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Journal of Clinical Microbiology, April 2002, p. 1363-1367, Vol. 40, No. 4
0095-1137/02/$04.00+0 DOI: 10.1128/JCM.40.4.1363-1367.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.
New Yeast Species, Malassezia dermatis, Isolated from Patients with Atopic Dermatitis
Takashi Sugita,1* Masako Takashima,2 Takako Shinoda,1 Hajime Suto,3 Tetsushi Unno,3 Ryoji Tsuboi,3 Hideoki Ogawa,3 and Akemi Nishikawa4
Department of Microbiology,1
Department of Immunobiology, Meiji Pharmaceutical University, Kiyose,4
Department of Dermatology, School of Medicine, Juntendo University, Bunkyo-ku, Tokyo,3
Japan Collection of Microorganisms, RIKEN (The Institute of Physical and Chemical Research), Wako, Saitama, Japan2
Received 4 September 2001/
Returned for modification 31 December 2001/
Accepted 2 February 2002
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.
* Corresponding author. Mailing address: Department of Microbiology, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan. Phone: 81-424-95-8762. Fax: 81-424-95-8762. E-mail:
sugita{at}my-pharm.ac.jp.
Journal of Clinical Microbiology, April 2002, p. 1363-1367, Vol. 40, No. 4
0095-1137/02/$04.00+0 DOI: 10.1128/JCM.40.4.1363-1367.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.
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