Synonym: Torulopsis haemulonii
On Sabouraud's dextrose agar colonies are white to cream colored, smooth, glabrous and yeast-like in appearance. Microscopic morphology shows numerous ovoid to globose, budding yeast-like cells or blastoconidia, 3.0-5.0 x 3.0-6.5 um in size. No pseudohyphae produced.
India Ink Preparation: Negative - no capsules present.
Dalmau Plate Culture on Cornmeal and Tween 80 Agar: Spherical to ovoid, budding yeast-like cells only. No pseudohyphae produced.
Germ Tube test is Negative
Hydrolysis of Urea is Negative
Growth on Cycloheximide medium is Positive
Growth at 37C is Positive
Fermentation Reactions: Where fermentation means the production of gas and is independent of pH changes.
Positive: Glucose; Sucrose; Trehalose.
Negative: Lactose; Galactose.
Positive: Glucose; Galactose; Maltose; Sucrose; Trehalose; D-Xylose; Melezitose; Glycerol; Raffinose (delayed); L-Arabinose (delayed); Ribitol (delayed); Galactitol (delayed); D-Mannitol; L-Rhamnose; D-Glucitol; Citric acid; Succinic acid.
Negative: Potassium nitrate; Lactose; L-Sorbose; Cellobiose; D-Ribose; Melibiose; Erythritol; Inositol; Soluble Starch; Salicin; D-Arabinose; DL-Lactic acid.
Candida haemulonii has been reported from a few cases of fungemia but clinical isolations remain rare. It has also been isolated from fish and a dolphin. C. haemulonii may be difficult to distinguish from C. famata using some commercial yeast identification systems due to data base limitations.
Kreger-Van Rij, N.J.W. (ed) 1984. The Yeasts: a taxonomic study. 3rd Edition. Elsevier Science Publishers B.V., Amsterdam, The Netherlands.
Rippon, J.W. 1988. Medical Mycology. 3rd Edition. W.B. Saunders Co., Philadelphia, USA.