DESCRIPTIONS OF MEDICAL FUNGI

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Descriptions of Medical Fungi
Species of Ulocladium should not be confused with other poroconidial genera such as
Stemphylium, Alternaria, Bipolaris, Exserohilum, Dreschlera and Curvularia. A human
case of keratitis has been reported (Badenoch et al. 2006).
RG-1 organism.
Ulocladium Preuss
Morphological Description: Colonies are rapid growing, brown to olivaceousblack
or greyish and suede-like to floccose. Microscopically, numerous, usually
solitary, multicelled conidia (dictyoconidia) are formed through a pore (poroconidia)
by a sympodially elongating geniculate conidiophore. Conidia are typically obovoid
(narrowest at the base), dark brown and often rough-walled. Seven species have been
described, all being saprophytes.
Molecular Identification: ITS sequencing is sufficient for genus identification
(Badenoch et al. 2006) and Woudenberg et al. 2013).
References: Ellis (1970, 1976), Domsch et al. (1980), Rippon (1988), Samson et al.
(1995), de Hoog et al. (2000).
10 µm
Ulocladium spp. conidiophores and conidia.
Antifungal Susceptibility: Ulocladium sp. very limited data (Pujol et al. 2000,
Australian National data); MIC µg/mL.
Antifungal Range Antifungal Range Antifungal Range
AmB 1->16 VORI 0.25 ITRA 0.06->16