New Yeast Species, Malassezia dermatis , Isolated from Patients with Atopic Dermatitis

Author:

Sugita Takashi1,Takashima Masako2,Shinoda Takako1,Suto Hajime3,Unno Tetsushi3,Tsuboi Ryoji3,Ogawa Hideoki3,Nishikawa Akemi4

Affiliation:

1. Department of Microbiology

2. Japan Collection of Microorganisms, RIKEN (The Institute of Physical and Chemical Research), Wako, Saitama, Japan

3. Department of Dermatology, School of Medicine, Juntendo University, Bunkyo-ku, Tokyo

4. Department of Immunobiology, Meiji Pharmaceutical University, Kiyose

Abstract

ABSTRACT Malassezia species are considered to be one of the exacerbating factors in atopic dermatitis (AD). During examination of the cutaneous colonization of Malassezia species in AD patients, we found a new species on the surface of the patients' skin. Analysis of ribosomal DNA sequences suggested that the isolates belonged to the genus Malassezia . They did not grow in Sabouraud dextrose agar but utilized specific concentrations of Tween 20, 40, 60, and 80 as a lipid source. Thus, we concluded that our isolates were new members of the genus Malassezia and propose the name Malassezia dermatis sp. nov. for these isolates.

Publisher

American Society for Microbiology

Subject

Microbiology (medical)

Reference26 articles.

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3. Guého, E., T. Boekhout, H. R. Ashbee, J. Guillot, A. van Belkum, and J. Faergemann. 1998. The role of Malassezia species in the ecology of human skin and as pathogens. Med. Mycol.36(Suppl. 1):220-229.

4. Guého, E., G. Midgley, and J. Guillot. 1996. The genus Malassezia with description of four new species. Antonie van Leeuwenhoek69:337-355.

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