents

• M. C. Aime et al.: An overview of the higher level classification of Pucciniomycotina based on combined Analyses of nuclear large and small subunit rDNA sequences. Mycologia, Volume 98, 2006, pp. 896-905.
• Robert Bauer, Dominik Begerow, José Paulo Sampaio, Michael White, Franz Winkler Upper: The simple- septate basidiomycetes: a synopsis. Mycological Progress, Volume 5, 2006, pp. 41-66, ISSN 1617 - 416x, doi: 10.1007/s11557-006-0502-0.