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Prototheca wickerhamii: Wikis

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Prototheca wickerhamii
Scientific classification
Domain: Eukaryota
Kingdom: Viridiplantae
Phylum: Chlorophyta
Class: Trebouxiophyceae
Order: Chlorellales
Family: Chlorellaceae
Genus: Prototheca
Species: P. wickerhamii
Binomial name
Prototheca wickerhamii

Prototheca wickerhamii is a ubiquitous alga that does not have chlorophyll. It is widely present in the environment and is a rare cause of infection in humans (protothecosis), which most commonly presents as nodules of the skin.[1] Most cases reported have a suppressed immune system (from drugs or disease).


Diagnosis can be made through culture of infected fluid in Sabouraud dextrose agar or by visualization of sporangia containing sporangiospores on tissue biopsy.

Antimicrobial therapy

Treatment is not standardized. Amphotericin B, itraconazole, posaconazole and voriconazole have all been tried.[1]


  1. ^ a b Curbelo A & Pankey GA (2009). "A man presenting with nodules on hands and elbows". Clin Infect Dis 48: 1160–1161. doi:10.1086/597466. PMID 19292636.  

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