Persistence of pigment production by yeast isolates grown on CHROMagar Candida medium.
We evaluated the persistence of pigmentation in yeast isolates grown on the chromogenic medium CHROMagar Candida over 7 days. Candida, Cryptococcus, and Trichosporon isolates were inoculated alone or mixed onto duplicate sets of plates and incubated at 30 and 35 degrees C. Candida albicans and Candida krusei were readily identified throughout the reading period, but Candida glabrata was difficult to differentiate from other species until the 3- or 4-day time point. Candida tropicalis produced colonies similar to those of rare Cryptococcus and Trichosporon species, and mixed cultures were often difficult to identify as such.
Hospenthal
Duane R
DR
Department of Medicine, Brooke Army Medical Center, Fort Sam Houston, Texas, USA. Duane.Hospenthal@amedd.army.mil
Murray
Clinton K
CK
Beckius
Miriam L
ML
Green
Judith A
JA
Dooley
David P
DP
D000362:Agar; D002175:Candida / Q000254:growth & development / Q000378:metabolism; D002863:Chromogenic Compounds / Q000378:metabolism*; D015169:Colony Count, Microbial; D003454:Cryptococcus / Q000254:growth & development / Q000378:metabolism; D003470:Culture Media; D008828:Microbiological Techniques; D003904:Mitosporic Fungi / Q000254:growth & development* / Q000378:metabolism; D010860:Pigments, Biological / Q000378:metabolism*; D012680:Sensitivity and Specificity; D014250:Trichosporon / Q000254:growth & development / Q000378:metabolism
D002863:Chromogenic Compounds; D003470:Culture Media; D010860:Pigments, Biological; D000362:Agar