Marizeth Groenewald

The Spiculogloeomycetes are a class of fungi in the subdivision Pucciniomycotina of the Basidiomycota. The class consists of a single order, the Spiculogloeales, together with an additional, unassigned genus, Meniscomyces. Many species are currently known only from their yeast states. Species in the genus Spiculogloea form hyphal states that produce auricularioid (laterally septate) basidia and are parasitic on other fungi.

The Naemateliaceae are a family of fungi in the order Tremellales. The family currently contains two genera.

The Mrakiaceae are a family of fungi in the order Cystofilobasidiales. Phylogenetic analyses shows that this family is clearly distinct from other yeast-like families of the Tremellomycetes. The family had six genera in 2015.

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The Bulleraceae are a family of fungi in the order Tremellales. The family currently contains four genera. Some species produce gelatinous basidiocarps and were formerly placed in the genus Tremella. Most, however, are only known from their yeast states.

Vishniacozyma is a ubiquitous genus of yeast fungi belonging to the family Bulleribasidiaceae. This genus is globally distributed being found on plants, litter, soil and other natural substrates.

The Trimorphomycetaceae are a family of fungi in the order Tremellales. The family currently contains four genera. Some species produce filamentous sexual states and are parasites of other fungi. Most, however, are only known from their yeast states.

Pseudotremella is a genus of fungi in the family Bulleraceae. All Pseudotremella species are parasites of other fungi and produce anamorphic yeast states. Basidiocarps (fruit bodies), when produced, are gelatinous and are colloquially classed among the "jelly fungi". Four species of Pseudotremella are currently recognized worldwide. Two of these species are, as yet, only known from their yeast states.

Naganishia vishniacii is an extremophile fungus originally isolated as a yeast from soil samples in the dry valleys of Antarctica. The species grows at 4 degrees Celsius and below but not at 26 degrees Celsius and above. Visually it is characterized as a cream mass in culture. It is nonfermentative and assimilates glucose, maltose, melezitose, trehalose, and xylose. Molecular research, based on cladistic analysis of DNA sequences, shows that the species does not belong in the Cryptococcaceae. A yeast was described as Cryptococcus socialis in a 1985 paper by Helen S. Vishniac, together with C.

Naganishia antarctica is a yeast species that has been isolated from soil in Antarctica. This species grows best between 4 °C (39 °F) and 20 °C (68 °F), and some strains have been observed to grow above 25 °C (77 °F). This temperature range is one of the only things that can distinguish it from N. albida on the DNA level, however, it can be phenotypically differentiated through its ability to utilize different minerals and its overall appearance. When plated the colonies have a slightly mucosoid appearance, with a white to cream coloration. Naganishia antarctica is able to assimilate nitrogen

Naganishia albidosimilis (synonym Cryptococcus albidosimilis) is a species of fungus in the family Filobasidiaceae. It is currently only known from its yeast state, isolated from soil in Antarctica. When plated on agar Naganishia albidosimilis produces colonies that are shining white. The colonies appear to be mucosoid when plated on agar. When grown in liquid media, the yeast fails to grow well unless the media is constantly agitated. This species is considered mesophilic, with optimal growth temperature at 25 °C. The yeast cells are ovoid and produce a capsule. Naganishia albidosimilis

Naganishia adeliensis (synonym Cryptococcus adeliensis) is a species of fungus in the family Filobasidiaceae. It is currently only known from its yeast state, isolated from decaying algae in Antarctica. When plated on agar Naganishia adeliensis produces colonies that are cream, with a smooth, glossy appearance. The colonies frequently appear to have a soft texture. The optimal growth range for this species is at 25 degrees Celsius. Naganishia adeliensis is incapable of fermentation, as is typical of Naganishia species. This species is able to use sucrose, maltose, cellbiose, trehalose,

Cutaneotrichosporon is a genus of fungus in the family Trichosporonaceae. Species within the genus include: Cutaneotrichosporon aggtelekiense (A.Nováková, Savická & M.Kolařík) M.Takash., Manabe, Y.Nishim., Sriswasdi, Ohkuma, W.Iwasaki & SugitaCutaneotrichosporon arboriforme (Sugita, M.Takash., A.Sano, Nishim., Kinebuchi, S.Yamag. & Osanai) Xin Zhan Liu, F.Y.Bai, M.Groenew. & BoekhoutCutaneotrichosporon cavernicola M.Takash., Kurakado, O.Cho, K.Kikuchi, Sugiy. & SugitaCutaneotrichosporon curvatum (Diddens & Lodder) Yurkov, Xin Zhan Liu, F.Y.Bai, M.Groenew. & BoekhoutCutaneotrichosporon

The Bulleribasidiaceae is a family of fungi in the order Tremellales. The family currently contains six genera. Some species produce filamentous sexual states with septate basidia and are parasites of other fungi. Most, however, are only known from their yeast states.

Solicoccozyma is a genus of fungi in the family Piskurozymaceae. Species have only been isolated in their yeast states, several of which were formerly referred to the genus Cryptococcus, but can produce filamentous states with basidia in culture. Nine species have been described worldwide.

Slooffia is a genus of fungi in the subdivision Pucciniomycotina. Most species are known only from their yeast states. Known hyphal states produce auricularioid (tubular and laterally septate) basidia, bearing basidiospores, and are parasitic on other fungi.

Rhodosporidiobolus is a genus of fungus.

The Piskurozymaceae are a family of fungi in the order Filobasidiales. Most species are only known from their yeast states, but some produce filamentous sexual states with basidia that are parasitic on other fungi. The family currently contains two genera. The genus name of Piskurozyma is in honour of Jure Piškur (1960-2014), who was a Slovenian molecular geneticist from the University of Copenhagen.

Papiliotrema laurentii (synonym Cryptococcus laurentii) is a species of fungus in the family Rhynchogastremaceae. It is typically isolated in its yeast state. In its yeast state, it is a rare human pathogen, able to provoke a skin condition, or fungemia in immunocompromised hosts. It can also be used as sole source of food for the rearing of Caenorhabditis elegans.

Naganishia bhutanensis is a species of fungus in the family Filobasidiaceae. It was isolated in its yeast state from soil in Bhutan. The cell is encapsulated with an extended ovoid shape. When the cell buds, it creates birth scars, and the neck of the new yeast fits inside of the bud scar neck. The new cell typically only buds from the birth scar present from where it budded off the parent cell. In over half of the dividing cells in N. bhutanensis cultures the cell walls were holoblastic, meaning that the new cell wall was continuous with the old cell wall on the parent cell; the remaining

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