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Cryptococcus is a genus of fungi in the family Cryptococcaceae that includes both yeasts and filamentous species. The filamentous, sexual forms or teleomorphs were formerly classified in the genus Filobasidiella , while Cryptococcus was reserved for the yeasts.
Cryptococcus neoformans is an encapsulated basidiomycetous yeast [1] belonging to the class Tremellomycetes and an obligate aerobe [2] that can live in both plants and animals. Its teleomorph is a filamentous fungus , formerly referred to Filobasidiella neoformans .
Cryptococcus gattii, formerly known as Cryptococcus neoformans var. gattii, is an encapsulated yeast found primarily in tropical and subtropical climates. Its teleomorph is Filobasidiella bacillispora , a filamentous fungus belonging to the class Tremellomycetes .
Cryptococcus ater is a species of Cryptococcus that has some unique characteristics. When grown on agar it typically produces cream colonies, however when grown on neopeptone agar slants, the colonies turn olive green after approximately four weeks.
Solicoccozyma terrea (synonym Cryptococcus terreus) is a species of fungus in the family Piskurozymaceae. It is only known from its yeast state. In this state, it can use glucose, lactose, galactose and potassium nitrate. The cells are oval with mucous capsules. Cultures of the yeast are cream at first, becoming tan with a “tough” surface skin.
Cultured colonies are cream to pale pink, the majority smooth with a mucoid appearance. Some are rough and wrinkled, but this is a rare occurrence. [3] Naganishia albida is very similar to Cryptococcus neoformans, but can be differentiated because it is phenol oxidase-negative, and, when grown on Niger or birdseed agar, C. neoformans produces melanin, causing the cells to become brown, while N ...
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, [1] or fungemia in immunocompromised hosts.
The Cryptococcaceae are a family of fungi in the order Tremellales.The family currently contains two genera.Some species produce filamentous, sexual states with distinctive basidia and are parasites of other fungi.