Trichosporon asahii

Technopedia Center

Faculty of Engineering and Computer Science
S1 Informatics S1 Information Systems S1 Information Technology S1 Computer Engineering S1 Electrical Engineering S1 Civil Engineering

faculty of Economics and Business
S1 Management S1 Accountancy

Faculty of Letters and Educational Sciences
S1 English literature S1 English language education S1 Mathematics education S1 Sports Education

Trichosporon asahii - Wikipedia

From Wikipedia, the free encyclopedia

Trichosporon asahii

Gram stain of T. asahii
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Tremellomycetes
Order:	Trichosporonales
Family:	Trichosporonaceae
Genus:	Trichosporon
Species:	T. asahii
Binomial name
*Trichosporon asahii* Akagi ex Sugita, A.Nishikawa & Shinoda^[1]

Trichosporon asahii is a non-Candida yeast that has been reported to cause infections in immunocompromised patients.^[2] T. asahii is the most prominent human pathogen in its genus, causing more than half of all Trichosporon infections. First discovered and named in 1929,^[3] The currently accepted nomenclature of T. asahii was validated in 1994.^[4]

Disease

The clinical manifestations of T. asahii infection are non-specific and vary depending on the site of infection. The most common types of infection were urinary tract infections, fungemia, and disseminated infection.^[2] Cutaneous infections have also been reported.^[5]

Identification and culture

T. asahii grows readily on routine laboratory media, producing white, yellow, or cream, yeast-like colonies on Sabouraud dextrose agar.^[6] This fungus has a rapid growth rate and colonies mature in 5 days. When grown on cornmeal-Tween 80 agar, true hyphae, pseudohyphae, and blastoconidia can be seen under microscopic examination. Arthroconidia can be observed in older cultures. This fungus is able to hydrolyze urea through the production of urease.^[6]

Treatment

ESCMID/ECMM guidelines recommend the use of voriconazole for the treatment of invasive T. asahii infections.^[7] Patients have also been treated with amphotericin B and triazole therapy.^[2]

References

^ "Trichosporon asahii". Global Biodiversity Information Facility.
^ ^a ^b ^c Li, Haitao; Guo, Meihong; Wang, Congmin; Li, Yibo; Fernandez, Anne Marie; Ferraro, Thomas N.; Yang, Rongya; Chen, Yong (2020). "Epidemiological study of Trichosporon asahii infections over the past 23 years". Epidemiology and Infection. 148: e169. doi:10.1017/S0950268820001624. ISSN 0950-2688. PMC 7439294. PMID 32703332.
^ Akagi, S (1929). "Uber eine neue mykotische Hautkrankheit". Jpn J Dermatol Urol. 29: 53–55.
^ Sugita, T; Nishikawa, A; Shinoda, T (Mar 1994). "Reclassification of Trichosporon cutaneum by DNA Relatedness By the Spectrophotometric Method and the Chemiluminometric Method". The Journal of General and Applied Microbiology. 40 (5): 397–408. doi:10.2323/jgam.40.397.
^ Schnur, Jack; Hawco, Colton; Fonarov, Ilya; Casadesus, Damian (Jun 2021). "Rare cutaneous manifestation of Trichosporon asahii". BMJ Case Reports. 14 (6): e243659. doi:10.1136/bcr-2021-243659. ISSN 1757-790X. PMC 8212178. PMID 34140332.
^ ^a ^b Sciortino, Carmen V. (2017). Atlas of clinically important fungi. Hoboken, New Jersey: John Wiley & Sons, Inc. pp. 58–59. ISBN 978-1-119-06966-9.
^ Arendrup, M.C.; Boekhout, T.; Akova, M.; Meis, J.F.; Cornely, O.A.; Lortholary, O. (Apr 2014). "ESCMID and ECMM joint clinical guidelines for the diagnosis and management of rare invasive yeast infections". Clinical Microbiology and Infection. 20: 76–98. doi:10.1111/1469-0691.12360. PMID 24102785.

Taxon identifiers
Trichosporon asahii	Wikidata: Q14946096 AusFungi: 60031071 CoL: 58KCS GBIF: 2518566 iNaturalist: 537834 IRMNG: 10389498 MycoBank: 415474 NBN: NHMSYS0001500480 NCBI: 82508 NZOR: 3ba5a094-6641-446b-a00c-ff041dbc5712 Open Tree of Life: 594659

Category:

Tremellomycetes

Hidden categories: