A new yeast, Malassezia yamatoensis, isolated from a patient with seborrheic dermatitis, and its distribution in patients and healthy subjects.
Over the last few years, new Malassezia species have been found regularly in Japanese subjects. We isolated another new Malassezia species from a Japanese patient with seborrheic dermatitis (SD), and named it M. yamatoensis. In its physiological characteristics and the utilization of Tween by M. yamatoensis is similar to that of M. furfur and M. dermatis. It is distinguished by its growth temperature. To examine the distribution of the microorganism in the skin of patients with SD and atopic dermatitis (AD), and healthy subjects, we applied transparent dressings to the skin, and detected M. yamatoensis DNA using a non-culture-based method that consisted of nested PCR with specific primers. M. yamatoensis DNA was detected from 3 of 31 SD patients (9.7%), 5 of 36 AD patients (13.9%), and 1 of 22 healthy subjects (4.6%). Therefore, M. yamatoensis is a rare member of the cutaneous microflora.
Department of Microbiology, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan. sugita@my-pharm.ac.jp
Takashi
T
Sugita
Mami
M
Tajima
Masako
M
Takashima
Misato
M
Amaya
Masuyoshi
M
Saito
Ryoji
R
Tsuboi
Akemi
A
Nishikawa
D000328:Adult; D000368:Aged; D004271:DNA, Fungal / Q000032:analysis; D004275:DNA, Ribosomal / Q000032:analysis; D021903:DNA, Ribosomal Spacer / Q000032:analysis; D003876:Dermatitis, Atopic / Q000382:microbiology*; D012628:Dermatitis, Seborrheic / Q000382:microbiology*; D003881:Dermatomycoses / Q000382:microbiology*; D005260:Female; D006801:Humans; D008290:Malassezia / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D008297:Male; D008875:Middle Aged; D008969:Molecular Sequence Data; D016533:Mycological Typing Techniques; D016133:Polymerase Chain Reaction; D012335:RNA, Ribosomal / Q000235:genetics; D012867:Skin / Q000382:microbiology*
D004271:DNA, Fungal; D004275:DNA, Ribosomal; D021903:DNA, Ribosomal Spacer; D012335:RNA, Ribosomal; C065096:RNA, ribosomal, 26S