Cryptococcus albidosimilis

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Cryptococcus albidosimilis
Scientific classification
Kingdom: Fungi
Phylum: Basidiomycota
Class: Tremellomycetes
Order: Tremellales
Family: Tremellaceae
Genus: Cryptococcus
Species: C. albidosimilis
Binomial name
Cryptococcus albidosimilis

'Cryptococcus albidosimilis is a species that has been isolated from soil in Antarctica. [1] When plated on agar it produces colonies that are shining white. The colonies appear to be mucosoid in appearance when plated on agar. When grown in liquid media, the yeast fails to grow well unless the media is constantly agitated. [2] This species is considered mesophilic, with optimal growth temperature is at 25°C, with a maximum growth temperature. [3] [4] On the microscopic level, the cells are ovoid in shape, and produce a capsule. C. albidosimilis reproduces through budding, and it does not appear s though this species reproduces through any sexual means. When mature, the cell size is approximately 4.9μm to 6.6μm. C. albidosimilis can use L-arabinose, cellobiose, citrate at pH 6.0, ethanol, D-glucitol, gluconate at pH 5.8, glucuronate at pH 5.5, myo-inositol, lactose, maltose, mannitol, melezitose, α-methylglucoside, L-rhamnose, salicin, soluble starch, succinate at pH 5.5, sucrose and xylose as sole carbon sources. This cell can also use L-lysine, nitrate and cadaverine as sole nitrogen sources. This species cannot ferment. C. albidosimilis is DBB positive, and produces amylose. [5]

References[edit]

  1. ^ Fonseca A., Scorzeti G., and Fell J. (2000) Diversity in the yeast Cryptococcus albidus and related species as revealed by ribosomal DNA sequence analysis. Can. J. Microbiol. 46:7-27
  2. ^ Vishniac H. S., Kurtzman C. P. (1992) Cryptococcus anarcticus sp. nov. and Cryptococcus albidosimilis sp. nov., Basidioblasomycetes from Antarctic Soils. Int. J. Syst. Bacteriol. 42(4) 547-553
  3. ^ Scorzetti et al. (2000) Cryptococcus adeliensis sp. nov., a xylanase producing basidiomycetous yeast from Antarctica. Antonie van Leeuwenhoek. 77:153-157
  4. ^ Vishniac H. S., Kurtzman C. P. (1992) Cryptococcus anarcticus sp. nov. and Cryptococcus albidosimilis sp. nov., Basidioblasomycetes from Antarctic Soils. Int. J. Syst. Bacteriol. 42(4) 547-553
  5. ^ Vishniac H. S., Kurtzman C. P. (1992) Cryptococcus anarcticus sp. nov. and Cryptococcus albidosimilis sp. nov., Basidioblasomycetes from Antarctic Soils. Int. J. Syst. Bacteriol. 42(4) 547-553

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