Isolation of Candida dubliniensis for the first time in Cali, Colombia, and its identification with phenotyping methods.
Candida dubliniensis is an emerging pathogenic yeast isolated mainly from the oral cavity of HIV-infected patients. The close phenotypic and genotypic relationship between C. albicans and C. dubliniensis has led to incorrectly identifying isolates of C. dubliniensis as C. albicans. The oral cavities of 107 diabetic patients were studied in Cali, Colombia, and 72 colonies of Candida, with shades of green on CHROMagar Candida culture media, were obtained. Various phenotypic tests were carried out, which included germ tube formation and production of chlamydospores on corn meal Agar. Additionally, growth studies were carried out at 42 degrees C and 45 degrees C and on Sabouraud agar with 6.5%, sodium chloride. Identification of C. dubliniensis with these tests was confirmed with API 20C Aux. We identified 65 and 7 colonies of C. albicans and C. dubliniensis, respectively. This is the first time that C. dubliniensis is identified with phenotypic methods in Colombia.
Alvarez
María Inés
MI
Department of Microbiology, Universidad del Valle, Cali, Colombia. malvarez@univalle.edu.co
Suárez
Blanca Lynne
BL
Caicedo
Luz Dary
LD
D017088:AIDS-Related Opportunistic Infections / Q000382:microbiology; D002176:Candida albicans / Q000145:classification* / Q000254:growth & development / Q000302:isolation & purification*; D002180:Candidiasis, Oral / Q000382:microbiology; D003105:Colombia; D003470:Culture Media; D003920:Diabetes Mellitus / Q000382:microbiology; D006801:Humans; D008759:Methylglycosides; D016533:Mycological Typing Techniques; D010641:Phenotype; D013696:Temperature; D014994:Xylose
D003470:Culture Media; D008759:Methylglycosides; D014994:Xylose