Vital growth factors of Malassezia species on modified CHROMagar Candida

Kaneko, Takamasa; Makimura, Koichi; Onozaki, Masanobu; Ueda, Kumiko; Yamada, Yohko; Nishiyama, Yayoi; Yamaguchi, Hideyo
December 2005
Medical Mycology;Dec2005, Vol. 43 Issue 8, p699
Academic Journal
A comparison of several media , i.e., potato dextrose agar with olive oil (Oil-PDA), modified Dixon agar (mDIX) and variations of Leeming and Notman agar (LNA) for the isolation and growth of Malassezia and Candida species was examined. Since LNA supported the highest growth of Malassezia species its key components, i.e., ox bile, glycerol monostearate, glycerol and Tween 60, were added to CHROMagar Candida. All 7 species of Malassezia grew well on this modified medium (LN-CHROM) after incubation for 4  days at 30°C and development was equal to that observed on LNA. Colonies on LN-CHROM were smooth and from pink to dark purple in color. Furthermore, the use of LN-CHROM did not alter the colony characteristics of Candida species as compared to that found on CHROMagar Candida. The results of the present investigation indicate that the use of LN-CHROM would make possible the simultaneous isolation and identification of Malassezia and Candida species.


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