Laboratory Identification of Torulopsis glabrata: Typical Appearance on Routine Bacteriological Media

Abstract

The colonial morphology of the yeast Torulopsis glabrata on sheep blood-agar is characteristic and was useful in the identification of 24% of clinical isolates.

Primary culture media for routine urine processing

“…Yeast cells with a positive germ tube test or producing pseudomycelium and chlamydospores on TOC were reported as Candida albicans. Those yeasts which produced no pseudomycelium and no browning on TOC and grew as tiny, white, raised nonhemolytic colonies on BA were reported as yeast-cells resembling Torulopsis glabrata (16); such isolates have subsequently been confirmed to be T. glabrata, using the Uni-Yeast-Tek system (Flow Laboratories, Inc., McLean, Va.). Yeasts producing only pseudomycelium and blastospores on TOC with no chlamydospores or browning of the TOC medium were reported as "yeast cells not Candida albicans."…”